阅读说明：本技术 放射性液体自动分装装置及方法 (Automatic radioactive liquid subpackaging device and method ) 是由 郑建坤 刘玉平 李楠 张潇楠 石翠燕 翟丽娜 王刚 曹端 高松 赵思远 牛绪祥 于 2021-09-28 设计创作，主要内容包括：本发明提供一种放射性液体自动分装装置及方法,包括有壳体、伸缩驱动件、上下驱动件、伸缩套、连接块、上限位组件、下限位组件、承载件和转动驱动件；伸缩驱动件固定安装在壳体的内部,上下驱动件的一端安装在伸缩驱动件上,伸缩套安装在壳体的上表面；上下驱动件的另一端与伸缩套的内壁面连接,上下驱动件的伸缩轴穿过伸缩套与连接块的一端连接；上限位组件安装在连接块的另一端上,下限位组件安装在伸缩套上,下限位组件位于上限位组件下方；承载件安装在壳体的上表面,转动驱动件安装在壳体内部,转动驱动件与承载件连接。本发明实现了放射性液体的自动化分装,无需人工参与,有效防止了环境或人体受到放射性污染。(The invention provides an automatic radioactive liquid subpackaging device and method, which comprises a shell, a telescopic driving piece, an upper and lower driving piece, a telescopic sleeve, a connecting block, an upper limiting component, a lower limiting component, a bearing piece and a rotary driving piece, wherein the shell is provided with a plurality of positioning holes; the telescopic driving piece is fixedly arranged in the shell, one end of the upper driving piece and one end of the lower driving piece are arranged on the telescopic driving piece, and the telescopic sleeve is arranged on the upper surface of the shell; the other end of the upper driving piece and the lower driving piece is connected with the inner wall surface of the telescopic sleeve, and a telescopic shaft of the upper driving piece and the lower driving piece penetrates through the telescopic sleeve to be connected with one end of the connecting block; the upper limit component is arranged at the other end of the connecting block, the lower limit component is arranged on the telescopic sleeve, and the lower limit component is positioned below the upper limit component; the upper surface at the casing is installed to the carrier, rotates the driving piece and installs inside the casing, rotates the driving piece and is connected with the carrier. The invention realizes the automatic subpackage of the radioactive liquid without human participation and effectively prevents the environment or human body from being polluted by radioactivity.)

1. An automatic radioactive liquid subpackaging device is characterized by comprising a shell, a telescopic driving piece, an upper and lower driving piece, a telescopic sleeve, a connecting block, an upper limiting component, a lower limiting component, a bearing piece and a rotary driving piece;

the telescopic driving piece is fixedly arranged in the shell, one end of the upper driving piece and one end of the lower driving piece are arranged on the telescopic driving piece, and the telescopic sleeve is arranged on the upper surface of the shell;

the other end of the upper driving piece and the lower driving piece is connected with the inner wall surface of the telescopic sleeve, and a telescopic shaft of the upper driving piece and the lower driving piece penetrates through the telescopic sleeve to be connected with one end of the connecting block;

the upper limit component is arranged at the other end of the connecting block, the lower limit component is arranged on the telescopic sleeve, and the lower limit component is positioned below the upper limit component;

the carrier is installed the upper surface of casing, the rotation driving piece is installed inside the casing, the rotation driving piece with it connects to hold the carrier.

2. An automatic radioactive liquid subpackaging device according to claim 1, wherein the upper limiting assembly comprises an upper limiting seat, an upper pressing block and an upper shifting lever, one end of the upper limiting seat is connected with the connecting block, the other end of the upper limiting seat is provided with an upper clamping groove, the upper limiting seat is further provided with a first through hole matched with the upper pressing block, one end of the upper pressing block is clamped in the first through hole, and the upper shifting lever is connected with the other end of the upper pressing block.

3. The automatic radioactive liquid subpackaging device according to claim 2, wherein one end of the upper compression block is provided with a groove, the upper limiting seat is further provided with a second through hole, a limiting part matched with the groove is arranged in the second through hole, the limiting part is positioned below one end of the upper compression block, and the limiting part is clamped with the groove.

4. An automatic radioactive liquid dispensing device according to any one of claims 1 to 3, wherein the lower limiting assembly comprises a lower limiting seat, a lower clamping groove is formed in the lower half portion of the lower limiting seat, a lower pressing block is rotatably connected to the middle of the lower limiting seat, the lower pressing block is located above the lower clamping groove, and a notch is formed in the lower pressing block.

5. An automatic radioactive liquid dispensing device according to claim 4, wherein the lower pressing block includes a threaded post and a lower driving lever, the lower retainer has a threaded hole matching with the threaded post, and one end of the lower driving lever is connected to the threaded post.

6. An automatic radioactive liquid dispensing device according to claim 4, wherein the lower retainer is mounted on the telescopic sleeve, a plurality of first connecting holes are provided on a connecting surface of the lower retainer and the telescopic sleeve, and a second connecting hole corresponding to the first connecting hole is provided on a connecting surface of the telescopic sleeve and the lower retainer.

7. An automatic radioactive liquid dispensing device according to claim 4, wherein the lower holder comprises an upper plate and a lower plate, the upper plate is provided with a plurality of third connecting holes, the lower plate is provided with fourth connecting holes corresponding to the third connecting holes, and a fastening member is inserted into the third connecting holes after passing through the fourth connecting holes to fixedly connect the upper plate and the lower plate.

8. An automatic radioactive liquid dispensing device according to any one of claims 1 to 3, further comprising a tungsten sleeve, wherein the tungsten sleeve is mounted at the connection between the telescopic sleeve and the housing.

9. An automatic radioactive liquid dispensing device according to any one of claims 1 to 3, wherein the housing includes a housing and a cover plate, a cavity is provided in the housing, and the cover plate is detachably connected to the upper end of the housing.

10. An automatic radioactive liquid subpackaging method is characterized by comprising the following steps:

s1, numbering the sub-packaging bottles in an increasing manner according to the sequence of the volumes from small to large, adding the volumes of all the sub-packaging bottles to obtain a total volume, and then comparing the total volume with the maximum volume of the injector;

s2, when the total volume is smaller than the maximum capacity, the syringe extracts radioactive liquid consistent with the total volume and then injects the radioactive liquid into each split charging bottle in sequence;

s3, when the total volume is greater than the maximum volume, determining that the volume sum obtained by adding the volume of the sub-bottle with the maximum volume to the volume of the 1 st sub-bottle, the second sub-bottle, and the third sub-bottle in sequence exceeds the maximum volume, extracting a standard volume of radioactive solution, and then injecting the standard volume into the 1 st to the (n-1) th sub-bottles and the sub-bottle with the maximum volume in sequence, wherein the standard volume is the volume obtained by subtracting the volume of the nth sub-bottle from the volume sum;

s4, the remaining sub-bottles are numbered again in ascending order of volume, and then the step S3 is repeated until the injection of the radioactive solution is completed for all the sub-bottles.

Technical Field

The invention relates to the technical field of radioactive liquid subpackage, in particular to an automatic radioactive liquid subpackage device and method.

Background

In the production of radioactive liquids, the radioactive liquid is essentially stored in a large volume container. During subsequent transportation and use of radioactive liquid, the radioactive liquid needs to be dispensed into small-volume containers.

When the radioactive liquid is subpackaged, the box chamber has certain radioactivity and has certain loss effect on electronic equipment, so that the radioactive liquid is mostly manually or semi-automatically realized by using a self-made measuring tool at present, and further, the environment or the human body is easily polluted by radioactivity.

Disclosure of Invention

The invention provides an automatic radioactive liquid subpackaging device and method, which are used for solving the defect that manual or semi-automatic radioactive liquid subpackaging in the prior art easily causes environment or human body to be polluted by radioactivity, realizing automatic radioactive liquid subpackaging in a shielding box chamber and avoiding the environment or the human body from being polluted by the radioactivity.

The invention provides an automatic radioactive liquid subpackaging device which comprises a shell, a telescopic driving piece, an upper and lower driving piece, a telescopic sleeve, a connecting block, an upper limiting assembly, a lower limiting assembly, a bearing piece and a rotary driving piece, wherein the shell is provided with a plurality of positioning holes;

the telescopic driving piece is fixedly arranged in the shell, one end of the upper driving piece and one end of the lower driving piece are arranged on the telescopic driving piece, and the telescopic sleeve is arranged on the upper surface of the shell;

the other end of the upper driving piece and the lower driving piece is connected with the inner wall surface of the telescopic sleeve, and a telescopic shaft of the upper driving piece and the lower driving piece penetrates through the telescopic sleeve to be connected with one end of the connecting block;

the upper limit component is arranged at the other end of the connecting block, the lower limit component is arranged on the telescopic sleeve, and the lower limit component is positioned below the upper limit component;

the carrier is installed the upper surface of casing, the rotation driving piece is installed inside the casing, the rotation driving piece with it connects to hold the carrier.

According to the automatic radioactive liquid subpackaging device provided by the invention, the upper limiting seat comprises an upper limiting seat, an upper pressing block and an upper shifting lever, one end of the upper limiting seat is connected with the connecting block, the other end of the upper limiting seat is provided with an upper clamping groove, the upper limiting seat is further provided with a first through hole matched with the upper pressing block, one end of the upper pressing block is clamped in the first through hole, and the upper shifting lever is connected with the other end of the upper pressing block.

According to the automatic radioactive liquid subpackaging device provided by the invention, one end of the upper compression block is provided with a groove, the upper limiting seat is also provided with a second through hole, a limiting piece matched with the groove is arranged in the second through hole, the limiting piece is positioned below one end of the upper compression block, and the limiting piece is clamped with the groove.

According to the automatic radioactive liquid subpackaging device provided by the invention, the lower limiting component comprises a lower limiting seat, a lower clamping groove is formed in the lower half part of the lower limiting seat, a lower pressing block is rotatably connected to the middle position of the lower limiting seat and located above the lower clamping groove, and a notch is formed in the lower pressing block.

According to the automatic radioactive liquid subpackaging device provided by the invention, the lower pressing block comprises a threaded column and a lower driving lever, a threaded hole matched with the threaded column is formed in the lower limiting seat, and one end of the lower driving lever is connected with the threaded column.

According to the automatic radioactive liquid subpackaging device provided by the invention, the lower limiting seat is installed on the telescopic sleeve, a plurality of first connecting holes are formed in the connecting surface of the lower limiting seat and the telescopic sleeve, and second connecting holes corresponding to the first connecting holes are formed in the connecting surface of the telescopic sleeve and the lower limiting seat.

According to the automatic radioactive liquid subpackaging device provided by the invention, the lower limiting seat comprises an upper plate and a lower plate, a plurality of third connecting holes are formed in the upper plate, fourth connecting holes corresponding to the third connecting holes are formed in the lower plate, and the upper plate and the lower plate are fixedly connected together by inserting a fastening piece into the third connecting holes after penetrating through the fourth connecting holes.

According to the automatic radioactive liquid subpackaging device provided by the invention, the automatic radioactive liquid subpackaging device further comprises a tungsten sleeve, and the tungsten sleeve is arranged at the connecting position of the telescopic sleeve and the shell.

According to the automatic radioactive liquid subpackaging device provided by the invention, the shell comprises a shell body and a cover plate, a cavity is arranged in the shell body, and the cover plate is detachably connected with the upper end of the shell body.

The invention also provides an automatic radioactive liquid subpackaging method, which comprises the following steps:

s1, numbering the sub-packaging bottles in an increasing manner according to the sequence of the volumes from small to large, adding the volumes of all the sub-packaging bottles to obtain a total volume, and then comparing the total volume with the maximum volume of the injector;

s2, when the total volume is smaller than the maximum capacity, the syringe extracts radioactive liquid consistent with the total volume and then injects the radioactive liquid into each split charging bottle in sequence;

s3, when the total volume is greater than the maximum volume, determining that the volume sum obtained by adding the volume of the sub-bottle with the maximum volume to the volume of the 1 st sub-bottle, the second sub-bottle, and the third sub-bottle in sequence exceeds the maximum volume, extracting a standard volume of radioactive solution, and then injecting the standard volume into the 1 st to the (n-1) th sub-bottles and the sub-bottle with the maximum volume in sequence, wherein the standard volume is the volume obtained by subtracting the volume of the nth sub-bottle from the volume sum;

s4, the remaining sub-bottles are numbered again in ascending order of volume, and then the step S3 is repeated until the injection of the radioactive solution is completed for all the sub-bottles.

According to the automatic radioactive liquid subpackaging device and method provided by the invention, the barrel of the syringe is limited and fixed through the lower limiting assembly, so that the barrel of the syringe is kept still in the radioactive liquid subpackaging process. The piston handle of the injector is limited and fixed through the upper limiting assembly, so that the piston handle of the injector can move along with the up-down movement of the connecting block. The upper driving part and the lower driving part are driven by the telescopic driving part to move up and down, the telescopic sleeve and the lower limiting assembly arranged on the telescopic sleeve move up and down, and the upper limiting assembly arranged on the connecting block can be driven by the upper driving part and the lower driving part to move synchronously together. The telescopic shaft is driven to move up and down through the upper driving piece and the lower driving piece, the telescopic shaft drives the connecting block to move up and down, and the upper limiting assembly moves up and down along with the upper limiting assembly. When radioactive liquid is subpackaged, the upper limit component and the lower limit component move downwards simultaneously through the work of the telescopic driving piece, namely, the cylinder body and the piston handle of the syringe move downwards simultaneously. After the syringe needle of syringe inserted the split charging bottle, flexible driving piece stop work, and upper and lower driving piece begins work for it moves down to go up the spacing subassembly, and then drives the piston handle of syringe and move down, and then has realized injecting the radioactive liquid in the syringe into the split charging bottle, then passes through flexible driving piece once more, makes and goes up spacing subassembly and lower spacing subassembly and shift up simultaneously, makes the syringe needle of syringe break away from the split charging bottle can, then can carry out the radioactive liquid injection of next split charging bottle. And further, automatic sub-packaging of radioactive liquid is realized, manual participation is not needed, and the environment or human body is effectively prevented from being polluted by radioactivity.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an automatic radioactive liquid dispensing apparatus according to the present invention;

FIG. 2 is a schematic structural diagram of an upper limit stop assembly of the automatic radioactive liquid dispensing apparatus according to the present invention;

FIG. 3 is a second schematic structural diagram of an upper limit stop assembly of the automatic radioactive liquid dispensing apparatus according to the present invention;

FIG. 4 is a schematic structural diagram of a lower limit component of the automatic radioactive liquid dispensing apparatus according to the present invention;

FIG. 5 is a second schematic structural diagram of a lower limit assembly of the automatic radioactive liquid dispensing apparatus according to the present invention;

FIG. 6 is a schematic view of a needle guide assembly of the automatic radioactive liquid dispensing apparatus according to the present invention;

FIG. 7 is a flow chart of an automatic radioactive liquid dispensing method according to the present invention;

reference numerals:

1: a housing; 2: an upper and lower driving member; 3: a telescopic sleeve;

4: connecting blocks; 5: an upper limit component; 6: a lower limit component;

7: a carrier; 8: a needle guide assembly; 9: a tungsten sleeve;

11: a housing; 12: a cover plate; 13: a connecting member;

51: an upper limiting seat; 52: an upper compaction block; 53: an upper deflector rod;

54: an upper clamping groove; 55: a first through hole; 56: rotating the limiting block;

57: a groove; 58: a limiting member; 61: a lower limit seat;

62: a lower clamping groove; 63: pressing the pressing block; 64: a notch;

81: a needle guide frame; 82: a guide pin hole; 611: a limiting column;

612: a first connection hole; 613: an upper plate; 614: a lower plate;

615: a fourth connection hole; 631: a threaded post; 632: and a lower deflector rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The automatic radioactive liquid dispensing apparatus and method of the present invention will be described with reference to fig. 1 to 7.

As shown in the attached drawing 1, the automatic radioactive liquid subpackaging device comprises a shell 1, a telescopic driving piece, an upper and lower driving piece 2, a telescopic sleeve 3, a connecting block 4, an upper limiting component 5, a lower limiting component 6, a bearing piece 7 and a rotary driving piece.

Particularly, flexible driving piece fixed mounting is in the inside of casing 1, and the one end of upper and lower driving piece 2 is installed on flexible driving piece, and telescopic sleeve 3 is installed at the upper surface of casing 1, and the other end of upper and lower driving piece 2 is connected with telescopic sleeve 3's internal face, and the telescopic shaft of upper and lower driving piece 2 passes telescopic sleeve 3 and is connected with the one end of connecting block 4. Go up spacing subassembly 5 and install on the other end of connecting block 4, spacing subassembly 6 is installed on telescope tube 3 down, and spacing subassembly 6 is located spacing subassembly 5 below down. The carrier 7 is mounted on the upper surface of the housing 1, and the rotary drive is mounted inside the housing 1 and connected to the carrier 7.

In use, the upper half of the housing 1 is mounted in a shield layer, the upper surface of the housing 1 is positioned in a chamber, and then radioactive liquid is dispensed into the chamber. Carry out the joint with the barrel of syringe and lower spacing subassembly 6, carry out spacing fixedly through lower spacing subassembly 6 to the barrel of syringe for the barrel of syringe keeps motionless at the in-process of radioactive liquid partial shipment. The piston handle of the syringe is clamped with the upper limit component 5, and the piston handle of the syringe is limited and fixed through the upper limit component 5, so that the piston handle of the syringe can move along with the up-down movement of the connecting block 4. Then, a plurality of sub-bottles for containing radioactive liquid are placed on the bearing member 7, and the bearing member 7 is driven to rotate by rotating the driving member, so that the sub-bottles are rotated below the injector.

Then drive upper and lower driving piece 2 through flexible driving piece and reciprocate, telescopic sleeve 3 and install lower spacing subassembly 6 on telescopic sleeve 3 along with reciprocating, and upper and lower driving piece 2's removal can drive connecting block 4 and install upper spacing subassembly 5 on connecting block 4 along with synchronous motion together. The telescopic shaft is driven to move up and down through the upper and lower driving pieces 2, the telescopic shaft drives the connecting block 4 to move up and down, and the upper limit component 5 moves up and down along with the upper limit component. When the radioactive liquid is subpackaged, the upper limit component 5 and the lower limit component 6 move downwards simultaneously through the work of the telescopic driving piece, namely, the cylinder body and the piston handle of the syringe move downwards simultaneously. After the syringe needle of syringe inserted the split charging bottle, flexible driving piece stop work, upper and lower driving piece 2 began work for go up spacing subassembly 5 and move down, and then the piston handle that drives the syringe moves down, and then realized injecting the radioactive liquid in the syringe into the split charging bottle, then pass through flexible driving piece once more, make go up spacing subassembly 5 and lower spacing subassembly 6 and shift up simultaneously, make the syringe needle of syringe break away from the split charging bottle can, then can carry out the radioactive liquid injection of next split charging bottle. And further, automatic sub-packaging of radioactive liquid is realized, manual participation is not needed, and the environment or human body is effectively prevented from being polluted by radioactivity. And electric components such as flexible driving piece, upper and lower driving piece 2 and rotation driving piece all install in casing 1, and direct exposure is all mechanical parts in the case, and then has avoided the reflective material to cause the damage to electronic parts, has increased the life of device.

When the radioactive liquid in one of the split bottles needs to be transferred into the other split bottle, the needle head of the injector is inserted into one of the split bottles, the upper limiting component 5 is driven by the upper and lower driving component 2 to move upwards, so that the piston handle of the injector moves upwards, the radioactive liquid in one of the split bottles is extracted into the injector, the bearing component 7 is rotated, the other split bottle is rotated below the injector, the needle head of the injector is inserted into the other split bottle, the upper limiting component 5 moves downwards to drive the piston handle of the injector to move downwards, and the radioactive liquid in the injector is injected into the other split bottle, so that the automatic transfer of the radioactive liquid is realized.

Among these, in an alternative embodiment of the present invention, the up-down driving member 2, the telescopic driving member, and the rotary driving member are, for example, cylinder driving members. It will be appreciated that the up-down drive 2, the telescopic drive and the rotary drive may be any other suitable drive.

The dispensing bottle used in the present invention is, for example, a negative pressure bottle, so that the syringe can smoothly draw liquid from or inject liquid into the dispensing bottle. It should be understood that the dispensing bottle may be any other suitable container, such as a container with a vent.

In an alternative embodiment of the present invention, the bottom of the dispensing bottle is tapered, so that the solution in the dispensing bottle can be completely extracted by the syringe.

Wherein in an alternative embodiment of the invention the needle of the syringe is for example an elastic needle, thereby enabling the syringe.

Further, as shown in fig. 1, fig. 2 and fig. 3, the upper limiting assembly 5 includes an upper limiting seat 51, an upper pressing block 52 and an upper shifting lever 53, one end of the upper limiting seat 51 is connected to the connecting block 4, the other end of the upper limiting seat 51 is provided with an upper clamping groove 54, the upper limiting seat 51 is further provided with a first through hole 55 matched with the upper pressing block 52, one end of the upper pressing block 52 is clamped in the first through hole 55, and the upper shifting lever 53 is connected to the other end of the upper pressing block 52. When using, with the piston handle joint of syringe in last draw-in groove 54, then exert an external force to last driving lever 53 for go up driving lever 53 and rotate the opposite side from one side, and then drive compact heap 52 and rotate, go up the piston handle butt of compact heap 52 rotation back and joint syringe in the draw-in groove, go up compact heap 52 and compress tightly the piston handle of syringe and fix in draw-in groove department, and then realized the spacing fixed to syringe piston handle.

As shown in fig. 2 and 3, in an alternative embodiment of the present invention, the upper pressing block 52 is, for example, a vertically cut cylinder, and the vertical cross section of the upper pressing block 52 is rectangular. It should be appreciated that upper compact 52 may be any other suitable shape.

As shown in fig. 2, the upper limiting seat 51 is further provided with a rotation limiting block 56, one end of the rotation limiting block 56 is located on one side of the upper pressing block 52, the other end of the rotation limiting block 56 is located on the other side of the upper pressing block 52, and the upper shift lever 53 is located above the rotation limiting block 56. When using, go up driving lever 53 and be located the one end department that rotates stopper 56 during the initiation, at this moment, the tangent plane of going up compact heap 52 is down, it has certain clearance to go up compact heap 52 and joint between the piston handle of the syringe in last draw-in groove 54, then will go up driving lever 53 and rotate the opposite side of stopper 56 from the one side that rotates stopper 56, it is along with rotating to go up compact heap 52, and then make the piston handle butt of last compact heap 52 and syringe, realized compressing tightly fixed to the piston handle of syringe, it then prescribes a limit to the rotation range of going up driving lever 53 to rotate stopper 56, it compresses tightly fixedly to the piston handle of syringe to avoid going up driving lever 53 to rotate at will and lead to being difficult to stable.

As shown in fig. 2, in an alternative embodiment of the present invention, the rotation limiting block 56 is a U-shaped limiting block. It should be appreciated that the rotational stop 56 may be any other suitable stop shape.

As shown in fig. 2 and fig. 3, a groove 57 is provided at one end of the upper pressing block 52, a second through hole is further provided on the upper limiting seat 51, a limiting member 58 matched with the groove 57 is provided in the second through hole, the limiting member 58 is located below one end of the upper pressing block 52, and the limiting member 58 is clamped with the groove 57. When the clamping device is used, one end of the upper pressing block 52 is inserted into the first through hole 55, and then the limiting piece 58 penetrates through the second through hole and then is clamped with the groove 57 of the upper pressing block 52, so that the limiting piece 58 has a limiting effect on the upper pressing block 52 and prevents the upper pressing block 52 from being separated from the first through hole 55.

Further, as shown in fig. 1, 4 and 5, the lower limiting component 6 includes a lower limiting seat 61, a lower clamping groove 62 is formed in the lower half portion of the lower limiting seat 61, a lower pressing block 63 is rotatably connected to the middle position of the lower limiting seat 61, the lower pressing block 63 is located above the lower clamping groove 62, and a gap 64 is formed in the lower pressing block 63. When using, make breach 64 be located draw-in groove 62's top down earlier, then with the barrel joint of syringe draw-in groove 62 down, then apply an external force through compact heap 63 under the degree for compact heap 63 is rotatory down, makes breach 64 also along with rotatory, pushes down compact heap 63 and syringe barrel butt, has realized the spacing fixed to the syringe barrel.

As shown in fig. 4, the lower pressing block 63 includes a threaded post 631 and a lower toggle rod 632, a threaded hole matching with the threaded post 631 is disposed on the lower limiting seat 61, and one end of the lower toggle rod 632 is connected to the threaded post 631. When using, through applying an external force to lower thumb rod 632, can be so that screw thread post 631 is rotatory, when the barrel joint of syringe was in draw-in groove 62 down, rotatory screw thread post 631 for down remove when screw thread post 631 is rotatory, and then make screw thread post 631 can compress tightly the syringe barrel and fix spacingly.

As shown in fig. 4, the upper surface of the lower stopper seat 61 is provided with a stopper column 611. When the pressing device is used, when an external force is applied to the lower poking rod 632 to enable the lower pressing block 63 to rotate, the limiting column 611 can limit the lower poking rod 632, and the lower poking rod 632 is prevented from continuously rotating to cause the lower pressing block 63 to be separated from the lower limiting seat 61.

As shown in fig. 1 and 5, the lower retainer 61 is mounted on the telescopic sleeve 3, a plurality of first connection holes 612 are disposed on a connection surface of the lower retainer 61 and the telescopic sleeve 3, and a second connection hole corresponding to the first connection hole 612 is disposed on a connection surface of the telescopic sleeve 3 and the lower retainer 61. When using, insert first connecting hole 612 after passing the second connecting hole through the fastener, and then with lower retaining bracket 61 and flexible cover 3 fixed connection together, and because fastener and connecting hole all are located the junction of lower retaining bracket 61 and flexible cover 3, fastener and connecting hole all can not expose in external environment, make partial shipment device's surface more smooth, can effectually prevent that radioactive substance from remaining on connecting hole or fastener and be difficult to clean cleanly, conveniently clean partial shipment device, avoid remaining of radioactive substance.

As shown in fig. 1 and 5, the lower limiting seat 61 includes an upper plate 613 and a lower plate 614, the upper plate 613 is provided with a plurality of third connecting holes, the lower plate 614 is provided with fourth connecting holes 615 corresponding to the third connecting holes, and a fastener is inserted into the third connecting holes after passing through the fourth connecting holes 615 to fixedly connect the upper plate 613 and the lower plate 614 together. In use, the fastening member is inserted into the third connecting hole from the fourth connecting hole 615 of the lower plate 614 to fixedly connect the upper plate 613 and the lower plate 614, so that the opening of the fourth connecting hole 615 faces downward, thereby preventing the radioactive substance from being retained on the connecting hole or the fastening member all the time.

Wherein in an alternative embodiment of the invention, the fastener is, for example, a screw. It should be understood that the fasteners may be any other suitable structural member.

Further, as shown in fig. 1 and fig. 6, the automatic radioactive liquid subpackaging device further comprises a needle guide assembly 8, the needle guide assembly 8 is fixedly installed on the upper surface of the housing 1, and the needle guide assembly 8 is located below the lower limiting assembly 6. When using, install the syringe on last spacing subassembly 5 and lower spacing subassembly 6, at the in-process of radioactive liquid partial shipment, the syringe need be continuous reciprocates for the syringe needle of syringe can be continuous insert the partial shipment bottle or extract, syringe needle direction subassembly 8 then is used for reciprocating of guide needle, carry on spacingly to the syringe needle, insert or extract the partial shipment bottle behind syringe needle direction subassembly 8 is passed to the syringe needle of syringe, prevent that the askew condition that leads to partial shipment failure or syringe needle bending in the in-process that reciprocates of syringe needle from appearing.

As shown in fig. 6, the needle guide assembly 8 includes a needle guide frame 81, one end of the needle guide frame 81 is fixedly mounted on the upper surface of the housing 1, the other end of the needle guide frame 81 is provided with a needle guide hole 82, and the needle guide hole 82 is located below the lower limit assembly 6. When using, the syringe needle of syringe passes guide pin hole 82 back and inserts the split charging bottle and inject into the split charging bottle with radioactive liquid, then the syringe up moves for the syringe needle breaks away from the split charging bottle, but the syringe needle of syringe still is in guide pin hole 82 this moment, then the syringe needle of syringe moves down along guide pin hole 82 and operates another split charging bottle, until to accomplish the operation or the radioactive liquid injection in the syringe to whole split charging bottles and accomplish the back, the syringe shifts up, drive the syringe needle and break away from guide pin hole 82 completely, realized the direction limiting displacement to the syringe needle, guaranteed that radioactive liquid partial shipment operation can go on smoothly.

Further, as shown in fig. 1, the automatic radioactive liquid subpackaging device further comprises a tungsten sleeve 9, and the tungsten sleeve 9 is installed at the joint of the telescopic sleeve 3 and the shell 1. When the telescopic sleeve 3 is mounted on the shell 1 in use, the telescopic sleeve 3 is generally fixedly connected with the shell 1 through fasteners such as screws, the tungsten sleeve 9 is covered at the joint of the telescopic sleeve 3 and the shell 1, the fasteners such as the screws can be separated from a box by the tungsten sleeve 9, the fasteners such as the screws are prevented from being radiated by radioactive substances, and the service life of the device is prolonged.

Further, as shown in fig. 1, the housing 1 includes a housing 11 and a cover plate 12, a cavity is disposed in the housing 11, and the cover plate 12 is detachably connected to an upper end of the housing 11. When using, flexible driving piece, upper and lower driving piece 2, flexible cover 3, hold carrier 7 and rotate driving piece etc. and all install on apron 12, then dismantle apron 12 from casing 11, can dismantle one of the various parts on apron 12 and apron 12 get off, make things convenient for quick replacement.

As shown in fig. 1, a plurality of connecting members 13 are disposed on the cover plate 12, and a fifth connecting hole matched with the connecting member 13 is disposed at the upper end of the housing 11. When the quick-replacing device is used, the connecting piece 13 is inserted into the fifth connecting hole, the cover plate 12 is fixedly connected with the shell 11, the connecting piece 13 is pulled out of the fifth connecting hole, the cover plate 12 is separated from the shell 11, and therefore the purpose of quick replacement is achieved.

Wherein in an alternative embodiment of the invention the connecting element 13 is for example a hand screw. It should be understood that the connector 13 may be any other suitable connecting structure.

On the other hand, as shown in fig. 7, the present invention further provides an automatic radioactive liquid dispensing method, including:

s1, numbering the sub-packaging bottles in an increasing manner according to the sequence of the volumes from small to large, adding the volumes of all the sub-packaging bottles to obtain the total volume, and then comparing the total volume with the maximum volume of the injector;

s2, when the total volume is smaller than the maximum volume, the syringe extracts the radioactive liquid which is consistent with the total volume, and then the radioactive liquid is sequentially injected into each sub-packaging bottle;

s3, when the total volume is greater than the maximum volume, determining that the volume sum obtained by adding the volume of the sub-bottle with the maximum volume to the volume of the 1 st sub-bottle, the second sub-bottle, and the third sub-bottle, which is the nth sub-bottle, exceeds the maximum volume, extracting the radioactive solution with the standard volume, and then sequentially injecting the radioactive solution into the 1 st to the n-1 st sub-bottles and the sub-bottle with the maximum volume, wherein the standard volume is the volume obtained by subtracting the volume of the nth sub-bottle from the volume sum;

s4, the remaining sub-bottles are numbered again in ascending order of volume, and then the step S3 is repeated until the injection of the radioactive solution is completed for all sub-bottles.

When the injection syringe is used, whether the injection syringe can inject the radioactive solution into all the sub-packaging bottles at one time is determined, if so, the radioactive solution is directly injected into all the sub-packaging bottles, and the sub-packaging process of the radioactive solution is finished.

If not, adding the volume of the sub-bottle with the largest volume with the volume of the 1 st sub-bottle, judging whether the added volume sum exceeds the maximum volume, if so, firstly extracting the radioactive solution with the volume consistent with the volume of the sub-bottle with the largest volume by the injector, and injecting the radioactive liquid into the sub-bottle with the largest volume.

If the volume sum of the volume of the sub-bottle with the largest volume and the volume of the 1 st sub-bottle does not exceed the maximum volume, the volume of the 2 nd sub-bottle is added, and whether the volume sum after addition exceeds the maximum volume is judged. If the volume of the sub-bottle with the largest volume is exceeded, the injector extracts the radioactive solution with the volume which is consistent with the volume obtained by adding the volume of the sub-bottle with the largest volume to the volume of the 1 st sub-bottle, and the radioactive solution injection is carried out on the sub-bottle with the largest volume and the 1 st sub-bottle; if not, adding the volume of the 3 rd sub-packaging bottle, then comparing the added volume sum with the maximum volume, and so on until the volume sum is larger than the maximum volume.

When the volume sum of the volume of the largest sub-bottle and the volume of the 1 st sub-bottle exceeds the maximum volume, the remaining sub-bottles have the second largest volume after the radioactive liquid injection is performed on the sub-bottle with the largest volume. And subsequently, the volume of the second largest partial bottle is compared with the volume camera of the 1 st partial bottle, whether the added volume sum exceeds the maximum capacity is judged, and if the added volume sum exceeds the maximum capacity, the syringe extracts the radioactive liquid which is consistent with the volume of the second largest partial bottle and injects the radioactive liquid into the second largest partial bottle. If not, adding the volume of the sub-bottle with the second largest volume and the volume of the 1 st sub-bottle to the volume of the 2 nd sub-bottle to obtain a volume sum, and then judging whether the volume sum at the moment is larger than the maximum volume. And the rest is repeated until the radioactive liquid injection in all the sub-bottles is finished. The planning of the optimal injection solution is realized before the radioactive solution is injected into the filling bottles, so that the radioactive solution can be quickly filled.

For example: if a group of 6 sub-bottles is divided, the equivalent of each of the 6 sub-bottles is 1.8mL, 3mL, 5mL, 6mL, 7.3mL and 4mL, the radioactive solution is injected into the 1.8mL sub-bottle and the 7.3mL sub-bottle, then the radioactive solution is injected into the 3mL sub-bottle and the 6mL sub-bottle, and finally the radioactive solution is injected into the 4mL sub-bottle and the 5mL sub-bottle. Thereby realizing the quick split charging of the radioactive solution.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.