阅读说明：本技术 锁止机构、器具连接件、容器连接件、以及连接器具 (Locking mechanism, tool connector, container connector, and connector ) 是由 浅野稔浩 饭野智勇 高桥直之 须永直树 冈林正宪 服部美绪 于 2020-03-27 设计创作，主要内容包括：本发明提供一种锁止机构、器具连接件、容器连接件、以及连接器具,能够提高操作性,并且防止因拉拽而使卡合解除。锁止机构(160a)具有：容器连接件(20)的被卡合部(78)、以及器具连接件(100)的卡合部件(160)。卡合部件(160)具有：操作部(165)、与操作部(165)连续而形成且在操作部(165)被按压的状态下与容器连接件(20)接触的支点部(168)、与支点部(168)连续而形成且被卡合部(78)卡合的卡合部(161)、与卡合部(161)连续而形成且在操作部(165)被按压时通过弯曲来移动卡合部(161)的变形部(166)、以及与变形部(166)连续而形成且在孔(131)的边缘固定的固定部(169)。(The invention provides a locking mechanism, an appliance connector, a container connector and a connector, which can improve the operability and prevent the disengagement caused by pulling. The lock mechanism (160a) has: an engaged part (78) of the container connector (20) and an engaging member (160) of the instrument connector (100). The engaging member (160) has: the container connecting device comprises an operating part (165), a fulcrum part (168) which is formed continuously with the operating part (165) and is contacted with the container connecting piece (20) under the state that the operating part (165) is pressed, an engaging part (161) which is formed continuously with the fulcrum part (168) and is engaged with an engaged part (78), a deforming part (166) which is formed continuously with the engaging part (161) and moves the engaging part (161) by bending when the operating part (165) is pressed, and a fixing part (169) which is formed continuously with the deforming part (166) and is fixed on the edge of a hole (131).)

1. A lock mechanism that locks engagement of a first member having a cylindrical body portion formed in a cylindrical shape and having a hole penetrating therethrough in a radial direction and a second member inserted into the cylindrical body portion from one end of the cylindrical body portion, the lock mechanism comprising:

an engaged portion formed on an outer surface of the second member;

an engaging member having one end fixed to an edge of the hole and being long in an axial direction of the cylindrical body, the engaging member including: the engagement device includes an operating portion formed at the other end portion and having a gap with the second member in the radial direction, a fulcrum portion formed continuously with the operating portion in the axial direction of the barrel portion and contacting the second member in a state where the operating portion is pressed inward in the radial direction, an engagement portion formed continuously with the fulcrum portion in the axial direction and configured in a protruding shape protruding inward in the radial direction and engaging the engaged portion in the axial direction, and a deforming portion formed continuously with the engagement portion in the axial direction and bending to move the engagement portion outward in the radial direction when the operating portion is pressed inward in the radial direction.

2. The locking mechanism of claim 1,

and a posture adjusting portion that is formed between the engaging portion and the fulcrum portion, and that, when the operating portion is pressed inward in the radial direction, maintains a posture at which the engaging portion moves due to bending of the deforming portion, at a posture at which the engaged portion is engaged.

3. An appliance connector, comprising:

a cylindrical body portion fixed to the container, having a container-side flow path structure portion inside, configured in a cylindrical shape into which a container adapter having an engaged portion on an outer surface thereof can be inserted from one end, and having a hole formed at a position facing the container adapter in a radial direction;

a device-side flow path structure portion which is housed in the cylindrical portion and communicates with the container-side flow path structure portion when the container connector is inserted into the cylindrical portion;

an engaging member having one end fixed to an edge of the hole and being long in an axial direction of the cylindrical body, the engaging member including: an operating portion formed at the other end portion and having a gap between the operating portion and the container link in the radial direction, a fulcrum portion formed continuously with the operating portion in the axial direction and contacting the container link in a state where the operating portion is pressed inward in the radial direction, an engaging portion formed continuously with the fulcrum portion in the axial direction and configured in a protruding shape protruding inward in the radial direction and engaging the engaged portion in the axial direction in a state where the container-side flow path structure portion and the appliance-side flow path structure portion are communicated, and a deforming portion formed continuously with the engaging portion in the axial direction and bending to move the engaged portion outward in the radial direction when the operating portion is pressed inward in the radial direction.

4. The implement attachment of claim 3,

and a posture adjusting portion that is formed between the engaging portion and the fulcrum portion and maintains a posture at which the engaging portion moves due to the deformation of the deforming portion as a posture at which the engaged portion is engaged when the operating portion is pressed inward in the radial direction.

5. A container coupling, comprising:

an insertion section having a cylindrical barrel section having an instrument-side flow path structure section therein and having a hole formed therethrough in a radial direction, the insertion section being configured to be insertable into the barrel section from one end of the barrel section to which an instrument connector is fixed;

a container fixing portion fixed to the container;

a container-side flow path structure portion formed inside the insertion portion and the container fixing portion, communicating with the inside of the container when the container fixing portion is fixed to the container, and communicating with the appliance-side flow path structure portion when the insertion portion is inserted into the body portion;

an engaged portion having: an operation portion, a fulcrum portion formed continuously with the operation portion in an axial direction of the barrel portion and contacting the insertion portion in a state where the operation portion is pressed inward in a radial direction of the barrel portion, a protruding engagement portion formed continuously with the fulcrum portion in the axial direction and configured to protrude inward in the radial direction, and a deformation portion formed continuously with the engagement portion in the axial direction and configured to move the engagement portion outward in the radial direction by bending when the operation portion is pressed inward in the radial direction, the engaged portion being engaged with the engagement portion of the engagement member of the tool coupling in a state where the container-side flow path structure portion and the tool-side flow path structure portion are communicated, and being formed at the insertion portion.

6. An attachment device, comprising:

a container connector fixed to the container, having a container-side flow path structure section therein, and having an engaged section formed on an outer surface thereof;

an implement attachment having: a cylindrical body portion having a hole formed at a position radially opposed to the container adapter and into which the container adapter can be inserted from one end, an instrument-side flow path structure portion housed in the cylindrical body portion and communicating with the container-side flow path structure portion when the container adapter is inserted into the cylindrical body portion, and an engagement member,

the engaging member is an engaging member having one end fixed to an edge of the hole and being long in an axial direction of the cylindrical body, and includes: the engagement portion is configured to be engaged with the engagement portion in the axial direction in a state where the container-side flow path structure portion and the device-side flow path structure portion are communicated with each other, and the deformation portion is formed continuously with the engagement portion in the axial direction and causes the engagement portion to move outward in the radial direction by being bent when the operation portion is pressed inward in the radial direction.

Technical Field

The present invention relates to a locking mechanism, an instrument connector, a container connector, and a connector that connect two members and lock a state in which one engaging portion and the other engaged portion are engaged with each other.

Background

Conventionally, a connector for connecting a container such as a vial and a device in order to collect a liquid medicine in the container by a device such as a syringe has been known. The above-described connection device is known to have: a container connecting member fixed to a container mouth; and an instrument connector having an opening at one end thereof, and being inserted into the container connector through the opening to connect the container connector, thereby fixing the instrument.

Further, among the above-described connection devices, there is known a connection device in which a connection state of the appliance link and the container link is maintained by engaging an engaging portion provided on a peripheral wall of the appliance link with an engaged portion provided on an outer peripheral surface of the container link.

The engaging portion is disposed in a hole formed in a peripheral wall of the tool coupling, and the middle portion is provided at one end of a long engaging member fixed to the peripheral wall. The other end of the engaging member constitutes a pressing portion that is pressed inward of the tool connecting portion by the operator.

When the pressing portion is pressed by an operator, the engaging member rotates about the fixed portion fixed to the tool link, and the engaging portion moves in a direction away from the engaged portion of the container link. When releasing the connection between the tool link and the container link, the operator pushes the pressing portion to move the engaging portion to a position where the engagement with the engaged portion is released, and then pulls out the container link from the tool link (see, for example, patent document 1).

Documents of the prior art

Patent document

Patent document 1: international publication No. 2018/186361

Disclosure of Invention

Technical problem to be solved by the invention

However, in the case of a member in which the fixing portion serving as the rotation center is disposed between the engaging portion and the pressing portion as in the engaging member, when the container connector is attempted to be pulled out from the instrument connector, the engagement between the engaging portion of the instrument connector and the engaged portion of the container connector may be released.

That is, when the container connector is attempted to be pulled out from the tool connector, the engaging portion is pressed by the engaged portion, and a rotational moment is generated in the engaging member that moves the engaging portion in a direction away from the engaged portion with the fixed portion as a center. Therefore, when the container connector is tried to be pulled out from the tool connector with a predetermined force, the engaging portion is moved by the rotational moment generated in the engaging member, and as a result, the engagement between the engaging portion and the engaged portion may be released.

For example, in a connector for connecting a container containing a chemical solution and a syringe, it is not preferable to release the engagement between the engagement portion of the device connector and the engaged portion of the container connector against the intention of an operator.

Therefore, an engaging member having a structure in which the fixed portion is disposed on the opposite side of the pressing portion with the engaging portion interposed therebetween is considered, but in this structure, in order to release the engagement between the engaging portion and the engaged portion, the pressing portion needs to be pressed in a direction away from the outline, and operability is poor.

Therefore, the present invention provides a locking mechanism, an instrument connector, a container connector, and a connector that can improve operability and prevent disengagement of an engaging portion and an engaged portion by pulling.

Technical solution for solving technical problem

The present invention provides a lock mechanism for locking engagement between a first member having a cylindrical body portion (trunk portion) formed in a cylindrical shape and having a hole penetrating therethrough in a radial direction and a second member inserted into the cylindrical body portion from one end of the cylindrical body portion, the lock mechanism including: an engaged portion formed on an outer surface of the second member; an engaging member having one end fixed to an edge of the hole and being long in an axial direction of the cylindrical body, the engaging member including: the engagement device includes an operating portion formed at the other end portion and having a gap with the second member in the radial direction, a fulcrum portion formed continuously with the operating portion in the axial direction of the barrel portion and contacting the second member in a state where the operating portion is pressed inward in the radial direction, an engaging portion formed continuously with the fulcrum portion in the axial direction and configured to be a protrusion protruding inward in the radial direction and with which the engaged portion is engaged in the axial direction, and a deforming portion formed continuously with the engaging portion in the axial direction and with which the engaging portion is moved outward in the radial direction by being bent when the operating portion is pressed inward in the radial direction.

The instrument connector of the present invention comprises: a cylindrical body portion fixed to the container, having a container-side flow path structure portion inside, and configured in a cylindrical shape into which a container adapter having an engaged portion on an outer surface thereof can be inserted from one end, and having a hole formed at a position facing the container adapter in a radial direction; a device-side flow path structure portion which is housed in the cylindrical body portion and communicates with the container-side flow path structure portion when the container connector is inserted into the cylindrical body portion; an engaging member, one end of which is fixed to an edge of the hole and which is long in an axial direction of the cylindrical body, the engaging member including: the container connector includes an operating portion formed at the other end portion and having a gap between the operating portion and the container connector in the radial direction, a fulcrum portion formed continuously with the operating portion in the axial direction and contacting the container connector in a state where the operating portion is pressed inward in the radial direction, an engaging portion formed continuously with the fulcrum portion in the axial direction and configured in a protruding shape protruding inward in the radial direction and engaging the engaged portion in the axial direction in a state where the container-side flow path structure portion and the appliance-side flow path structure portion are communicated, and a deforming portion formed continuously with the engaging portion in the axial direction and bending to move the engaging portion outward in the radial direction when the operating portion is pressed inward in the radial direction.

The container connecting member of the present invention has: an insertion section having a cylindrical barrel section having an instrument-side flow path structure section therein and having a hole formed therethrough in a radial direction, the insertion section being configured to be insertable into the barrel section from one end of the barrel section to which an instrument connector is fixed; a container fixing portion fixed to the container; a container-side flow path structure portion formed inside the insertion portion and the container fixing portion, communicating with the inside of the container when the container fixing portion is fixed to the container, and communicating with the appliance-side flow path structure portion when the insertion portion is inserted into the body portion; an engaged portion having: an operation portion, a fulcrum portion formed continuously with the operation portion in an axial direction of the barrel portion and contacting the insertion portion in a state where the operation portion is pressed inward in a radial direction of the barrel portion, a protruding engagement portion formed continuously with the fulcrum portion in the axial direction and configured to protrude inward in the radial direction, and a deformation portion formed continuously with the engagement portion in the axial direction and configured to move the engagement portion outward in the radial direction by bending when the operation portion is pressed inward in the radial direction, are engaged with the engagement portion of the engagement member of the tool attachment in a state where the container-side flow path structure portion and the tool-side flow path structure portion are communicated, and are formed in the insertion portion.

The connector of the present invention comprises: a container connector fixed to the container, having a container-side flow path structure portion inside and having an engaged portion formed on an outer surface, and an instrument connector. The appliance attachment member has: a cylindrical body portion configured in a cylindrical shape into which the container adapter can be inserted from one end, and having a hole formed at a position facing the container adapter in a radial direction; a device-side flow path structure portion which is housed in the cylindrical portion and communicates with the container-side flow path structure portion when the container connector is inserted into the cylindrical portion; an engaging member having one end fixed to an edge of the hole and being long in an axial direction of the cylindrical body, the engaging member including: an operating portion formed at the other end portion and having a gap between the operating portion and the container link in the radial direction, a fulcrum portion formed continuously with the operating portion in the axial direction and contacting the container link in a state where the operating portion is pressed inward in the radial direction, an engaging portion formed continuously with the fulcrum portion in the axial direction and configured in a protruding shape protruding inward in the radial direction and engaging the engaged portion in the axial direction in a state where the container-side flow path structure portion and the appliance-side flow path structure portion are communicated, and a deforming portion formed continuously with the engaging portion in the axial direction and bending to move the engaging portion outward in the radial direction when the operating portion is pressed inward in the radial direction.

ADVANTAGEOUS EFFECTS OF INVENTION

According to the present invention, it is possible to provide a lock mechanism, an instrument connector, a container connector, and a connector that can improve operability and prevent disengagement of an engagement portion and an engaged portion by pulling.

Drawings

Fig. 1 is a perspective view showing the structure of an instrument connector according to a first embodiment of the present invention.

FIG. 2 is a sectional view showing the structure of the connector.

Fig. 3 is a side view showing a structure of the connecting tool partially cut away.

Fig. 4 is a perspective view showing the structure of a container connector used in the connector.

Fig. 5 is a side view showing the structure of the container-connecting unit.

Fig. 6 is a bottom view showing the structure of the container connecting member.

Fig. 7 is a plan view showing the structure of the container-connecting unit.

Fig. 8 is a sectional view showing the structure of the container-connecting unit.

Fig. 9 is a perspective view showing the structure of a container lid used in the container-connected unit.

Fig. 10 is a plan view showing the structure of the main body of the container connector.

Fig. 11 is a sectional view showing a state where the container-connecting unit is fixed to the container.

Fig. 12 is a sectional view showing main parts in a state where the container connector is connected to the container.

Fig. 13 is a perspective view showing the structure of a needle member used for the container-connecting unit.

Fig. 14 is a plan view showing the structure of the container connecting pin.

Fig. 15 is a side view showing the structure of the pin of the container connecting unit.

Fig. 16 is a perspective view showing the structure of a container lid used in the container-connected unit.

Fig. 17 is a side view showing the structure of the container cover.

Fig. 18 is a side view showing the structure of the container cover.

Fig. 19 is a bottom view showing the structure of the container cover.

Fig. 20 is a sectional view showing the structure of the container cover.

Fig. 21 is a sectional view showing the structure of the container cover.

Fig. 22 is a perspective view showing the structure of a container seal used in the container-connecting unit.

Fig. 23 is a side view showing the structure of the container sealing member.

Fig. 24 is a perspective view showing the structure of an instrument connector used in a common connector.

Fig. 25 is a side view showing the structure of the connecting member to the tool.

Fig. 26 is a side view showing the structure of the connecting member to the tool.

Fig. 27 is a sectional view showing the structure of the connecting member to the tool.

Fig. 28 is a perspective view showing the structure of one of the profile structure members used for the connecting member to the tool.

Fig. 29 is a side view showing the structure of the homoeogous structural member.

Fig. 30 is a side view showing the structure of another profile structural member used for a connecting tool.

FIG. 31 is a perspective view showing the structure of a needle holder used for the connection to an instrument.

Fig. 32 is a perspective view showing the structure of an inner sleeve used in the same-connection tool.

Fig. 33 is a side view showing the structure of the inner sleeve.

Fig. 34 is a bottom view showing the structure of the inner sleeve.

Fig. 35 is a perspective view showing the structure of a headgear used for the accessory attachment.

Fig. 36 is a side view showing the structure of the headgear.

Fig. 37 is a side view showing the structure of the headgear.

Fig. 38 is a plan view showing the structure of the headgear.

Fig. 39 is a bottom view showing the structure of the headgear.

Fig. 40 is a sectional view showing the structure of the headgear.

Fig. 41 is a perspective view showing a structure of a stopper used in a connector.

FIG. 42 is a sectional view showing the structure of the stopper sleeve.

FIG. 43 is a sectional view showing the structure of the stopper sleeve.

Fig. 44 is an explanatory diagram for explaining engagement of an engaging member used in the connector with an instrument and an engaged portion used in the connector with a container.

Fig. 45 is an explanatory diagram for explaining the engagement between the engaging member and the engaged portion.

Fig. 46 is an explanatory diagram for explaining the engagement between the engaging member and the engaged portion.

Fig. 47 is an explanatory diagram for explaining the release of the engagement between the engaging member and the engaged portion.

Fig. 48 is an explanatory view for explaining the connection with the tool connection piece and the connection with the container connection piece.

Fig. 49 is an explanatory view for explaining the connection with the tool connection piece and the connection with the container connection piece.

Fig. 50 is an explanatory view for explaining the connection with the tool connection piece and the connection with the container connection piece.

Fig. 51 is an explanatory view for explaining the connection with the tool connection piece and the connection with the container connection piece.

Fig. 52 is an explanatory view for explaining the connection with the tool connection member and the connection with the container connection member.

Fig. 53 is an explanatory view for explaining the connection with the tool connection member and the connection with the container connection member.

Fig. 54 is an explanatory view for explaining the connection with the tool connection piece and the connection with the container connection piece.

Fig. 55 is a perspective view showing the structure of an instrument attachment according to a second embodiment of the present invention.

Fig. 56 is a sectional view showing the structure of the connecting member to the tool.

Detailed Description

A connector 10 according to a first embodiment of the present invention will be described with reference to fig. 1 to 54.

Fig. 1 is a perspective view partially cut away of the structure of a connector 10. Fig. 2 is a sectional view showing the structure of the connector 10. Fig. 3 is a side view partially showing the structure of the connector 10. Fig. 3 shows a state in which the profile body main body 111 is rotated by 90 degrees around the axis of the profile body main body 111 with respect to fig. 2. Fig. 4 is a perspective view showing the structure of the container connector 20 used in the connector 10. Fig. 5 is a side view showing the structure of the container connector 20. Fig. 6 is a bottom view showing the structure of the container connection member 20.

Fig. 7 is a plan view showing the structure of the container connection member 20. Fig. 8 is a sectional view showing the structure of the container connector 20. Fig. 9 is a perspective view showing the structure of the container fixing portion body 40 used in the container connector 20. Fig. 10 is a plan view showing the structure of the container fixing portion body 40. Fig. 11 is a sectional view showing a state where the container connector 20 is fixed to the container 1. Fig. 12 is a sectional view showing main parts of a process of connecting the container coupler 20 to the container 1.

Fig. 13 is a perspective view showing the structure of the needle member 60 used in the container connection member 20. Fig. 14 is a plan view showing the structure of the needle member 60. Fig. 15 is a side view showing the structure of the needle member 60. Fig. 16 is a perspective view showing the structure of the container fixing portion 30 used in the container connection fitting. Fig. 17 is a side view showing the structure of the container fixing part 30. Fig. 18 is a side view showing the structure of the container fixing unit 30, and is a side view showing a state rotated by 90 degrees about the axis with respect to the container fixing unit 30 in fig. 17.

Fig. 19 is a bottom view showing the structure of the container fixing part 30. Fig. 20 is a sectional view of the container lid shown in fig. 18, taken along the line F20-F20. Fig. 21 is a sectional view of container fixing unit 30 taken along line F21-F21 in fig. 17. Fig. 22 is a perspective view showing the structure of the container packing 90 used in the container coupler 20. Fig. 23 is a side view showing the structure of the container seal 90.

Fig. 24 is a perspective view showing the structure of the tool link 100 used in the connection tool 10. Fig. 25 is a side view showing the structure of the instrument connector 100. Fig. 26 is a side view showing the structure of the tool attachment 100. Fig. 27 is a sectional view showing the structure of the instrument connector 100. Fig. 28 is a perspective view showing the structure of one of the profile structure members 132 used in the instrument connector 100. Fig. 29 is a side view showing the structure of the profile body structure member 132.

Fig. 30 is a side view showing the structure of another profile structure member 132 used for the instrument connector 100. Fig. 31 is a perspective view showing the structure of the needle holder 122 used in the instrument connector 100. Fig. 32 is a perspective view showing the structure of the inner case 140 used in the tool coupling 100. Fig. 33 is a side view showing the structure of the inner case 140. Fig. 34 is a bottom view showing the structure of the inner case 140.

Fig. 35 is a perspective view showing the structure of the headgear 180 used for the tool link 100. Fig. 36 is a side view showing the structure of the head cover 180. Fig. 37 is a side view showing the structure of the head cover 180. Fig. 38 is a plan view showing the structure of the head cover 180. Fig. 39 is a bottom view showing the structure of the head cover 180. Fig. 40 is a sectional view showing the structure of the head cover 180. Fig. 41 is a perspective view showing the structure of a stopper 230 used in the connector 10. Fig. 42 is a sectional view showing the structure of the stopper sleeve 230. Fig. 42 shows a state in which the two first arm portions 231 of the stopper sleeve 230 are cut at different cutting positions. Fig. 43 is a sectional view showing the structure of the stopper sleeve, and is a sectional view showing a state rotated by 90 degrees about the axis with respect to the stopper sleeve 230 shown in fig. 42. Fig. 43 shows a state in which the two first arm portions 231 of the stopper sleeve 230 are cut at different cutting positions.

Fig. 44 to 46 are explanatory views for explaining the engagement between the engaging member 160 used in the instrument connector 100 and the engaged portion 78 used in the container connector 20. Fig. 47 is an explanatory diagram for explaining the release of the engagement between the engaging member 160 and the engaged portion 78. Fig. 48 to 54 are explanatory views for explaining the connection between the instrument connector 100 and the container connector 20.

As shown in fig. 1, 2 and 11, the connector 10 includes: a container connector 20 which is formed so as to be attachable to the container 1, and an instrument connector 100 which is formed so as to be attachable to and detachable from the cylinder 8 of the syringe 7, which is an example of an instrument. The connector 10 has a liquid flow path L1 communicating with the container 1 and the syringe 7, and the medical fluid in the container 1 can be collected by the syringe 7 through the liquid flow path L1. Further, connector 10 has gas flow path L2 for communicating container 1 with air bladder 152 described later, and the pressure in container 1 can be kept constant by gas flow path L2. The vertical direction of the connector 10 is set in a state where the container 1 is disposed downward and the syringe 7 is disposed upward.

As shown in fig. 11, the container 1 is formed in a bottomed cylindrical shape capable of containing a chemical solution. The container 1 has, for example: a cylindrical body 2 formed in a cylindrical shape, a bottom wall portion 3 formed at the bottom end of the cylindrical body 2 and closing the cylindrical body 2, a cylindrical neck portion 4 formed at the upper end of the cylindrical body 2 and having a smaller diameter than the cylindrical body 2, a flange 5 formed at the upper end edge of the neck portion 4, and a plug 6 fixed in the opening of the neck portion 4 and sealing the opening of the neck portion 4.

The plug 6 is made of resin such as rubber and elastomer, and has flexibility. The plug 6 is formed so that a hole formed by inserting the needle portion 62 of the needle member 60 described later of the container connection piece 20 can be closed by restoring force liquid-tightly and air-tightly after the liquid needle 170 and the gas needle 175 move.

As shown in fig. 4, 5, 7 and 8, the container connecting member 20 includes: a container fixing portion 30 which is formed so as to be fixable to the container 1, a seal cover 70 which is fixed to the container fixing portion 30, and a container seal 90 which is provided on the seal cover 70.

As shown in fig. 2, the container fixing portion 30 includes: a liquid flow path structure portion L3 constituting a part of the liquid flow path L1, and a gas flow path structure portion L4 constituting a part of the gas flow path L2. As shown in fig. 2, specifically, the container fixing portion 30 includes: a vessel fixing portion body 40 fixedly formed on the vessel 1, and a needle member 60 fixed to the vessel fixing portion body 40 and having flow path structure portions L3 and L4 therein.

The container fixing portion body 40 is configured to be fixed to the container 1 in a state where the needle member 60 is inserted into the stopper 6 of the mouth portion of the container 1. Specifically, the container fixing portion body 40 includes: a base portion 41 for fixing the needle member 60, two arm portions 42 provided on the base portion 41, and engaging portions 43 provided on each of the two arm portions 42 and engageable with the neck portion 4 of each container 1.

As shown in fig. 10, the base portion 41 is formed in a plate shape having a hole 44 in the center thereof, in which the needle member 60 is disposed. The hole 44 has: an arc portion 45 configured as an arc, and a rectangular portion 46 configured as a rectangle.

The base portion 41 is further formed with an engagement claw 47 that engages with the needle member 60 inserted into the hole 44. The engagement claw 47 is disposed on the upper surface of the base 41, for example, in the vicinity of the hole 44. The engaging claws 47 are formed in plural, for example, two as a specific example. The two engagement claws 47 are arranged to face each other with the hole 44 interposed therebetween.

Here, as shown in fig. 6, a circle X is set. The center of the circle X is set at the same position as the center of curvature of the circular arc portion 45 of the hole 44, for example. Let the axis of the circle X be C3.

The engagement claw 47 has: a base portion 48 formed in a long plate shape extending upward from the base portion 41, and a claw portion 49 formed at an upper end of the base portion 48. The surface of the pawl portion 49 opposite to the surface facing the other engaging pawl 47 is configured as an inclined surface whose lower end is positioned radially outward of the hole 44 relative to the upper end of the surface.

As shown in fig. 9, two wrist portions 42 are provided at the base portion 41. The two wrist portions 42 are disposed at positions spaced apart by 180 degrees around the axis C3 of the circle X. The one arm portion 42 has flexibility to move the one engaging portion 43 in a direction approaching and a direction separating from the axis C3 side of the circle X set on the base portion 41. The other arm portion 42 has flexibility for moving the other engaging portion 43 in a direction approaching and separating from the axis C3 side of the circle X. As shown in fig. 6, the two wrists 42 are formed in a symmetrical shape with respect to a first virtual plane P1 passing through an axis C3 of the circle X and parallel to the axis C3.

A part of the arm portion 42 is located above one end of the arm portion 42 on the base portion 41 side. Specifically, wrist portion 42 includes: first arm portion 50, folded portion 51, and second arm portion 52.

The first arm portion 50 is continuous with the base portion 41 and is configured in a plate shape extending upward. The folded portion 51 is continuous with the first arm portion 50 and configured to be folded downward with respect to the first arm portion 50. Second arm portion 52 is formed continuously with folded portion 51. Second arm portion 52 extends downward from base portion 41, and is configured in a shape in which a distal end portion thereof is bent toward axis C3. An engaging portion 43 is provided at the tip of second arm portion 52.

The arm portions 42 configured as described above move the engaging portion 43 by the first arm portions 50, the folded-back portion 51, and the second arm portions 52 being bent. Wrist 42 has a certain thickness, for example. Alternatively, in order to facilitate the engagement portion 43 to swing around the folded portion 51, the folded portion 51 may be formed thinner than the first arm portion 50 and the second arm portion 52.

The engaging portion 43 is formed in a curved plate shape that is distant from the axis C3 from above downward along the axis C3. The upper end of the engaging portion 43 is formed in an abutting portion 53 that abuts against the neck portion 4 of the container 1. The surface of the engagement portion 43 on the side of the axis C3 is configured as a guide surface 54 that guides the neck portion 4 to the contact portion 53 together with the flange 5 of the container 1. The one engaging portion 43 and the other engaging portion 43 are configured to have symmetrical shapes with respect to a first virtual plane P1 passing through an axis C3 of the circle X and parallel to the axis C3.

The engaging portion 43 is configured in such a shape that the abutting portion 53 abuts the neck portion 4 of the container 1 at two points. In other words, the pair of abutting portions 53 abut against the neck portion 4 through four points. The guide surface 54 or the other end edge 56 described later of the engaging portion 43 is formed in a shape that contacts the flange 5 at two points while guiding the neck portion 4 to the abutting portion 53.

Specifically, the engaging portion 43 is formed in a symmetrical shape with respect to a second virtual plane P2 that passes through the axis C3 of the circle X and is orthogonal to the first virtual plane P1. When the engaging portion 43 is cut along a cross section orthogonal to the axis C3, the cross-sectional shape of the engaging portion 43 is formed into a substantially V-shape.

In other words, in the cross section of the guide surface 54 orthogonal to the axis C3 of the circle X, the second virtual plane P2 side of the guide surface 54 is disposed at a position distant from the axis C3 with respect to both ends of the guide surface 54 across the second virtual plane P2 in the direction parallel to the second virtual plane P2 among the directions orthogonal to the axis C3.

The engaging portion 43 is inclined with respect to the vertical direction such that the lower end of the engaging portion 43 is located farther from the other engaging portion 43 than the upper end of the engaging portion 43.

Here, the vertical direction is set for the connector 10 based on the state in which the container 1 is disposed downward and the syringe 7 is disposed upward, as described above. Therefore, in the container connection member 20, the up-down direction is parallel to the axis C3.

As shown in fig. 5 and 6, the engaging portion 43 is formed in a curved shape that is convex toward a side away from the other engaging portion 43. Further, the circumferential length of the lower end of the engaging portion 43 is set longer than the circumferential length of the upper end of the engaging portion 43. The circumferential length of the lower end of the engaging portion 43 is set to be longer than the length of the upper end to the lower end of the engaging portion 43 along the vertical direction of the engaging portion 43.

Here, the length of the engaging portion 43 in the circumferential direction is the length of the engaging portion 43 around the axis C3.

The guide surface 54 is inclined with respect to the axis C3, i.e., the vertical direction, such that the lower end of the guide surface 54 is located farther from the axis C3 than the upper end of the guide surface 54.

As shown in fig. 5 and 6, the guide surface 54 is formed into a curved surface that is convex to a side away from the axis C3. Specifically, a portion connecting the circumferential centers of the upper and lower ends of the guide surface 54 is formed in a straight line shape inclined with respect to the axis C3. The guide surface 54 is formed as a curved surface symmetrical to the linear portion. Here, a portion connecting the circumferential lower end of the guide surface 54 from the circumferential center of the upper end to the circumferential lower end is a portion located on the second imaginary plane P2.

Further, the circumferential length of the lower end of the guide surface 54 is set longer than the circumferential length of the upper end of the guide surface 54. The circumferential length of the lower end of the guide surface 54 is set to be longer than the length of the upper end to the lower end of the guide surface 54 along the vertical direction of the guide surface 54.

The guide surface 54 and the other end edge 56 described later are formed as curved surfaces symmetrical in the circumferential direction with respect to the center in the circumferential direction, and are formed as surfaces on which the flange 5 of the container 1 can be brought into contact with each other by two points when the container connector 20 is fixed to the container 1. Specifically, the guide surface 54 and the other end edge 56 described later contact the flange 5 through one point on one side via the second virtual plane P2, and contact the flange 5 through one point on the other side via the second virtual plane P2. The flange 5 is supported at four points by the pair of engaging portions 43.

Here, a portion of the engaging portion 43, which is configured with the second imaginary plane P2 therebetween, is defined as a first portion 43A, and a portion, which is configured with the second imaginary plane P2 therebetween, is defined as a second portion 43B. The first portion 43A and the second portion 43B are formed in a symmetrical shape with respect to the second virtual plane P2.

The first portion 43A has: a first contact portion structure 53A which is a part of the contact portion 53, and a first guide surface structure 54A which is a part of the guide surface 54. The second portion 43B has: a second contact portion structure portion 53B as another portion of the contact portion 53, and a second guide surface structure portion 54B as another portion of the guide surface 54.

The first contact portion structure 53A and the second contact portion structure 53B are configured to have symmetrical shapes with respect to the second virtual plane P2. The first guide surface structure portion 54A and the second guide surface structure portion 54B are formed as surfaces symmetrical with respect to the second virtual plane P2.

As shown in fig. 6, the first contact portion structure portion 53A is formed to have a shape inclined so as to gradually approach the first imaginary plane from one end on the second imaginary plane P2 side to the other end.

The first guide surface structure portion 54A will be specifically described.

In a cross section of the first portion 43A orthogonal to the axis C3 of the circle X, one end edge 55 of the first guide surface structure portion 54A on the second virtual plane P2 side is disposed at a position distant from the axis C3 in a direction parallel to the second virtual plane P2 among directions orthogonal to the axis C3, with respect to the other end edge 56 of the guide surface 54 on the opposite side to the second virtual plane P2.

One end edge 55 of the first guide surface structure portion 54A is formed, for example, as a straight line whose extended line is inclined with respect to the axis C3. Here, the one end edge 55 is a line passing through the center in the circumferential direction of the guide surface 54, and in the present embodiment, is a line on the second virtual plane P2. One end edge 55 of the first guide surface structure portion 54A is formed, for example, as a straight line whose extended line forms 45 degrees with the axis C3.

The circumferential length of the lower end of the first guide surface structure portion 54A is set to be longer than the circumferential length of the upper end of the first guide surface structure portion 54A. The other end edge 56 is disposed closer to the other engagement portion 43 than the one end edge 55. The other end edge 56 is configured to extend in a direction away from both the other engagement portion 43 and the one end edge 55 with respect to the one end edge 55.

The circumferential length from the one end edge 55 to the other end edge 56 is set to a length that can prevent the cylindrical body portion 2 from coming into contact with the guide surface 54 even when the flange 5 is brought into contact with the guide surface 54 and guided by the guide surface 54 to the contact portion 53, for the container 1 having the largest outer diameter of the cylindrical body portion 2.

Therefore, as shown in fig. 6, in the first guide surface structure portion 54A, when viewed from below, the extension line of the one end edge 55 on the second imaginary plane P2 side and the extension line of the other end edge 56 on the opposite side to the one end edge 55 are formed into a fan shape intersecting with each other.

At least the upper end side of the other end edge 56 is formed as a curved portion. The curved portion includes an upper end of the other end edge 56. Specifically, the curved portion extends downward and is formed in a curved shape having a center of curvature located on the opposite side of the other engaging portion 43 with the guide surface 54 interposed therebetween. The other end edge 56 is formed, for example, linearly on the lower end side closer to the lower end than the curved portion.

The first guide surface structure portion 54A is configured as a curved surface in which the one end edge 55 and the other end edge 56 configured as described above are continuous. For example, the first guide surface structure portion 54A is configured such that a curved portion of the other end edge 56 gradually approaches the curved surface of the one end edge 55 from the other end edge 56 toward the one end edge 55.

The first guide surface structure portion 54A configured as described above includes, for example: a portion configured as a curved surface having a center of curvature located on the opposite side of the other engaging portion 43 with respect to the first guide surface structure portion 54A, and a portion configured as a curved surface having a center of curvature located on the other engaging portion 43 side with respect to the first guide surface structure portion 54A.

This structure will be specifically explained. Fig. 12 is a cross-sectional view showing the vicinity of the tangent point a of the first guide surface structure portion 54A and the flange 5 in the process of connecting the container 1 to the container coupler 20. Fig. 12 shows a state after cutting along a cross section parallel to the axis C3 of the circle X and the tangent S to the tangent a. The tangent S to the tangent point a is indicated by a one-dot chain line in fig. 6. As shown in fig. 6, the guide surface 54 is inclined with respect to the second imaginary plane P2, for example, in a state where the container connection member 20 is viewed from below.

As shown in fig. 12, the guide surface 54 is formed as a curved surface in which a tangent S passing through the tangent point a with which the flange 5 contacts is inclined at an angle α with respect to the first virtual plane P1. The angle alpha is less than 90 degrees.

As shown in fig. 12, the first guide surface structure portion 54A is formed as a curved surface in which the center Z of curvature of a part of the first guide surface structure portion 54A constituting the edge of the cross section of the engagement portion 43 cut along the tangent line S is located on the opposite side of the first virtual plane P1, that is, on the opposite side of the other engagement portion 43 across the first guide surface structure portion 54A. In other words, the guide surface 54 is formed in a shape that gradually expands from the top to the bottom in the axial direction of the circle X, i.e., that gradually separates from the axis C3 as it gradually expands from the top to the bottom. In other words, the first guide surface structure portion 54A is formed into a curved surface whose inclination angle α of the tangent S of the first guide surface structure portion 54A with respect to the first virtual plane P1 decreases as the contact portion 53 is approached from below.

A part, for example, a lower part of the first guide surface structure portion 54A is configured as a curved surface having a center of curvature located on the other engagement portion 43 side with respect to the first guide surface structure portion 54A.

In the above example, the first guide surface structure portion 54A has been described as an example of a structure having a portion configured as a curved surface having a center of curvature located on the opposite side of the other engaging portion 43 with the first guide surface structure portion 54A interposed therebetween, and a portion configured as a curved surface having a center of curvature located on the other engaging portion 43 side with respect to the first guide surface structure portion 54A. However, it is not limited thereto.

In another example, the first guide surface structure portion 54A may be configured not to have a portion in which a cross section along a direction parallel to the second virtual plane P2 is configured to have a curved surface whose center of curvature is located on the opposite side of the other engaging portion 43 across the first guide surface structure portion 54A and gradually expands from the upper side to the lower side, and to have a curved surface whose center of curvature is located on the other engaging portion 43 side with respect to the first guide surface structure portion 54A. Therefore, the first guide surface structure portion 54A is configured as a curved surface in which the inclination angle of the tangent line S with respect to the first virtual plane P1 decreases as it approaches the first contact portion structure portion 53A.

The first guide surface structure portion 54A is formed into a curved surface in which the curvature radius of a part of the first guide surface structure portion 54A decreases as going from the one end edge 55 to the other end edge 56, constituting a part of the cross-sectional edge of the engagement portion 43 cut along the tangent line S.

Therefore, in the present embodiment, the range from the one end edge 55 to the other end edge 56 of the first guide surface structure portion 54A is configured as a curved surface. In the first guide surface structure portion 54A, the radius of curvature is largest on the one end edge 55 side, and decreases as it progresses toward the other end edge 56 side. The other end edge 56 has the smallest radius of curvature.

In the above example, the first guide surface structure portion 54A has been described as an example in which the end edge 55 to the other end edge 56 are configured as curved surfaces, but the invention is not limited thereto. In another example, the first guide surface structure portion 54A is formed as a curved surface having a radius of curvature decreasing from the vicinity of the one end edge 55 toward the other end edge 56. Further, a range R1 near the one end edge 55 of the first guide surface structure portion 54A is formed to be, for example, a flat surface. Which is a plane parallel to one end edge 55. This range is a range that the container 1 does not contact.

Therefore, in this modification, the range from the vicinity of the one end edge 55 to the other end edge 56 of the first guide surface structure portion 54A is configured as a curved surface. In the range where the first guide surface structure portion 54A is formed into a curved surface, the radius of curvature of one end on the one end edge 55 side is the largest, and the radius of curvature decreases as it progresses toward the other end edge 56 side. The other end edge 56 has the smallest radius of curvature. When one end edge 55 is formed in a curved line, the radius of curvature of one end edge 55 is the largest.

The inclination angle α of the tangent S at the one end of the other end edge 56 of the first guide surface structure 54A on the side of the contact portion 53 with respect to the first virtual plane P1 is smaller than the inclination angle α of the extension line of the one end edge 55 of the first guide surface structure 54A with respect to the first virtual plane P1.

The first guide surface structure portion 54A is formed in a curved surface in which a portion of the first guide surface structure portion 54, which forms a portion of an edge of a cross section of the engaging portion 43 orthogonal to the axis C3, has a center of curvature located on the first virtual plane P1 side. The curvature is set to a curvature that can prevent the cylindrical body portion 2 of the container 1 from coming into contact with the guide surface 54 while the flange 5 of the container 1 is guided to the contact portion 53 by the guide surface 54.

Further, one end edge 55 of the first guide surface structure portion 54A is formed in a straight line or a curved line. In the present embodiment, as described above, the one end edge 55 is formed linearly, for example.

The guide surface 54 having the first guide surface structure portion 54A and the second guide surface structure portion 54B configured as described above and the guide surface 54 of the other engagement portion constitute a curved surface capable of guiding the flange 5 of the plurality of types of containers 1 to the abutment portion 53. Here, the plurality of containers 1 means a plurality of containers 1 having different outer diameters of the flange 5. The guide surface 54 may be configured to guide the container 1 having the flange 5 having the assumed minimum diameter to the maximum diameter toward the abutment portion 53.

Specifically, the area near the one end edge 55 of the first guide surface structure portion 54A is formed such that, when the flange 5 of the container 1 is guided to the abutting portion 53 by the guide surfaces 54 of the pair of engaging portions 43, it is assumed that the flange 5 having the smallest diameter most likely abuts near the one end edge 55. The first guide surface structure portion 54A is formed in a region near the one end edge 55 so as to guide the flange 5, which is supposed to have the smallest diameter, to the first contact portion structure portion 53A.

The guide surface 54 is pressed open by pressing the container 1 having the flange 5 of the assumed smallest diameter along the axis C3.

Here, the guide surface 54 being pressed open means that the guide surface 54 moves in a direction away from the other engagement portion 43. The region near the one end edge 55 of the first guide surface structure portion 54A is configured as a surface inclined with respect to the direction parallel to the axis C3 with respect to the tangent S at the position of contact with the flange 5 even when the guide surface 54 is pressed open to the state before engagement with the neck portion 4 of the container 1.

Even when the outer diameter of the neck portion 4 is small and the engagement portion 43 is not expanded in a state where the neck portion 4 is sandwiched by the pair of contact portions 53, the one end edge 55 is inclined at a predetermined angle, for example, 45 degrees with respect to the axis C3. This inclination is an inclination that the guide surface 54 does not collide with the barrel 2.

The first guide surface structure portion 54A is configured to be capable of being guided to the contact portion 53 while being in contact with the flange 5 having a diameter larger than the assumed minimum diameter on the side closer to the other end edge 56 than the position where the flange 5 having the assumed minimum diameter is in contact. The other end edge 56 of the first guide surface structure portion 54A is configured to be contactable with the flange 5 having the assumed maximum diameter. The other end edge 56 of the first guide surface structure portion 54A is formed so as to guide the flange 5, which assumes the largest diameter, to the first contact portion structure portion 53A.

Specifically, even when the other end edge 56 of the first guide surface structure portion 54A is pressed open to a state before the guide surface 54 is engaged with the neck portion 4 of the container 1, a tangent line of a position where the flange 5 abuts is formed as a line inclined with respect to a direction parallel to the axis C3. That is, the other end edge 56 is configured such that the guide surface 54 is further pushed open by further pushing the container connector 20 from this state, and the contact portion 53 is configured to be engageable with the neck portion 4 beyond the flange 5.

The guide surface 54 may be configured to abut against the flange 5 having a diameter between the assumed minimum diameter and the maximum diameter at one point on both sides with the one end edge 55 therebetween, and to guide the flange 5 to the abutting portion 53.

An inclination angle α of a tangent S to the lower end of the other end edge 56 of the first guide surface structure portion 54A on the opposite side to the abutting portion 53 with respect to the first virtual plane P1 is larger than an inclination angle α of an extension line of the one end edge 55 of the first guide surface structure portion 54A with respect to the first virtual plane P1.

In the upper end portion R2, which is the one end portion of the first guide surface structure portion 54A on the side of the contact portion 53, the inclination angle α of the tangent line S with respect to the first virtual plane P1 decreases from the one end edge 55 to the other end edge 56. The upper end portion R2 is located in the vicinity of the contact portion 53 in the first guide surface structure portion 54A. In addition, at the lower end portion R3 of the first guide surface structure portion 54A on the opposite side to the contact portion 53, the inclination angle α of the tangent line S with respect to the first virtual plane P1 increases from the one end edge 55 to the other end edge 56. The lower end portion R3 is a range near the lower end of the guide surface 54.

The guide surface 54 having the first guide surface structure portion 54A and the second guide surface structure portion 54B configured as described above is configured to guide the container 1 having the flange 5 of the container 1 with an outer diameter of 32mm or less to the contact portion 53. In fig. 6, the flange 5 of the container 1 having a diameter (outer diameter of the flange 5) of 13mm and the flange 5 of the container 1 having a diameter of 20mm are shown by two-dot chain lines. Fig. 6 shows a state where the flange 5 having the largest diameter is supposed to abut against the other end edge 56.

The guide surface 54 and the tangent point a of the flange 5 of the container 1 are moved within the guide surface 54 by pressing the container coupling member 20 into the container 1. The locus of tangent point a is made contact line S1. The contact line S1 is a line along the second virtual plane P2 when viewed from below.

In the container connector 20, the positions of the contact points a of the container 1 and the guide surface 54 are different depending on the size of the bore of the container 1. Specifically, in the case of the small-diameter container 1, the tangent point a is arranged at a position on the guide surface 54 close to the second virtual plane P2. In the case of the large-diameter container 1, the tangent point a is arranged at a position of the guide surface 54 distant from the second imaginary plane P2. The flange 5 of the container 1 having the flange 5 of the assumed maximum diameter abuts on the other end edge 56.

Further, as shown in fig. 6, since the guide surface 54 is formed in a fan shape, the circumferential length of the guide surface 54 around the axis C3 increases. Specifically, the circumferential length of the other end of the guide surface 54 is longer than the circumferential length of the one end of the guide surface 54 on the side of the contact portion 53. Therefore, the container 1 having a relatively small diameter abuts on the region on one end side of the guide surface 54, and the container 1 having a relatively large diameter abuts on the region on the other end side of the guide surface 54.

When the container adapter 20 is connected to the container 1, the engagement portion 43 is pressed open by the container 1 by pressing the container adapter 20 against the container 1. The guide surface 54 is away from the axis C3 of the circle X due to the engagement portion 43 being pressed open. Therefore, the inclination angle α of the tangent line S at the same position of the guide surface 54 with respect to the first virtual plane P1 increases with respect to the state in which the first portion 43A is not pressed open in the state in which the first portion 43A is pressed open by the container 1.

However, by forming the guide surface 54 into a curved surface, the amount of increase in the inclination angle α due to the progress of the container connection member 20 toward the container 1 can be alleviated. Further, by forming the guide surface 54 as a curved surface having the above-described characteristics, an amount of increase in the inclination angle α of the tangent line S with respect to the first virtual plane P1, which is generated by the progress of the container link 20 toward the container 1, can be reduced at any portion of the guide surface 54. That is, the increase width of the angle α can be reduced.

By thus pressing the guide surface 54 open by the container 1, the position of the contact point a of the guide surface 54 with the container 1 changes. The guide surface 54 is formed as a curved surface that does not change the angle α significantly as described above even if the position of the tangent point a changes. The angle alpha is substantially 45 degrees.

The other engaging portion 43 is formed in a shape symmetrical to the one engaging portion 43 with respect to the first virtual plane P1.

As shown in fig. 6, the center portion of the contact portion 53 around the axis C3 is recessed in an arc shape on a side away from the other engaging portion 43, compared to other portions.

As shown in fig. 13 to 15, the needle member 60 includes: a needle member base 61 constituting one end side of the needle member 60, and a needle portion 62 constituting the other end side of the needle member 60.

The needle member base 61 constitutes an upper portion of the base 41. The needle member base 61 is formed in a columnar shape. A flange 63 is formed on the upper end edge of the needle member base 61. Further, an annular extending portion 64 extending in a direction away from the axis of the needle member base portion 61 is formed on the outer peripheral surface of the needle member base portion 61. Specifically, the extension 64 is formed with three. A column portion 65 for connecting the flange 63 and the extension portion 64 facing the flange 63 is formed therebetween. A column portion 65 for connecting the above members is formed between the two extending portions 64 facing each other.

Further, a rotation stopper 66 disposed in the rectangular portion 46 of the hole 44 is provided at a lower end portion of the outer peripheral surface of the needle member base portion 61. The rotation stopper 66 has a cross-sectional shape perpendicular to the axial direction of the needle member base 61, for example, the same shape as or smaller than the rectangular portion 46.

As shown in fig. 8, a contact portion 67 that contacts the edge of the hole 44 from above is formed at the lower end of the outer peripheral surface of the needle member base 61. The contact portion 67 is configured as a protruding portion from which a part of the outer peripheral surface of the needle member base portion 61 protrudes, for example. Since the abutment portion 67 abuts against the edge of the hole 44 from above, the needle member 60 is held in the hole 44.

The needle portion 62 constitutes a portion closer to the lower side than the base portion 41. The tip of the needle 62 is pointed.

The needle member 60 configured as described above includes therein: a liquid flow path structure portion L3 constituting a part of the liquid flow path L1, and a gas flow path structure portion L4 constituting a part of the gas flow path L2.

The liquid flow path structure portion L3 is a hole extending in the axial direction of the needle member 60 from the upper end surface of the needle member base 61 to the lower end side of the needle portion 62. The lower end of the liquid flow path structure portion L3 opens on the surface of the needle portion 62. The liquid flow path structure portion L3 is configured such that the portion configured in the needle member base portion 61 has a larger flow path area orthogonal to the axial direction of the needle member 60 than the portion configured in the needle portion 62.

The gas flow path structure portion L4 is a hole extending in the axial direction of the needle member 60 from the upper end surface of the needle member base 61 to the lower end side of the needle 62. The lower end of the gas flow path structure portion L4 opens on the surface of the needle portion 62. The gas flow path structure portion L4 is configured such that the portion configured in the needle member base portion 61 has a larger flow path area orthogonal to the axial direction of the needle member 60 than the portion configured in the needle portion 62.

The lower end opening of the liquid flow path structure portion L3 is located above the lower end opening of the gas flow path structure portion L4. This is because, when the connector 10, the container 1, and the syringe 7 are tilted so as to dispose the container 1 above the connector 10, the medical fluid staying on the neck portion side of the container 1 can be introduced into the liquid flow path structure portion L3.

As shown in fig. 16 to 21, the seal cover 70 is formed in a tubular shape in which the needle member base 61 and the container seal 90 are housed inside. The seal cover 70 is configured to be able to release the locking of the later-described contour body 110 and the stopper sleeve 230 of the tool attachment 100 and to be lockable with the stopper sleeve 230. The seal cap 70 is formed in a cylindrical shape into which the needle member base 61 is fitted.

As shown in fig. 16, specifically, the seal cover 70 includes: a cylindrical large diameter portion 71 for a seal cap, a middle diameter portion 72 for a seal cap formed on the large diameter portion 71 for a seal cap, and a small diameter portion 73 for a seal cap formed on the middle diameter portion 72 for a seal cap.

A plurality of grooves extending in the circumferential direction are formed on the outer circumferential surface of the large diameter portion 71 for the seal cover.

The seal cover intermediate diameter portion 72 is configured to have a smaller diameter than the seal cover large diameter portion 71. The seal cap intermediate diameter portion 72 is formed so as to come into contact with a later-described stopper sleeve 230 of the tool link 100 when the container link 20 is inserted into the tool link 100 and reaches a predetermined position in the tool link 100, and to release the locking of the stopper sleeve 230 with the outline 110. Specifically, the seal cover intermediate diameter portion 72 is configured as a conical surface in which the upper end portion 72a of the outer peripheral surface gradually decreases in diameter upward.

Further, a locking recess 77 is formed in the seal cap intermediate diameter portion 72, and the locking recess 77 engages with the stopper sleeve 230 when the container coupler 20 is inserted into the tool coupler 100 and reaches a predetermined position in the tool coupler 100.

The locking recess 77 is a recess formed in a range from a lower end to a middle portion of a part of the outer peripheral surface of the seal cover middle diameter portion 72 in the circumferential direction in the axial direction. The upper surface of the locking recess 77 is an engaged surface with which the stopper 230 can be engaged.

The seal cap intermediate diameter portion 72 is formed with an engaged portion 78 that can be engaged by an engagement member 160 described later of the tool coupling 100. Specifically, the engaged portion 78 is formed in a part of the upper end portion 72a formed by the conical surface of the outer peripheral surface of the seal cap intermediate diameter portion 72. The engaged portion 78 is a protruding portion that is formed in a part of the seal cover intermediate diameter portion 72 and protrudes radially outward. The lower surface 79 of the engaged portion 78 is configured as a flat surface orthogonal to the axial direction of the seal cover 70, for example.

Further, a first guide protrusion 75 for guiding the axial movement of the container connector 20 in the profile body 111 of the tool connector 100 is formed on the outer peripheral surface of the large diameter portion 71 for the seal cap and the outer peripheral surface of the medium diameter portion 72 for the seal cap.

The first guide projection 75 is formed in a projection shape projecting radially outward. The first guide projection 75 is formed to be receivable in a first guide groove 126 formed in the profile body 111. The first guide projection 75 is formed in plural, for example. One first guide projection 75 is formed, for example.

The small diameter portion 73 for the seal cover is formed in a small diameter cylindrical shape having a smaller diameter than the upper end of the middle diameter portion 72 for the seal cover. The small diameter portion 73 for the seal cover is formed in a cylindrical shape that is movably fitted into a ferrule 180 described later of the tool link 100.

As shown in fig. 20, the edge 73b of the opening 73a at the upper end of the small diameter portion 73 for the seal cover is formed in an annular shape extending radially inward. The opening 73a is formed in a circular shape. The seal-cap small-diameter portion 73 has a length in the axial direction in which a part of the container seal 90 can be disposed between the lower surface 73c of the rim 73b and the upper end of the needle member base 61.

As shown in fig. 8 and 19 to 21, the inner peripheral surface 76 of the seal cap 70 configured as described above is formed with a groove 81 in which the engagement claw 47 of the container fixing portion body 40 is disposed. The groove 81 has an engaged surface 82 extending in the axial direction and engaging the claw portion 49 of the engaging claw 47 with an end portion. The engagement surface 82 is formed as a plane orthogonal to the axial direction, for example. The engagement claws 47 of the container fixing section main body 40 are received in the grooves 81, and the claw portions 49 are engaged with the engaged surfaces 82 in the axial direction, thereby fixing the seal cover 70 and the container fixing section main body 40.

As shown in fig. 8, a part of the container seal 90 is housed in the seal cover 70, and the other part of the container seal 90 is disposed outside the seal cover 70 through the opening 73a at the upper end of the seal cover 70. The container seal 90 is configured to seal the opening 73a of the sealing cover 70. The container seal 90 may be configured to seal the opening of the liquid flow path structure portion L3 and the opening of the gas flow path structure portion L4 of the needle member 60.

The container seal 90 is made of resin such as rubber and elastomer, and has flexibility. Further, the holes formed by the liquid needle 170 and the gas needle 175 described later inserted into the instrument connector 100 can be formed to be closed by restoring force in a liquid-tight and air-tight manner after the liquid needle 170 and the gas needle 175 move.

As shown in fig. 22 and 23, specifically, the container seal 90 includes: a seal large diameter portion 93 disposed in the seal cap 70, a seal small diameter portion 94 formed on the upper surface of the seal large diameter portion 93 and disposed in the opening 73a, a first fitting portion 96 formed on the lower surface of the seal large diameter portion 93 and disposed in the opening of the liquid flow path structure portion L3, and a second fitting portion 97 formed on the lower surface of the seal large diameter portion 93 and disposed in the opening of the gas flow path structure portion L4.

The seal large diameter portion 93 may be formed to seal between the inner circumferential surfaces 76 of the seal cover 70. Specifically, the seal large diameter portion 93 has an outer diameter larger than the inner diameter of the seal cap 70, and is configured in a cylindrical shape longer than the distance from the upper end of the needle member 60 to the edge 73b of the seal small diameter portion 73 in the axial direction.

The seal small diameter portion 94 is configured to seal the opening 73 a. Specifically, the seal small-diameter portion 94 has an outer diameter larger than the inner diameter of the opening 73a, and is configured in a cylindrical shape in which a part in the axial direction protrudes upward from the upper surface of the seal small-diameter portion 73.

The portion of the seal small-diameter portion 94 that protrudes outward beyond the upper surface of the seal small-diameter portion 73 is a crush compensation amount (generation) for sealing between the needle seals 200 by abutting and crushing the needle seals 200 described later. The crushing compensation amount is set to an amount that can seal between the upper surface of the seal small diameter portion 94 and the needle seal 200. The upper end surface 95 of the seal small diameter portion 94 is configured as a plane orthogonal to the axial direction of the seal small diameter portion 94.

The first fitting portion 96 may be formed to seal the opening of the liquid flow path structure portion L3. Specifically, the first fitting portion 96 is formed in a cylindrical shape having an outer diameter larger than the inner diameter of the liquid flow path structure portion L3.

The second fitting portion 97 may be configured to seal the opening of the gas flow path structure portion L4. Specifically, the second fitting portion 97 is formed in a cylindrical shape having an outer diameter larger than the inner diameter of the gas flow path structure portion L4.

Next, the instrument connector 100 will be described. As shown in fig. 24 and 27, the instrument connector 100 includes: the present invention relates to a syringe including a contour body 110, an air bladder 152 housed in the contour body 110, a liquid needle 170 constituting a part of a liquid flow path L1, a gas needle 175 constituting a part of a gas flow path L2, a cylindrical head cover 180 housed so as to be movable in the contour body 110, a needle seal 200 fixed to the head cover 180, a stopper 230 configured to selectively fix the head cover 180 to the contour body 110 and to selectively fix the head cover 180 to a container connector 20, and a biasing member 250 biasing the head cover 180 in a direction extending from the contour body 111.

As shown in fig. 2 and 27, the contoured body 110 includes: a contour body 111, an air bag housing portion 150 housing an air bag 152, and an engaging member 160 releasably locking the contour body 111 to the container link 20.

The profile body 111 is formed in a bottomed cylindrical shape. Specifically, the profile body main body 111 includes: a top wall portion 114, a syringe fixing portion 115 formed on the top wall portion 114 and to which the cylinder 8 of the syringe 7 can be fixed, a liquid needle fixing portion 116 formed on the top wall portion 114 and to which the liquid needle 170 can be fixed, a cylindrical barrel portion 117 formed on the peripheral edge of the top wall portion 114, and an inner jacket 140 fixed inside the contour body 111.

As shown in fig. 1 and 2, the top wall portion 114 is formed in a disc shape, for example.

The syringe fixing portion 115 is formed on the upper surface of the top wall portion 114, and is formed in a cylindrical shape protruding upward from the other portion of the upper surface. The syringe fixing portion 115 is formed to be fittable into the distal end portion of the cylinder 8. Specifically, the syringe fixing section 115 includes: a syringe fixing portion body 120 formed in a cylindrical shape, and a syringe fixing portion protrusion 121 formed on a peripheral edge of an upper end of the syringe fixing portion body 120 and protruding outward in a radial direction.

The syringe fixing portion protrusion 121 is formed in plural, for example. The syringe fixing section protrusion 121 has a predetermined length in the circumferential direction of the syringe fixing section body 120. The syringe fixing portion protrusion 121 is screwed into a female screw portion formed at the distal end of the cylinder 8 to fix the syringe 7 and the instrument connector 100.

The liquid needle fixing portion 116 protrudes downward from the lower surface of the top wall portion 114, and is formed in a cylindrical shape in which the liquid needle 170 is fixed. The liquid needle fixing part 116 communicates with the inside of the syringe fixing part body 120. The liquid needle fixing section 116 is formed in a cylindrical shape, for example.

The syringe fixing portion 115 and the liquid needle fixing portion 116 are formed by, for example, a needle holder 122 which is a member different from other portions of the profile body 111. In other words, the syringe fixing section 115 and the liquid needle fixing section 116 are configured by attaching the needle holder 122 to the profile body 111.

As shown in fig. 31, the needle holder 122 has: a base 124, a syringe fixing portion 115, and a liquid needle fixing portion 116.

The base 124 is formed in a cylindrical shape having a larger diameter than the liquid needle fixing portion 116 and a smaller diameter than the syringe fixing portion 115. As shown in fig. 31, a ratchet 124a is formed on the outer peripheral surface of the base 124, and the ratchet 124a allows the needle holder 122 to rotate only in one direction around the axis of the syringe fixing section 115 and restricts rotation in the opposite direction. The rotation direction of the needle holder 122 allowed by the ratchet 124a is a direction in which the syringe 7 is rotated with respect to the syringe fixing section 115 in order to remove the syringe 7 from the syringe fixing section 115.

As shown in fig. 29, a protrusion 123 protruding downward is formed on the lower surface of the top wall portion 114. The protrusion 123 abuts against the ratchet 124a in a direction in which the syringe 7 is rotated with respect to the syringe fixing section 115 to fix the syringe 7 to the syringe fixing section 115, and restricts the rotation of the needle holder 122.

As shown in fig. 27, the cylindrical portion 117 is formed in a cylindrical shape into which the large diameter portion 71 for the seal cap of the container adapter 20 is movably fitted. A hole 117a in which a part of the inner jacket 140 is disposed is formed in an upper end portion of the cylindrical portion 117. The hole 117a communicates with the inside of the air bag housing portion 150.

The cylindrical body 117 has a first guide groove 126 formed in a part of a lower end portion of an inner peripheral surface 117b thereof to movably receive the first guide protrusion 75 of the seal cover 70 of the container link 20. First guide groove 126 opens to the lower end of body portion 117. Through this opening, the first guide projection 75 enters the first guide groove 126.

The first guide groove 126 has at least a length that can guide the upward movement of the container connection piece 20 to a position where the liquid flow path L1 and the gas flow path L2 are formed by disposing the liquid needle 170 in the liquid flow path structure portion L3 and disposing the gas needle 175 in the gas flow path structure portion L4.

The first guide groove 126 extends in the axial direction of the contour body 110. The width of the first guide groove 126 along the circumferential direction of the contoured body 110 is sized so that the first guide projection 75 can be inserted movably. The inner surface of the first guide groove 126 abuts against the first guide projection 75 in the circumferential direction, thereby preventing the container connection member 20 from rotating. The first guide grooves 126 are formed in the number corresponding to the number of the first guide projections 75. The first guide groove 126 is formed with one, for example.

Further, the cylindrical body 117 has a second guide groove 127 formed in an axially intermediate portion of its inner circumferential surface, at a portion axially aligned with the first guide groove 126, for movably receiving a second guide projection 182 described later of the head cover 180.

The second guide groove 127 extends in the axial direction of the profile body main body 111. The second guide groove 127 has at least a length that can guide the upward movement of the container link 20 to a position where the liquid flow path L1 and the gas flow path L2 are formed.

The width of the second guide groove 127 in the circumferential direction of the profile body main body 111 has a size in which the second guide projection 182 is movably fitted. The inner surface of the second guide groove 127 is formed to prevent the rotation of the head cover 180 by coming into contact with the second guide projection 182 in the circumferential direction. The second guide groove 127 is formed in plural, for example. The second guide grooves 127 are formed in two, for example, and are arranged at an interval of 180 degrees in the circumferential direction of the profile body 111.

As shown in fig. 29 and 30, a lock projection 128 is formed at a position circumferentially offset from the second guide groove 127 at an axially intermediate portion of the inner peripheral surface of the body portion 117. The locking projection 128 projects radially inward of the profile body 111.

The locking projection 128 is formed to be capable of restricting upward movement of the head cover 180 fixed to the stopper 230 by engaging with the stopper 230.

The plurality of locking projections 128 are formed, for example. The two locking projections 128 are formed, for example. The two locking projections 128 are arranged at an interval of 180 degrees in the circumferential direction of the body 117, and are arranged at positions shifted by 45 degrees from the circumferential direction of the profile body 111 with respect to the first guide groove 126 and the second guide groove 127.

As shown in fig. 30 and 31, a lock releasing projection 129 is formed at a position shifted from the lock projection 128 in the circumferential direction at an axially intermediate portion of the inner circumferential surface of the body portion 117. The lock release protrusion 129 protrudes radially inward of the profile body main body 111.

The lock release projection 129 is formed to be able to release the engagement between the stopper sleeve 230 and the lock recess 77 of the container coupler 20 by abutting against the stopper sleeve 230.

As shown in fig. 50, the lock release protrusion 129 is formed in a shape such that, for example, a middle portion thereof protrudes most inward in the radial direction of the profile body 111 in the axial direction of the barrel portion 117, and the amount of protrusion inward in the radial direction gradually increases from the upper end and the lower end thereof to the middle portion thereof.

The lock release protrusion 129 is formed in plural, for example. The lock release protrusion 129 is formed in two, for example. The two lock releasing projections 129 are arranged at a distance of 180 degrees in the circumferential direction of the profile body main body 111, and are separated from each other by 90 degrees in the circumferential direction with respect to the lock projection 128.

As shown in fig. 1, 3, 24, and 25, a hole 131 for accommodating, for example, a part of the engaging member 160 is formed in a lower end portion of the body portion 117. The hole 131 penetrates the cylindrical body 117 in the radial direction. The holes 131 are formed in plural numbers, for example. The holes 131 are formed in two, for example. The two holes 131 are arranged at a 180-degree interval in the circumferential direction of the profile body 110, for example, at positions separated by 90 degrees in the circumferential direction with respect to the first guide groove 126 and the second guide groove 127.

The profile body main body 111 configured as described above is configured by combining a plurality of members, for example. The profile body 111 is formed, for example, by fixing two profile body structural parts 132. Fig. 2 shows the state where one of the outline structure members 132 is removed. Fig. 28 and 29 show one of the outline structural members 132. Fig. 30 shows the inner surface of another profile structural member 132.

As shown in fig. 28 to 30, each of the two contour structure members 132 has a shape that divides the contour body 111 into two parts by a plane passing through the axis of the contour body 111, the axial direction of the contour body 111, and the direction in which the contour body 111 and the air bag housing portion 150 are arranged in parallel.

For example, one of the contoured body structure members 132 has a plurality of pins 134. The other contour structure member 132 has a plurality of holes 135 into which a plurality of pins 134 are fitted. The two contoured body structure members 132 are integrally fixed by fitting a plurality of pins 134 into a plurality of holes 135.

As shown in fig. 2, the inner case 140 constitutes a gas flow path structure portion L5 that is a portion from the gas needle 175 to the air bladder 152 in the gas flow path L2. Specifically, as shown in fig. 32 to 34, the inner sleeve 140 includes: an inner case main body 141, and an extension portion 142 extending from the inner case main body 141 toward the air bag housing portion 150.

The inner housing body 141 is formed in a cylindrical shape. The inner sheath body 141 is formed with a hole 143 in which the liquid needle fixing portion 116 is rotatably disposed. As shown in fig. 34, a gas needle fixing portion 144 for fixing the gas needle 175 is formed on the lower surface of the inner sheath body 141 at a position radially aligned with the hole 143, for example. The gas needle fixing portion 144 is a hole for fixing the gas needle 175. The gas needle fixing portion 144 communicates with the gas flow path structure portion L5 of the gas flow path L2.

Extension 142 is connected to air bladder 152. The extension portion 142 is configured in a cylindrical shape protruding radially outward from the upper end portion of the outer peripheral surface of the inner housing main body 141, for example. As shown in fig. 2, the extension 142 has: a support portion 145 disposed in the hole 117a formed in the outline body main body 111 and supported by the hole 117a, and a fixing portion 146 disposed in the air bag housing portion 150 and fixing the air bag 152.

The support portion 145 is formed in a cylindrical shape having substantially the same inner diameter as the hole 117 a. The fixing portion 146 is formed in a cylindrical shape having a larger diameter than the support portion 145, for example. A flange 147 is formed at the front end of the fixing portion 146.

The fixing portion 146 is disposed on the upper side or the lower side with the center in the vertical direction of the airbag housing portion 150, for example. In the present embodiment, as an example, the fixing portion 146 is disposed above the air bag housing portion 150 with a center therebetween in the vertical direction.

As shown in fig. 2 and 33, the end surface 148 of the flange 147 is configured as a plane inclined to the vertical direction and the axial direction of the fixing portion 146 in a state where the inner sleeve 140 is attached to the contour body 110.

The inclined plane is a plane in which the lower end 148a of the end surface 148 is located on the side closer to the support portion 145 than the upper end 148b when the fixing portion 146 is disposed above the center in the vertical direction of the air bag housing portion 150. In other words, upper end 148b is located closer to the centerline of air bag housing 150 than lower end 148 a. Here, the center line is a line passing through the center of the airbag housing section 150 and parallel to the vertical direction.

The inclined plane is a plane in which the upper end 148b of the end surface 148 is located closer to the support portion 145 than the lower end 148a when the fixing portion 146 is disposed below the center in the vertical direction of the air bag housing portion 150. In other words, lower end 148a is located closer to the centerline of air bag housing 150 than upper end 148 b.

The thickness of the flange 147 gradually increases from the upper end 148b to the center in the vertical direction, and gradually decreases from the center to the lower end 148a in the vertical direction. The inner sleeve 140 having the above-described shape can be manufactured by injection molding by arranging a dividing line which is a boundary between the upper mold and the lower mold at the center position of the flange 147.

When the fixing portion 146 is configured to be located below the center in the vertical direction of the air bladder housing portion 150, the end surface 148 may be configured such that the lower end 148a is located on a plane closer to the center line of the air bladder housing portion 150 than the upper end 148 b.

As shown in fig. 2, the air bladder housing portions 150 are disposed at intervals in the direction orthogonal to the axial direction of the outline body 111 with respect to the outline body 111. In the present embodiment, the air bladder housing section 150 is disposed in parallel with the outline body main body 111 in the direction in which the two first guide grooves 126 are arranged. The airbag housing section 150 is formed in a box shape having a space section for housing the airbag 152 therein.

The air bag housing portion 150 is formed, for example, in a cylindrical shape, and the axis thereof is arranged parallel to the axis of the outline body 111. The upper end wall portion of air bag housing 150 is formed in a dome shape protruding upward, and upper surface 150a of the internal space of air bag housing 150 is also formed in a dome shape protruding upward. The upper surface 150a is formed in a shape protruding upward with its upper end positioned on the axis of the air bag housing 150, for example, in a bowl shape. The lower end wall portion of air bag housing 150 is formed in a dome shape protruding downward, and bottom surface 150b of the internal space of air bag housing 150 is also formed in a dome shape protruding downward. The bottom surface 150b is formed in a shape protruding downward with its lower end positioned on the axis of the air bag housing 150, for example, in a bowl shape.

The air bladder housing portion 150 is fixed to the outline body 111 by a connecting portion 151. Further, the air bladder housing portion 150 may be made of a transparent or translucent resin material, or an opening portion or a transparent window portion may be provided in a part of a wall surface of the air bladder housing portion 150, so that the shape of the air bladder 152 can be seen.

The air bag housing unit 150 and the connection unit 151 configured as described above can be configured by combining a plurality of members, for example. The air bag housing unit 150 is configured by fixing two structural members, for example. In the present embodiment, as shown in fig. 3 and 6, one of the structural members constituting the air bag housing portion 150 is formed integrally with a part of the connection portion 151 in one of the outline structural members 132. The other structural member constituting the air bag housing portion 150 is formed integrally with the other part of the coupling portion 151 in the other outline structural member 132. In other words, the two contour structure members 132 are fixed to each other, thereby constituting the contour body main body 111, the air bag housing portion 150, and the connection portion 151.

As shown in fig. 1, 3, and 27, the engaging member 160 is disposed, for example, partially in the hole 131. The engaging member 160 is engaged with the engaged portion 78 of the seal cap 70 in a state where the container connector 20 and the liquid flow path L1 and the gas flow path L2 are formed in the outline body main body 111. The engaging member 160 is configured to be released from engagement with the engaged portion 78 by an operation. The engaging member 160 is configured to be locked in engagement with the engaged portion 78. The engaging member 160 and the engaged portion 78 constitute a lock mechanism 160a that locks the engagement therebetween. For example, a plurality of the engaging members 160 are provided, and two engaging members are provided as a specific example. The two engaging members 160 are disposed at an interval of 180 degrees around the axial center of the profile body 111.

The engaging member 160 is a member that is long in the axial direction of the profile body main body 111. The engaging member 160 includes: an engaging portion 161 that engages with the engaged portion 78 of the seal cover 70, an operating portion 165 that is operated by an operator when the engagement between the engaging portion 161 and the engaged portion 78 is released, a deforming portion 166 that moves the engaging portion 161 in a direction in which the engagement with the engaged portion 78 is released by deformation, an attitude adjusting portion 167 that adjusts the attitude of the engaging portion 161, a fulcrum portion 168 that changes an operating force input to the operating portion 165 to a force that deforms the deforming portion 166, and a fixing portion 169 that fixes the engaging member 160 to the contour body main body 111.

The engaging portion 161 engages with the engaged portion 78 of the seal cap 70 in a state where the liquid flow path L1 and the gas flow path L2 are formed in the container connector 20 with the insert tool connector 100 inserted therein.

Specifically, the engaging portion 161 is a projection projecting inward in the radial direction of the profile body 111. The upper surface 162 of the engaging portion 161 and the lower surface of the engaged portion 78 abut against each other in the vertical direction, and thus the load when the container link 20 is pulled in the axial direction of the barrel portion 117, in other words, in the direction in which the container link 20 is pulled out from the tool link 100, that is, downward is received by the engaged portion 78. The upper surface 162 is formed as a plane orthogonal to the vertical direction, for example.

Lower surface 164 of engaging portion 161 abuts seal cover 70 when container connector 20 is inserted into tool connector 100. The lower surface 164 is formed as a guide surface for guiding the movement of the seal cover 70. Specifically, the lower surface 164 is configured as, for example, a curved surface extending upward and gradually inward of the profile body main body 111.

The operation portion 165 is formed above the engaging member 160. The operation portion 165 may be configured to be pressed inward by the operator in the radial direction of the cylindrical portion 117 of the profile body 111. In a state where the liquid flow path L1 and the gas flow path L2 are formed by inserting the container connector 20 into the instrument connector 100, the operation portion 165 has a gap S2 between the container connector 20 disposed in the cylindrical portion 117 and the radial direction of the cylindrical portion 117.

The gap S2 is a movement compensation amount of the operation portion 165 when the operation portion 165 is pressed inward of the profile body 111. Specifically, the operation portion 165 is formed in a shape inclined in a direction away from the profile body 111 in the radial direction.

The deformation portion 166 is provided between the engagement portion 161 and the fixing portion 169. The deformation portion 166 is provided continuously with the engagement portion 161 in the axial direction of the body portion 117, for example. When a force in a direction of extending the engaging portion 161 outward from the profile body 111 acts on the engaging portion 161, the deforming portion 166 bends to move the engaging portion 161 outward from the profile body 111. The deformation portion 166 is configured such that the engagement portion 161 is bent in the vertical direction in which the engagement with the engaged portion 78 can be released, to a position not facing the engaged portion 78.

Specifically, the deformation portion 166 is formed in a shape linearly extending in the vertical direction. The deformable portion 166 is thinner than the fixing portion 169 and the engaging portion 161, for example.

The posture adjustment section 167 is provided between the engagement section 161 and the operation section 165. The posture adjustment section 167 is provided continuously with the engagement section 161 in the axial direction of the barrel section 117, for example. In other words, the posture adjustment section 167 is formed between the engagement section 161 and a fulcrum section 168 described later. The posture adjustment portion 167 is configured to be able to hold the engagement portion 161 on a plane orthogonal to the vertical direction on the upper surface 162 by bending when a force in a direction of extending the engagement portion 161 outward from the profile body main body 111 acts on the engagement portion 161 and the engagement portion 161 moves from the profile body main body 111 by bending the deformation portion 166. The posture adjustment section 167 is thinner than the engagement section 161 and the operation section 165, for example.

The fulcrum 168 is provided between the operation unit 165 and the posture adjustment unit 167. In other words, the fulcrum portion 168 and the operation portion 165 are formed continuously in the axial direction of the body portion 117. The fulcrum portion 168 is in contact with a part of the tool link 100 in a state where the operation portion 165 is pressed toward the inside of the profile body 111, and thereby, a rotational moment in a direction in which the engaging portion 161 protrudes outward of the profile body 111 is generated with respect to a portion closer to the engaging portion 161 side than the fulcrum portion 168 by a lever action.

The fulcrum portion 168 is in contact with the stopper sleeve 230, for example. The fulcrum portion 168 is also in contact with the stopper 230, for example, in a state where the operation portion 165 is not pressed toward the inside of the outline body 111.

The fixing portion 169 is provided at the lower end of the engaging member 160, and fixes the engaging member 160 to the profile body 111. In other words, the fixing portions 169 of the two engaging members 160 are coupled to each other via the profile body 111 in the circumferential direction of the profile body 111.

The deformation portion 166 and the posture adjustment portion 167 of the engaging member 160 configured as described above have strength such that they do not bend and deform against a force in a direction in which the container link 20 is pulled out from the instrument link 100, which is assumed in normal use.

As shown in fig. 2, air bladder 152 is housed in air bladder housing portion 150. The air bladder 152 is formed of a resin material of a thin film that can be easily deformed as air enters and exits inside. The pressure in the container 1 can be adjusted by the deformation of the air bag 152. The air bag 152 has a volume equal to or larger than the volume of the cylinder 8 of the syringe 7.

Air bladder 152 is secured to end surface 148 of flange 147 of extension 142 of inner sleeve 140. Air bag 152 is secured to end surface 148, for example, by adhesive bonding. The air bag 152 communicates with the inside of the profile body 111 via the extension 142. In addition, air bladder 152 is stored in air bladder storage unit 150 in a folded state in an unused state. Fig. 2 shows air bag 152 in a folded state.

Since the end surface 148 of the gas needle fixing portion 144 of the inner case 140 is configured to be inclined in the vertical direction and the upper end 148b is positioned on a plane closer to the center of the air bladder housing portion 150 than the lower end 148a, the upper end of the air bladder 152 in the folded state is positioned on the center of the air bladder housing portion 150 than the lower end of the air bladder 152 in the folded state. Therefore, a sufficient space is provided between the upper end of air bladder 152 in the folded state and upper surface 150a of the internal space of air bladder housing unit 150.

Therefore, the upper end of air bladder 152 in the folded state does not abut against the upper surface of the internal space of air bladder housing unit 150. In other words, the end surface 148 of the inner case 140 is configured as a surface that can be disposed at a position where the upper end of the air bladder 152 in the folded state does not abut against the upper surface of the internal space of the air bladder housing portion 150, that is, at a position closer to the center side than the outer peripheral edge of the upper surface.

As shown in fig. 2, the liquid needle 170 is formed in a cylindrical shape. The upper end of the liquid needle 170 is housed in the liquid needle fixing section 116 and fixed to the liquid needle fixing section 116. The liquid needle 170 constitutes a part of the liquid flow path L1.

In the present embodiment, the liquid needle 170 is formed in a cylindrical shape with the lower end 171 closed. The lower end 171 is formed as a pointed tip. A hole 172 for communicating the inside and the outside of the liquid needle 170 is formed in the lower end portion of the outer peripheral surface 173 of the liquid needle 170.

The hole 172 is an example of an opening on the distal end side of the liquid needle 170. The hole 172 may be disposed on the peripheral surface of the lower end of the outer peripheral surface 173, for example. Alternatively, the hole 172 may be formed in a lower end portion of the liquid needle 170, i.e., a portion formed with a pointed tip. In short, the hole 172 may be disposed on the distal end side of the liquid needle 170.

The gas needle 175 is configured to be gas-flowable. The gas needle 175 has, for example, the same structure as the liquid needle 170. The gas needle 175 has the same function as the liquid needle 170, and the same reference numerals as the liquid needle 170 are used, and the description thereof is omitted. The end of the gas needle 175 is fixed to the gas needle fixing portion 144 of the inner case 140.

The vertical position of the hole 172 of the gas needle 175 is arranged at the same position as the vertical position of the hole 172 of the liquid needle 170. In the present embodiment, the vertical position of the lower end of the gas needle 175 is arranged at the same position as the vertical position of the lower end of the liquid needle 170. Thus, as will be described later, as the ferrule 180 moves within the contour 110, the gas needle 175 passes through the needle seal 200 at the same time as the liquid needle 170. Further, the hole 172 of the gas needle 175 intrudes into the container seal 90 at the same timing as the liquid needle 170.

The liquid needle 170 and the gas needle 175 have a length such that the lower ends of the liquid needle 170 and the gas needle 175 are disposed in the needle seal 200 in a state where the head cover 180 is disposed at the lower end of the movement range in the profile body 111. That is, the liquid needle 170 and the gas needle 175 have a length such that the holes 172 are arranged in the needle seal 200 and the holes 172 are sealed by the needle seal 200.

As shown in fig. 1, 2, and 3, the head cover 180 is formed in a cylindrical shape movable in the profile body main body 111. As shown in fig. 35 to 40, the head cover 180 includes a head cover main body 181 and a second guide protrusion 182. The head cover main body 181 is formed in a cylindrical shape, for example, to be movably fitted to the inner peripheral surface of the cylindrical portion 117.

The head cover main body 181 is formed in a cylindrical shape movably fitted to the inner peripheral surface of the inner sleeve 140. A first arm receiving recess 185 for receiving a part of a first arm 231 described later of the stopper sleeve 230 and a second arm receiving recess 186 for receiving a part of a second arm 232 described later of the stopper sleeve 230 are formed in a lower end portion of an outer peripheral surface 183 of the head cover main body 181.

The first arm-receiving recess portion 185 is configured in such a shape that a part of the outer peripheral surface 183 is recessed radially inward. The first arm receiving recess 185 is formed such that the radial depth thereof gradually increases from the lower end to the upper end. The first arm receiving recess 185 is formed in plural, for example. In the present embodiment, two first arm receiving recesses 185 are formed. The two first arm receiving recesses 185 are disposed 180 degrees apart in the circumferential direction of the head cover main body 181.

The second arm receiving recess 186 is configured such that a part of the outer peripheral surface 183 is recessed radially inward. The second arm receiving recess 186 is formed such that the depth in the radial direction thereof gradually increases from the lower end to the upper end. The second arm receiving recess 186 is formed in plural, for example. In the present embodiment, two second arm receiving recesses 186 are formed. The two second arm portion accommodating recesses 186 are disposed at positions separated by 90 degrees in the circumferential direction of the head cover main body 181 with respect to the first arm portion accommodating recesses 185.

A fixing protrusion receiving recess 187 for receiving a fixing protrusion 236 of the stopper 230, which will be described later, is formed at a lower end portion of the outer circumferential surface 183. The fixing protrusion accommodating recess 187 is formed in a shape in which a part of the outer peripheral surface 183 is recessed radially inward.

The fixing protrusion receiving recess 187 includes: an inlet portion 188 that opens to the lower end of the head cover main body 181 and through which the fixing protrusions 236 pass when the stopper 230 is fixed to the head cover 180, and a holding portion 189 that extends in the circumferential direction of the head cover main body 181 and holds the fixing protrusions 236 that enter through the inlet portion 188. The holding portion 189 communicates with the inlet portion 188 and is formed above the inlet portion 188. The holding portion 189 is formed to be longer than the inlet portion in the circumferential direction of the head cover main body 181.

A plurality of fixing projection receiving recesses 187 are formed in this manner. Four fixing protrusion receiving recesses 187 are formed in the present embodiment. The four fixing protrusion receiving recesses 187 are arranged at equal intervals in the circumferential direction of the head cover main body 181, and communicate with the first arm receiving recess 185 or the second arm receiving recess 186, respectively.

The second guide projection 182 is formed at an axial middle portion of the outer circumferential surface 183. The second guide projection 182 is received in the second guide groove 127 of the body portion 117. The second guide projection 182 is formed movably in the second guide groove 127.

The second guide projection 182 is formed in plural, for example. In the present embodiment, two second guide projections 182 are formed. The two second guide protrusions 182 are disposed at positions separated by 45 degrees in the circumferential direction of the head cover 180 with respect to the first arm housing recess 185. The second guide projection 182 is formed in a rectangular parallelepiped shape, for example. The two second guide protrusions 182 have different height positions from the lower end of the head cover main body 181. Specifically, one of the second guide projections 182 is disposed on the upper end side of the head cover main body 181, and the other second guide projection 182 is disposed on the lower end side of the head cover main body.

As shown in fig. 38 to 40, a partition 191 is formed on the inner peripheral surface 190 of the head cover body 181. The partition 191 divides the internal space of the headgear body 181 into two in the vertical direction. The partition 191 is formed at a middle portion in the axial direction of the inner circumferential surface 190. The partition 191 is formed in a wall shape protruding inward from the inner circumferential surface 190. The partition 191 is formed with a hole 192 in which a part of the needle seal 200 is disposed. The hole 192 is formed in an elliptical shape, for example.

A guide 194 for guiding the movement of the liquid needle 170 and the gas needle 175 with respect to the needle seal 200 is provided on the upper surface 193 of the partition 191. The guide 194 has: a guide body 195, and a support portion 196 that supports the guide body 195 on the upper surface 193.

The guide body 195 is, for example, formed in a rectangular parallelepiped shape, and includes: a hole 197 for disposing a part of the liquid needle 170 fixed to the liquid needle fixing part 116, and a hole 198 for disposing a part of the gas needle 175 fixed to the gas needle fixing part 144. The holes 197 and 198 penetrate the guide body 195.

Hole 197 is formed as a hole through which liquid needle 170 is relatively movable with respect to head cover 180. Specifically, the inner diameter of the hole 197 is set to be larger than the outer diameter of the liquid needle 170 by the extent to which the liquid needle 170 can move. Further, the upper end portion of the hole 197 is formed as a hole having a diameter enlarged toward the upper end.

The hole 198 is formed as a hole through which the gas needle 175 is relatively movable with respect to the head cover 180. Specifically, the inner diameter of the hole 198 is set to a diameter larger than the outer diameter of the gas needle 175 by the extent to which the gas needle 175 can move. The upper end of the hole 198 is formed as a hole having a diameter enlarged toward the upper end.

As shown in fig. 38, the support portion 196 is formed on each of both sides with the hole 192 interposed therebetween. The support portion 196 is formed in a columnar shape extending in the axial direction. The support portion 196 is fixed to the guide body 195. The support 196 fixes the guide body 195 at a position where the holes 197 and 198 axially face the hole 192 of the partition 191 with a gap from the upper surface 193.

As shown in fig. 27, the needle seal 200 is secured to the bore 192. The needle seal 200 is formed of a resin such as rubber or an elastomer, and is formed by sealing the holes formed by the liquid needle 170 and the gas needle 175 in a liquid-tight and gas-tight manner by a restoring force after the liquid needle 170 and the gas needle 175 move.

Specifically, the needle seal 200 includes: a first portion 201 disposed on one side of the hole 192 on the guide body 195 side with the partition 191 interposed therebetween, a second portion 202 disposed in the hole 192, and a third portion 203 disposed on the other side with the partition 191 interposed therebetween.

The first portion 201 is formed in a columnar shape, for example, an ellipse, which is in contact with the lower surface of the guide body 195 and the two support portions 196. On the upper surface of the first portion 201, for example, a concave portion is formed as an object for inserting each of the liquid needle 170 and the gas needle 175 at the time of assembling operation of the instrument connector 100. The first portion 201 is formed in a shape having a cross section orthogonal to the axial direction larger than a cross section orthogonal to the axial direction of the second portion 202.

The second portion 202 is formed into an elliptical cylinder shape that fits into the hole 192.

The third portion 203 is formed, for example, in a cylindrical shape. The third portion 203 has a larger cross section orthogonal to the axial direction than the cross section orthogonal to the axial direction of the second portion 202. The lower end surface 204 of the third portion 203 is configured to abut against the upper end surface 95 of the container seal 90 to seal the upper end surface 95.

As shown in fig. 3, the stopper sleeve 230 is fixed to the outer circumferential surface of the head cover 180. The stop sleeve 230 selectively limits movement of the head sleeve 180 relative to the contoured body 110 and may be formed to selectively secure the head sleeve 180 to the seal cap 70.

As shown in fig. 41 to 43, specifically, the stopper sleeve 230 includes: a first arm 231 formed to be engageable with the locking projection 128 of the cylindrical body 117, a second arm 232 engageable with the locking recess 77 of the seal cap 70, and a coupling portion 233 coupling the first arm 231 and the second arm 232.

As shown in fig. 48 and 49, the first arm 231 is formed so as to be engageable with the locking projection 128 in a state where the head cover 180 is positioned at the lower end portion in the contour body 110. The first arm 231 is engaged with the locking projection 128, thereby preventing the head cover 180 from moving upward in the profile body 110.

Specifically, as shown in fig. 41, 48, and 49, the first arm 231 is formed in a plate shape that is long in the axial direction of the head cover 180 in a state where the outer peripheral surface of the head cover 180 is fixed. A fixing protrusion 236 is formed at the center of a surface 235 of the first arm 231 facing the head cover 180. The upper end surface of the first arm 231 and the locking projection 128 are formed so as to be contactable from below to above. The upper end face is formed, for example, as a plane.

A first arm protrusion 237 is formed at a lower end of the surface 235 of the first arm 231. The lower end surface 238 of the first arm portion protrusion 237 is formed to be in contact with the upper end portion 72a formed on the conical surface of the outer peripheral surface of the seal cover intermediate diameter portion 72 of the seal cover 70. The lower end surface 238 is formed as an inclined surface inclined with respect to the axis of the head cover 180 in a state where the stopper 230 is fixed to the head cover 180.

The first arm portion protrusion 237 is formed by abutting the lower end surface 238 against the upper end portion 72a formed on the conical surface of the outer peripheral surface of the seal cover intermediate diameter portion 72, and rotating the first arm portion 231 to move the upper end surface toward the head cover 180, thereby releasing the engagement between the first arm portion 231 and the locking protrusion 128. A plurality of first arm protrusions 237 are formed, for example. In the present embodiment, two first wrist protrusions 237 are formed. The first arm 231 is formed in plural, for example. In the present embodiment, two first arm portions 231 are formed.

As shown in fig. 41, 50, and 51, the second arm portion 232 is formed to engage with the seal cap 70, and to fit the seal cap small diameter portion 73 into the ferrule 180, so that the upper end surface 95 of the container seal 90 and the lower end surface 204 of the third portion 203 of the needle seal 200 are maintained in close contact with each other.

As shown in fig. 41, specifically, the second arm portion 232 is formed in a plate shape that is long in the axial direction of the head cover 180 in a state where the outer peripheral surface of the head cover 180 is fixed. A second arm protrusion 240 engageable with the locking recess 77 of the seal cap 70 is formed at the lower end of the surface 239 of the second arm 232 on the side of the head cover 180.

The upper surface 241 of the second arm protrusion 240 is formed to be engageable with the locking recess 77 of the seal cover 70. The lower end surface 242 of the second arm protrusion 240 is formed as an inclined surface inclined with respect to the axis of the head cover 180 in a state where the stopper 230 is fixed to the head cover 180.

A fixing protrusion 236 is formed at the center of the surface 239. A surface 243 of the second arm portion 232 on the side opposite to the head cover 180 may be formed to abut against the lock release protrusion 129 of the body portion 117.

Specifically, the second arm portion 232 has a substantially trapezoidal cross section in which the circumferential center portion of the surface 243 protrudes outward. The circumferential center portion 243a of the surface 243 is formed in contact with the lock release protrusion 129. The central portion 243a is formed by abutting the lock releasing projection 129 and rotating the second arm portions 232 to separate the second arm portion projection 240 from the head cover 180, thereby moving the second arm portion projection 240 to the outside of the lock recess 77 and releasing the engagement between the second arm portion projection 240 and the lock recess 77. The second arm 232 is formed in plural, for example. In the present embodiment, two second arm portions 232 are formed.

As shown in fig. 48, in a state where the head cover 180 is disposed below the contour body 111 and the first arm portions 231 are engaged with the locking projections 128, the second arm portions 232 formed in this manner are rotated to a position where the engagement with the locking recesses 77 of the seal cover 70 is released by abutting the middle portions (the portions projecting most inward in the radial direction of the cylindrical body 117) of the locking release projections 129 in the axial direction of the cylindrical body 117 against the upper portions of the central portions 243a of the surfaces 243 as shown in fig. 50.

Further, when the stopper 230 is moved upward, the second arm portions 232 are moved upward relative to the lock releasing projection 129, and thereby, the middle portions of the most protruding portions of the lock releasing projection 129 are brought into contact with the lower end portions of the center portions 243a of the surfaces 243 of the second arm portions 232.

The second arm portion 232 is formed such that the second arm portion protrusion 240 is rotatable to a position where it engages with the lock recess 77 of the seal cap 70 by the restoring force of the lock releasing protrusion 129 and the coupling portion 233 abutting against the lower end portion thereof.

The coupling portion 233 couples the first arm 231 and the second arm 232. As shown in fig. 1 and 3, the coupling portion 233 abuts against the fulcrum 168 of the engaging member 160. The coupling portion 233 is flexible, and is formed so as to be able to rotate the first arm portion 231 and the second arm portion 232 by twisting. The coupling portion 233 positions the first arm portion 231 at a position where it can engage with the locking projection 128 in a state where no external force is applied to the first arm portion 231. The coupling portion 233 positions the second arm portion 232 at a position where it can engage with the lock recess 77 of the seal cover 70 without applying an external force to the second arm portion 232.

The stopper 230 configured as described above is formed in a ring shape in which the first arm portions 231 and the second arm portions 232 are alternately arranged in the circumferential direction. The first arm 231 and the second arm 232 are disposed at an interval in the circumferential direction.

The stopper 230 configured as described above is inserted into the retaining portion 189 from the entrance portion 188 of the fixing protrusion receiving recess 187 of the head cover main body 181 in the axial direction of the head cover main body 181, and then rotated by a predetermined angle in the circumferential direction. By this rotation, the fixing projection 236 is not arranged in parallel with the inlet portion 188, and therefore, is not pulled out from the inlet portion 188. Thus, the retaining sleeve 230 is secured to the head sleeve 180.

As described above, in the state where the fixing projection 236 is accommodated in the holding portion 189, the first arm portion 231 faces the first arm portion accommodating recess portion 185, and the second arm portion 232 faces the second arm portion accommodating recess portion 186.

Since the first arm portion 231 faces the first arm portion accommodating recess portion 185, a part of the upper portion of the first arm portion 231 is accommodated in the first arm portion accommodating recess portion 185 during rotation. That is, since the first arm section accommodating recess 185 is a part of the movement compensation amount when the first arm section 231 rotates, the first arm section 231 can rotate to a position where the engagement of the upper end thereof with the locking projection 128 is released. Since the second arm portion 232 faces the second arm portion housing recess 186, a part of the upper portion of the second arm portion 232 is housed in the second arm portion housing recess 186 during rotation. That is, since the second arm section accommodating recess 186 serves as a part of the movement compensation amount when the second arm section 232 is rotated, the second arm section 232 can be rotated to a position where the engagement between the second arm section protrusion 240 and the locking recess 77 is released.

As shown in fig. 2, the biasing member 250 is housed in the profile body 111 and configured to bias the head cover 180 downward. Specifically, the biasing member 250 is housed in the head cover 180 above the partition 191. The urging member 250 is, for example, a coil spring. One end of the urging member 250 abuts against the inner case 140. The other end of the biasing member 250 abuts against the partition 191. The biasing member 250 has a structure in which the head cover 180 is compressed while being positioned at the lowermost end of the moving range of the profile body 111.

Further, a biasing portion 118 is formed in the cylindrical portion 117 of the profile body main body 111. The biasing portion 118 is configured to be capable of pressing the second arm portion 232 of the stopper sleeve 230 engaged with the locking recess 77 of the seal cover 70 in the engagement direction with the locking recess 77. That is, the biasing portion 118 can be configured to strongly engage the second arm portion 232 with the locking recess 77 by biasing the second arm portion 232.

Specifically, the biasing portion 118 is provided at the edge of the hole 117a in the cylindrical body portion 117, and the hole 117a is formed at a position facing the second arm portion 232 of the stopper 230 in the state of being disposed at the lower end.

Next, the operation of connecting the container coupler 20 to the container 1 will be described.

Next, an example of the operation of connecting the container connector 20 to the container 1 will be described with reference to fig. 11. Fig. 12 shows a state where the container connector 20 is cut along the second virtual plane P2. In fig. 11, the base 41, the needle member 60, and the seal cap 70 are omitted from the container connector 20.

First, as shown in fig. 11, the operator places the container 1 on the work table 9. When the operator places the container 1 on the work table 9, the tip of the needle portion 62 of the needle member 60 abuts against the center of the upper surface of the stopper 6 of the container 1. When the operator abuts the tip of the needle portion 62 against the center of the upper surface of the stopper 6, the operator moves the container connector 20 toward the container 1, thereby pressing the needle portion 62 into the container 1.

When the needle portion 62 is pushed into the container 1 by a predetermined amount, the container connector 20 causes the guide surface 54 of each of the two engaging portions 43 to contact the outer peripheral portion of the flange 5 of the container 1. Since the guide surface 54 is formed in a V shape, the guide surface 54 abuts the flange 5 at two positions. Thus, the container connection 20 abuts the container 1 through four points.

When the operator brings the guide surface 54 of each of the two engaging portions 43 into contact with the flange 5 of the container 1, the operator further pushes the container connector 20 downward. When the container connector 20 is further pushed downward, the two engaging portions 43 are forced in a direction away from the axis C3 of the circle X from the tangent point a with the container 1. This force is a component acting in a direction orthogonal to the axis C3 of the circle X, among the reaction received from the flange 5 of the container 1 by pressing the container connection member 20 downward.

Since the two engagement portions 43 are each urged in a direction away from the axis C3 of the circle X, the two arm portions 42 are each bent. Since the arm portions 42 are bent, the engagement portion 43 moves in a direction away from the axis C3 mainly about the folded portion 51 of the arm portion 42. By this movement, the two engaging portions 43 expand, and thereby the posture of the engaging portion 43 with respect to the axis C3 of the circle X changes.

Even if the posture of the engagement portion 43 changes, the amount of increase in the inclination angle α of the tangent S to the tangent point a to the first virtual plane P1 of the four guide surfaces 54 from the time point when the operation of pushing the container adapter 20 into the container 1 is started is small. Thus, the operator can press in the container connection 20 with a substantially constant force.

When the container adapter 20 is pushed into the container 1 to a predetermined position, each of the two engaging portions 43 is pushed open to a position where the abutting portion 53 of each of the two engaging portions 43 comes into contact with the outer peripheral edge of the flange 5 of the container 1.

When the container link 20 is further pressed downward, the abutting portion 53 of each of the two engaging portions 43 comes into contact with the outer peripheral surface of the flange 5 of the container 1. When the container coupler 20 is further pushed downward, the contact portions 53 of the two engagement portions 43 move the outer peripheral surface of the flange 5 of the container 1 downward.

When the contact portion 53 of each of the two engagement portions 43 moves to a position facing the neck portion 4 of the container 1 as the container link 20 is further pushed downward, each of the two engagement portions 43 moves toward the neck portion 4 by the restoring force of the arm portion 42, and the contact portion 53 contacts the neck portion 4. Since the engaging portion 43 has a V-shaped cross section perpendicular to the axis C3, the contact portion 53 contacts the neck portion 4 at two points. That is, the neck portion 4 abuts against the neck portion 4 via the abutting portions 53 supported at four points, and the engaging portion 43 engages with the neck portion 4.

Next, an operation of connecting the instrument connector 100 to the container connector 20 and forming the liquid flow path L1 and the gas flow path L2 will be described with reference to fig. 48 to 54. In fig. 48 to 54, the configuration other than the first arm portion 231 and the second arm portion 232 is partially omitted or simplified.

As shown in fig. 48, in a state where the tool link 100 is not connected to the container link 20, the head cover 180 is located at a lower end portion in the contour body 110. The first arm 231 of the stopper 230 engages with the locking projection 128. As shown in fig. 50, the second arm portions 232 of the stopper 230 abut against the lock release protrusions 129 of the cylindrical body 117, and the second arm portion protrusions 240 rotate to positions where engagement with the lock recess 77 of the seal cap 70 is released. A portion of the second arm 232 is received in the second arm receiving recess 186 of the headgear 180.

Further, the portion of the liquid needle 170 where the hole 172 is formed and the portion of the gas needle 175 where the hole 172 is formed are disposed in the needle seal 200. That is, the hole 172 of the liquid needle 170 and the hole 172 of the gas needle 175 are sealed by the needle seal 200, and are hermetically and liquid-tightly sealed.

Next, as shown in fig. 49 and 50, the seal cap small diameter portion 73 of the seal cap 70 is inserted into the ferrule 180. Until the upper end surface 95 of the container seal 90 comes into close contact with the lower end surface 204 of the needle seal 200, the lower end surface 238 of the first arm protrusion 237 of the first arm 231 of the stopper 230 abuts against the upper end portion 72a formed of a conical surface on the outer peripheral surface of the seal cap intermediate diameter portion 72. The upper end surface 95 of the container seal 90 formed into a curved surface is pressed by the lower end surface 204 of the needle seal 200 to be deformed, and is brought into close contact with the lower end surface 204.

As shown in fig. 49, when the instrument link 100 is further lowered from this state, the first wrist protrusion 237 is guided by the upper end portion 72a and moves radially outward. As the first arm portion protrusion 237 moves radially outward, the first arm portion 231 rotates. The first arm 231 is guided by the upper end portion 72a formed as a conical surface and rotated to a position where engagement with the locking projection 128 is released in a state where the upper end surface 95 of the container seal 90 is in close contact with the lower end surface 204 of the needle seal 200. At this time, a part of the first arm 231 is received in the first arm receiving recess 185 of the head cover 180. Since the engagement between the first arm 231 and the locking projection 128 is released, the head cover 180 is movable upward in the profile body 111.

At this time, as shown in fig. 50, when the instrument connector 100 is lowered until the upper end surface 95 of the container seal 90 comes into close contact with the lower end surface 204 of the needle seal 200, the second arm protrusion 240 faces the locking recess 77.

When the tool attachment 100 is further lowered, the container attachment 20 moves upward in the profile body main body 111 integrally with the head cover 180. When the needle cover 180 moves upward in the contour body 111, the liquid needle 170 and the gas needle 175 move downward relative to the needle seal 200.

When the tool link 100 is further lowered, the container link 20 and the head cap 180 are further moved upward in the contour body 111, and the liquid needle 170 and the gas needle 175 penetrate the needle seal 200 to pierce the container seal 90. The liquid needle 170 and the container packing 90 are sealed in a liquid-tight and air-tight manner by the container packing 90 being in close contact with the liquid needle 170. Likewise, the gas needle 175 is sealed from the container seal 90 by the container seal 90 being in close contact with the gas needle 175.

In a state where the liquid needle 170 and the gas needle 175 penetrate the needle seal 200, the second arm 232 moves upward relative to the lock release protrusion 129. In the process of moving the second arm portion 232 upward relative to the lock releasing projection 129, the contact position of the middle portion 243a of the surface 243 of the second arm portion 232 that is the most projecting middle portion of the lock releasing projection 129 in the radial direction of the profile body main body 111 moves downward. Since the contact position is moved downward, the urging force that urges the second arm protrusion 240 outward in the radial direction of the profile body main body 111 is reduced.

As shown in fig. 51, in a state where the liquid needle 170 and the gas needle 175 penetrate the needle seal 200, the second arm portion 232 comes into contact with the lock release projection 129 of the cylinder portion 117 to release the biasing force toward the radially inner side, and the second arm portion projection 240 is engaged with the lock recess 77 by the elastic force (restoring force) of the coupling portion 233 and the contact of the second arm portion projection 240 with the lower end portion of the second arm portion 232 to rotate. That is, the stopper 230 and the sealing cap 70 are fixed to each other before the liquid needle 170 penetrates the needle seal 200.

As shown in fig. 51, in a state where the second arm portion protrusion 240 of the second arm portion 232 is engaged with the locking recess 77, as shown in fig. 52, the first arm portion protrusion 237 of the first arm portion 231 is maintained in a state of being in contact with the outer peripheral surface of the seal cover intermediate diameter portion 72 of the seal cover 70.

As shown in fig. 2, when the instrument connector 100 is further lowered, the liquid needle 170 and the gas needle 175 penetrate the container seal 90, the hole 172 of the liquid needle 170 is disposed in the liquid flow path structure portion L3, and the hole 172 of the gas needle 175 is disposed in the gas flow path structure portion L4.

Since the hole 172 of the liquid needle 170 is disposed in the L3, the liquid flow path structure portion L3 of the container connection piece 20 communicates with the liquid needle 170. Since the liquid flow path structure portion L3 communicates with the liquid needle 170, a liquid flow path L1 is formed. Since the hole 172 of the gas needle 175 is disposed in the L4, the gas flow path structure portion L4 of the container connection member 20 communicates with the gas needle 175. Since the gas flow path structure portion L4 communicates with the gas needle 175, a gas flow path L2 is formed.

As shown in fig. 53 and 54, when the tool link 100 is further lowered, the first guide projection 75 abuts on the upper end of the first guide groove 126. The second guide projection 182 abuts on the upper end of the second guide groove 127. The abutment described above restricts the movement of the ferrule 180 and the container connector 20 in the profile body 111. That is, the appliance connecting member 100 is lowered to a so-called bottomed state.

The operator is lowered to the bottom by the instrument connector 100, and recognizes that the liquid flow path L1 and the gas flow path L2 have been formed. When the tool connector 100 is lowered to the bottom, the operator operates the syringe 7 to collect the medical fluid from the container 1. The chemical liquid is moved from the container 1 to the syringe 7 through the liquid flow path L1.

Next, the operation of separating the container link 20 from the tool link 100 will be described. When the operator separates the container connector 20 from the tool connector 100, the operator presses the operation portion 165 of the engaging member 160 radially inward to a position where the engagement between the engaging portion 161 and the engaged portion 78 of the seal cap 70 is released.

The operator then lifts implement attachment 100. The head cover 180 is secured to the seal cap 70 by a second wrist 232 of the stop sleeve 230. Therefore, when the tool link 100 is lifted, the contour body 110, the liquid needle 170, and the gas needle 175 move upward with respect to the needle cover 180 and the needle seal 200.

The contour body 110, the liquid needle 170, and the gas needle 175 move upward relative to the head cover 180 and the needle seal 200, and thus the liquid needle 170 and the gas needle 175 move upward in the container seal 90. When the instrument connector 100 is lifted a prescribed distance, the liquid needle 170 and the gas needle 175 are pulled out from the container seal 90. The container seal 90 seals the hole formed by the liquid needle 170 and the gas needle 175 in a liquid-tight and air-tight manner by a restoring force. In addition, the hole 172 of the liquid needle 170 is sealed by the needle seal 200. The bore 172 of the gas needle 175 is sealed by a needle seal 200.

When the instrument connector 100 is further lifted a predetermined distance after the liquid needle 170 and the gas needle 175 are removed from the container seal 90, the second arm portions 232 are rotated by the lock release protrusion 129 of the cylindrical body portion 117, whereby the second arm portion protrusions 240 of the second arm portions 232 move radially outward from the lock recesses 77, and the engagement between the second arm portion protrusions 240 and the lock recesses 77 is released. That is, the fixation of the stopper 230 to the seal cover 70 is released.

In this state, the portion of the liquid needle 170 where the hole 172 is formed and the portion of the gas needle 175 where the hole 172 is formed are housed in the needle seal 200, and both the holes 172 are sealed by the needle seal 200. The needle seal 200 seals the hole formed by the liquid needle 170 and the gas needle 175 in a liquid-tight and air-tight manner by a restoring force.

The hole 172 of the liquid needle 170 and the hole 172 of the gas needle 175 protrude from the container seal 90 at the same timing and are accommodated in the needle seal 200 at the same timing.

Thus, liquid flow path L1 is divided, liquid needle 170 as a portion formed in instrument connector 100 in liquid flow path L1 is sealed, and liquid flow path structure portion L3 as a portion formed in container connector 20 in liquid flow path L1 is sealed.

Similarly, the gas flow path L2 is divided, the gas needle 175 as a portion formed in the instrument connector 100 in the gas flow path L2 is sealed, and the gas flow path structure portion L4 as a portion formed in the container connector 20 in the gas flow path L2 is sealed.

When the tool link 100 is further lifted after the fixation of the seal cap 70 to the head cover 180 is released, the seal cap 70 moves downward with respect to the first arm 231 of the stopper 230. Since the seal cover 70 moves downward with respect to the first arm 231, the biasing force of the first arm 231 by the outer peripheral surface of the seal cover 70 is released.

When the biasing force from the outer peripheral surface of the seal cap 70 is released, the first arm 231 rotates by the elastic force (restoring force) of the coupling portion 233. The upper end of the first arm 231 is disposed below the locking projection 128 by rotation. That is, the first arm 231 is engageable with the locking projection 128.

Since the first arm 231 is in a state of being engageable with the locking projection 128, the movement of the head cover 180 from a state in which the liquid needle 170, which is a portion formed in the instrument connector 100 in the liquid flow path L1, is sealed, that is, the hole 172 is sealed by the needle seal 200, and from a state in which the gas needle 175, which is a portion formed in the instrument connector 100 in the gas flow path L2, is sealed, that is, the hole 172 is sealed by the needle seal 200, can be prevented.

Next, the operation of the engaging member 160 during the connecting operation of the tool link 100 and the container link 20 will be described with reference to fig. 44 to 46.

As shown in fig. 44, when the container connector 20 is inserted into the tool connector 100 as shown in fig. 45 in a state where the container connector 20 is never inserted into the tool connector 100, the engaged portion 78 of the seal cover 70 contacts the lower surface 164 of the engaging portion 161.

As container coupling member 20 is further inserted into implement coupling member 100, sealing cover 70 moves on lower surface 164. As shown in fig. 46, when the container connector 20 is inserted into the instrument connector 100, the engaging portion 161 goes over the engaged portion 78. Since the engaging portion 161 goes beyond the engaged portion 78, the upper surface 162 of the engaging portion 161 and the lower surface 79 of the engaged portion 78 face each other in the vertical direction, and the upper surface 162 and the lower surface 79 contact each other, whereby the engaging member 160 is engaged with the engaged portion 78. In a state where the engaging portion 161 is engaged with the engaged portion 78, the fulcrum 168 abuts against the coupling portion 233 of the stopper sleeve 230. Since the engaging member 160 is engaged with the engaged portion 78, the container link 20 is fixed in a state of being connected to the appliance link 100.

Next, the operation of the engaging member 160 when the container adapter 20 is separated from the instrument adapter 100 will be described with reference to fig. 47.

The operator presses the operation portion 165 toward the inside of the profile body 111. Since the operating portion 165 is pressed inward of the profile body 111, a moment acting in a direction of extending the engaging portion 161 from the profile body 111 is generated in a portion of the engaging member 160 located below the fulcrum portion 168.

As shown in fig. 47, the deformation portion 166 is bent by the moment, and the engagement portion 161 is moved to a position where the engagement with the engaged portion 78 is released. Further, due to this moment, the posture adjusting portion 167 bends, and thereby the upper surface 162 of the engaging portion 161 is still held in a posture orthogonal to the vertical direction, and the engaging portion 161 is moved to a position where the engagement with the engaged portion 78 is released. When the engaging portion 161 moves to a position not opposed to the engaged portion 78 in the vertical direction, the engagement between the engaging portion 161 and the engaged portion 78 is released.

The engaging member 160 of the instrument connector 100 configured as described above has a structure in which the operation portion 165 is disposed on the opposite side of the fixing portion 169 via the engaging portion 161. Therefore, when the container connector 20 is attempted to be pulled out from the instrument connector 100, the engaging portion 161 is pressed by the engaged portion 78, and thereby a rotational moment acting in a direction in which the engaging member 160 is inclined inward of the profile body main body 111 about the fixing portion 169 is generated.

The rotational moment biases the engaging portion 161 in a direction opposite to a moving direction for releasing the engagement with the engaged portion 78. Therefore, even if a force is applied in a direction in which the container connector 20 is pulled out from the instrument connector 100, the engagement between the engaging portion 161 and the engaged portion 78 is not released. Further, since the engaging member 160 has the fulcrum portion 168 abutting against the container link 20 between the engaging portion 161 and the operating portion 165 and the deforming portion 166 between the fixing portion 169 and the engaging portion 161, it can be configured to operate by an operation of pressing the operating portion 165 toward the inside of the profile body 111. Therefore, the operator can press only the operation portion 165 when operating the operation portion 165. Therefore, the operability of the operation unit 165 can be improved.

Thus, the engagement member 160 can improve operability and prevent unlocking due to pulling.

Further, since the engaging member 160 has the posture adjusting portion 167, the upper surface 162 of the engaging portion 161 does not incline when the engagement between the engaging portion 161 and the engaged portion 78 is released. Therefore, the engaging portion 161 can be smoothly moved with respect to the engaged portion 78. As a result, the operating force applied to the operating portion 165 for releasing the engagement between the engaging portion 161 and the engaged portion 78 can be reduced.

Further, since the head cover 180 has the guide 194, when the liquid needle 170 and the gas needle 175 are inserted into the needle seal 200 during the assembly of the tool attachment 100, the inclination of the needles 170 and 175, such as the displacement of the needles 170 and 175 in the axial direction of the needles 170 and 175 with respect to the insertion direction of the needle seal 200, can be prevented. As a result, since it is possible to prevent a gap from being generated between the needle seal 200 and the needles 170 and 175, it is possible to prevent the sealability between the needle seal 200 and the needles 170 and 175 from being lowered.

The outer diameter of the first fitting portion 96 is set to be larger than the inner diameter of the opening of the liquid flow path structure portion L3, and the outer diameter of the second fitting portion 97 is set to be larger than the inner diameter of the opening of the gas flow path structure portion L4. Therefore, the first fitting portion 96 and the second fitting portion 97 are compressed radially inward in a state where the opening of the liquid flow path structure portion L3 and the opening of the gas flow path structure portion L4 are arranged. As a result, the pressure from the first fitting portion 96 and the second fitting portion 97 generated on the surfaces of the needles 170 and 175 increases. Therefore, when the needles 170 and 175 are pulled out of the container seal 90, the chemical liquid adhering to the surfaces of the needles 170 and 175 is wiped by the first fitting portion 96 and the second fitting portion 97, thereby preventing the chemical liquid from leaking out of the container seal 90.

The end surface 148 of the flange 147 of the inner case 140 is configured as an inclined surface in which the upper end 148b of the end surface 148 is disposed on the center side of the air bag housing portion 150 with respect to the lower end 148 a. Therefore, a gap between the upper end of air bladder 152 and upper surface 150a inside air bladder housing unit 150 can be widely secured. As a result, since contact with the upper surface of the inside of air bladder housing portion 150 can be prevented when air bladder 152 is inflated, air bladder 152 can be prevented from falling off end surface 148 of flange 147.

Further, the upper surface of the internal space of air bladder housing unit 150 is formed in a dome shape protruding upward, and thus the gap between the upper end of air bladder 152 in the folded state and the upper surface of the internal space of air bladder housing unit 150 can be increased.

In the case where the fixing portion 146 is disposed below the center in the vertical direction of the air bladder housing portion 150, the end surface 148 has a lower end 148a of the end surface 148 disposed on the centerline side of the air bladder housing portion 150 with respect to an upper end 148 b. In this configuration, a wide gap can be ensured between the lower end of air bladder 152 and bottom surface 150b of the internal space of air bladder housing unit 150. As a result, when air bladder 152 inflates, it is possible to prevent air bladder 152 from coming into contact with bottom surface 150b of the internal space of air bladder housing portion 150, and therefore, air bladder 152 can be prevented from falling off end surface 148 of flange 147.

As shown in fig. 6, the guide surface 54 of the engagement portion 43 of the container connector 20 is formed in a fan shape when viewed from below, in other words, the other end edge 56 of the guide surface 54 is formed in a shape that the flange 5 having the largest diameter is supposed to abut against. Therefore, the maximum value of the outer diameter of the flange 5 of the container 1 to which the container connection member 20 can be fixed can be increased, and the size of the engaging portion 43 can be suppressed from increasing.

This effect will be specifically described.

Since the other end edge 56 of the guide surface 54 is configured in a shape that the flange 5 having the largest diameter is supposed to abut against, the length along the axis C3 from the abutting portion 53 to the lower end of the guide surface 54 can be prevented from increasing. In other words, by increasing the circumferential length of the axis C3 at the lower end of the guide surface 54, the maximum value of the diameter of the flange 5 of the connectable container 1 can be increased.

Further, since the length of the one end of the guide surface 54 on the side of the contact portion 53, in other words, the upper end thereof along the axis C3 is shorter than the length of the lower end of the guide surface 54 along the axis C3, the engagement portion 43 can be prevented from colliding with the upper end of the outer surface of the cylindrical portion 2 of the container 1. For example, in the configuration in which the pair of other end edges 56 of the guide surface 54 are parallel to each other, the length from the upper end to the lower end of the guide surface 54 is increased, and therefore, the guide surface 54 needs to be in a state substantially orthogonal to the axis C3 in a state in which the abutting portion 53 abuts against the neck portion 4. However, in this structure, the engaging portion 43 is increased in size.

On the other hand, as shown in fig. 6, when the guide surface 54 is fan-shaped in a state viewed from below, the circumferential length of the end of the guide surface 54 on the side of the contact portion 53 is short, so that the engagement portion 43 is less likely to collide with the barrel portion 2 of the container 1. As a result, it is not necessary to increase the length from the upper end to the lower end of the guide surface 54, and therefore, the size of the engaging portion 43 can be suppressed from increasing.

The other end edge 56 is configured to assume a shape against which the flange 5 having the largest diameter abuts. Therefore, the distance between the contact position of the flange 5 of the assumed maximum diameter of the first guide surface structure portion 54A and the contact position of the flange 5 of the assumed maximum diameter of the second guide surface structure portion 54B can be increased. Therefore, the guide surface 54 can be prevented from swinging relative to the flange 5 in a direction parallel to a line segment connecting two points of the flange 5 of the guide surface 54, and therefore, the container link 20 can be stabilized relative to the container 1 in the process of guiding the flange 5 to the abutting portion 53 by the guide surface 54.

Further, by configuring the other end edge 56 of the guide surface 54 in a shape that is assumed to be in contact with the flange 5 having the largest diameter, it is possible to shorten the distance along the axis C3 in which the container connector 20 is pushed in from the point where the container connector 20 is moved along the axis C3 to be brought into contact with the flange 5 to engage the contact portion 53 in the neck portion 4 of the container 1.

The guide surface 54 is a curved surface in which the center of curvature of a part of the guide surface 54 constituting a part of the cross-sectional edge of the engagement portion 43 orthogonal to the axis C3 is located on the first virtual plane P1 side. Therefore, the clearance between the guide surface 54 and the cylindrical portion 2 of the container 1 can be increased, and therefore, the guide surface 54 can be prevented from colliding with the cylindrical portion 2 of the container 1.

The center portion of the contact portion 53 is recessed in a direction away from the other engaging portion 43 than the other portions of the contact portion 53. Therefore, the neck portion 4 having a small outer diameter abuts on both ends of the recess, and therefore, the interval between two points at which one engaging portion 53 abuts on the neck portion 4 having a small outer diameter can be prevented from being shortened. As a result, the state in which the neck portion 4 having a small outer diameter is sandwiched by the pair of engaging portions 53 can be stabilized.

Next, a container adapter 20A according to a second embodiment of the present invention will be described with reference to fig. 55 and 56. The same reference numerals as in the first embodiment are used for the components having the same functions as in the first embodiment, and the description thereof is omitted.

Fig. 55 is a perspective view showing the structure of the container coupler 20A. Fig. 56 is a sectional view showing the structure of the container connection member 20A. The container connector 20A is configured to be fixed to an instrument connector having no structure related to the air bladder 152 and the gas flow path L2. As an example of this instrument connector, the air bladder 152, the air bladder housing portion 150, the gas needle 175, and the inner case 140 are omitted from the instrument connector 100 described in the first embodiment.

As shown in fig. 55 and 56, the container adapter 20A includes: a needle member 60A, a sealing cap 70, and a container sealing member 90.

The needle member 60A includes a needle member base portion 61A, a needle portion 62A, and a tube connecting portion 300. The needle portion 62A of the needle member 60A is connected to an infusion bag, for example, by being inserted into the infusion bag.

The needle member base 61A has a structure in which the gas flow path structure portion L4 is omitted from the needle member base 61 described in the first embodiment. The needle portion 62A extends in a direction inclined with respect to the needle member base portion 61A, specifically, in a direction orthogonal thereto. The needle 62 includes a liquid flow path structure L3 and a gas flow path structure L4.

The tube connecting portion 300 extends from the needle portion 62A. The tube connecting portion 300 is connected to a tube such as a drip tube. Specifically, the tube connecting portion 300 is connected to the tube by inserting a needle having a flow path inside and provided in the tube. The pipe connection portion 300 is formed in a cylindrical shape communicating with the gas flow path structure portion L4. A plug 301 for closing the opening of the pipe connecting portion 300 is provided in the opening. A cannulated needle is inserted into the plug 301.

The plug 301 is made of resin such as rubber and elastomer, and has flexibility. The plug 301 may be formed such that a hole formed by a needle inserted into a tube is closed with liquid-tightness and air-tightness by restoring force after the needle is moved.

The container connector 20 of the second embodiment can also be fixed to the instrument connector by the same engaging member 160 as the instrument connector 100 of the first embodiment.

The engaging member 160 according to the first and second embodiments is described as an example of a structure provided in the tool attachment 100, but is not limited thereto. The engaging member 160 may be provided in a first member having an opening, and the first member and a second member inserted into the first member through the opening of the first member may be locked. In other words, the implement attachment 100 is an example of a first component and the container attachment 20, 20A is an example of a second component.

In the first and second embodiments, the configuration in which the engagement member 160 includes the posture adjustment section 167 has been described as an example, but the present invention is not limited thereto. In another example, the engaging member 160 may not have the posture adjustment section 167. In this configuration, the fulcrum portion 168 and the operation portion 165 are formed continuously in the axial direction of the body portion 117. The engaging portion 161 and the fulcrum portion 168 are formed continuously in the axial direction of the body portion 117. The deformation portion 166 and the engagement portion 161 are formed continuously in the axial direction of the body portion 117. As described in the first and second embodiments, the engagement member 160 preferably has the posture adjustment portion 167, and the engagement portion 161 can be moved smoothly.

The present invention is not limited to the above-described embodiments, and various modifications can be made in the implementation stage without departing from the scope of the present invention. In addition, the respective embodiments may be appropriately combined and implemented, and in this case, combined effects can be obtained. Further, the above-described embodiments include various inventions, and various inventions can be extracted by combinations selected from a plurality of structural main components disclosed. For example, in the case where the problems can be solved and the effects can be obtained even if several structural main components are removed from all the structural main components shown in the embodiments, the structure from which the structural main components are removed can be extracted as an invention.

Description of the reference numerals

10 connecting the appliance; 20a container connection; 20A container connection; 30 a container fixing portion; 40 a container-securing portion body; 41 a base part; 42 wrist portion; 43 an engaging part; 43A first portion; 43B second portion; 44 holes; 45 arc parts; 46 a rectangular portion; 47 a clamping claw; 48a base portion; 49 claw parts; 50a first wrist portion; 51 a fold-back part; 52 a second wrist portion; 53 an abutting portion; a 53A first contact portion structure portion; 53B second contact structure; 54a guide surface; 54A first guide surface structure portion; 54B a second guide surface structure portion; an end edge of 55; 56 edges; 56 at the other end edge; a 60-pin member; a 60A needle member; 61a needle member base; a 61A needle member base; 62 needle parts; a 62A needle portion; 63 a flange; 64 an extension portion; 65 column parts; 66 rotation stopping parts; 67 an abutting portion; 70 sealing the cover; 71 a large diameter part for a seal cap; 72a seal cover intermediate diameter portion; 72a upper end portion; 73 sealing the small diameter portion; 73a is opened; 73b edge part; 73c lower surface; 75 a first guide protrusion; 76 inner peripheral surface; 77 a locking recess; 78 a clamped part; 79 lower surface; 81 grooves; 82 to be engaged; 90 a container seal; 93 a seal large diameter portion; 94 a seal minor diameter portion; 95 upper end surface; 96 a first fitting part; 97 a second fitting part; 100 appliance connectors; 110 a contour body; 111 a profile body; 114 a top wall portion; 115 a syringe fixing portion; 116 a liquid needle fixing part; 117a barrel portion; 117a holes; 117b inner peripheral surface; 118 a force application part; 120 syringe fixing part body; 121 a syringe fixing portion protrusion; 122 a needle holder; 123 a projection; 124a base portion; 124a ratchet wheel; 126 a first guide groove; 127 a second guide groove; 128 a locking projection; 129 lock release projection; 131 holes; 132 a contoured body structural member; 134 a plurality of pins; 134 pins; 135 a plurality of holes; 135 holes; 140 inner sleeve; 141 an inner sleeve main body; 142 an extension portion; 143 holes; 144 a gas needle fixing part; 145 a support portion; 146 a fixed part; 147 a flange; 148 end faces; 148a lower end; 148b upper end; 150 an air bag housing portion; 151 a connecting portion; 152 an air bag; 160a snap member; 160a locking mechanism; 161 engaging part; 162 upper surface; 164 lower surface; 165 an operation section; 166 a deformation part; 167 a posture adjustment section; 168 fulcrum portions; 169 a fixing part; 170 liquid needle; 170 needles; 171 lower end portion; 172 holes; 172 two holes; 173 outer peripheral surface; 175 gas needle; 175 needles; 180 head covers; 181 head cover main body; 182 a second guide protrusion; 183 outer peripheral surface; 185 first wrist receiving recess; 186 a second wrist receiving recess; 187 fixing protrusion receiving recess; 188 an inlet portion; 189 a holding part; 190 inner circumferential surface; 191 a partition; 192 holes; 193 an upper surface; 194 a guide member; 195 a guide body; 196 a support portion; 197 holes; 198 holes; sealing with 200 needles; 201 a first portion; 202 a second portion; 203 a third portion; 204 lower end face; 230 a stop collar; 231 a first wrist portion; 232 a second wrist; 233 a connecting part; 235 faces; 236 fixing protrusions; 237 a first protrusion for a wrist; 238 lower end surface; 239 sides; 240 a second wrist protrusion; 241 upper surface; 242 lower end face; 243 sides; 243a central portion; 250 a force applying member; a 300 tube connection; 301 a plug; an L1 liquid flow path; an L2 gas flow path; l3 liquid flow path structure part; an L4 gas flow path structure section; l5 gas flow path structure part.