阅读说明：本技术 器械输送器及医疗设备 (Instrument conveyor and medical equipment ) 是由 闫小珅 于 2021-07-27 设计创作，主要内容包括：本发明提供了一种器械输送器及医疗设备,涉及医疗器械的技术领域,器械输送器包括手柄、驱动机构和鞘管,手柄上设置有通孔,鞘管的近端设置在手柄内并与通孔连通,以使鞘管内的器械的内管的近端能够经通孔穿出手柄；驱动机构安装在手柄上,驱动机构与鞘管连接,驱动机构能够驱动鞘管相对手柄沿鞘管的延伸方向移动；且驱动机构驱动鞘管移动到位后,鞘管与手柄相对固定；具有推拉以及驱动机构驱动的方式,医护操作人员可根据自己的使用习惯,选择自己喜欢的驱动方式对器械进行释放或回收；且不同的驱动方式能够提供不同的进鞘力,可以适用于不同进鞘力的要求,改善了器械输送器的使用范围局限的问题。(The invention provides an instrument conveyor and medical equipment, and relates to the technical field of medical instruments, wherein the instrument conveyor comprises a handle, a driving mechanism and a sheath tube, wherein the handle is provided with a through hole, and the near end of the sheath tube is arranged in the handle and is communicated with the through hole, so that the near end of an inner tube of an instrument in the sheath tube can penetrate out of the handle through the through hole; the driving mechanism is arranged on the handle and connected with the sheath tube, and the driving mechanism can drive the sheath tube to move along the extension direction of the sheath tube relative to the handle; after the driving mechanism drives the sheath tube to move in place, the sheath tube and the handle are relatively fixed; the medical care operating personnel can select the favorite driving mode to release or recover the instrument according to the use habit of the medical care operating personnel; and different driving modes can provide different sheath advancing forces, so that the sheath advancing device can meet the requirements of different sheath advancing forces, and the problem of limited application range of the instrument conveyor is solved.)

1. An instrument transporter is characterized by comprising a handle (100), a driving mechanism and a sheath (300), wherein a through hole (101) is formed in the handle (100), the proximal end of the sheath (300) is arranged in the handle (100), and the proximal end of the sheath (300) is communicated with the through hole (101) so that the proximal end of an inner tube (810) of an instrument (800) in the sheath (300) can pass out of the handle (100) through the through hole (101);

the driving mechanism is arranged on the handle (100), the driving mechanism is connected with the sheath (300), and the driving mechanism can drive the sheath (300) to move along the extending direction of the sheath (300) relative to the handle (100); and after the driving mechanism drives the sheath tube (300) to move to the proper position, the sheath tube (300) and the handle (100) are relatively fixed.

2. The instrument transporter according to claim 1, wherein the handle (100) comprises a housing (110), a fixing member (400) is disposed in the housing (110), the fixing member (400) is slidably connected to the housing (110), the fixing member (400) is fixedly connected to the proximal end of the sheath (300), and the driving mechanism is connected to the fixing member (400) and is capable of driving the fixing member (400) to move the sheath (300) relative to the handle (100) along the extending direction of the sheath (300).

3. The instrument transporter according to claim 2, wherein the fixing member (400) comprises a fixing cap (410) and a fixing rod (420), the proximal end of the sheath (300) is provided with a flaring structure (310), the outer side wall of the flaring structure (310) abuts against the fixing cap (410), the fixing rod (420) abuts against the inner side wall of the flaring structure (310), the fixing rod (420) is matched with the fixing cap (410) to press and fix the proximal end of the sheath (300), and the fixing rod (420) is provided with a through hole (422) communicated with the through hole (101) and the sheath (300).

4. Instrument feeder according to claim 3, characterised in that a sealing ring (500) is fixed inside the perforation (422), said sealing ring (500) being intended to be fitted over the peripheral wall of an inner tube (810) of the instrument (800).

5. The instrument transporter according to any one of claims 2 to 4, wherein the drive mechanism comprises a rotary block (210), the rotary block (210) is mounted on the housing (110), an internally threaded hole is provided in the rotary block (210), the relative position of the rotary block (210) on the housing (110) is fixed, and the rotary block (210) is rotatable about the axis of the internally threaded hole;

the fixing piece (400) and the shell (110) are fixed relatively in the circumferential direction of the shell (110), external threads are arranged on the fixing piece (400) along the direction of the near-end pointing far end of the shell (110), the external threads are screwed in the internal threaded hole, and the internal length of the shell (110) along the near-end pointing far end is greater than the length of the fixing piece (400) along the near-end pointing far end of the shell (110).

6. The instrument transporter according to claim 5, wherein the housing (110) is hollow and cylindrical, the proximal end and the distal end of the housing (110) are respectively connected with arc-shaped sealing covers (120) protruding away from each other, the sheath (300) is arranged in the housing (110) through the distal sealing cover (120), the through hole (101) is arranged on the proximal sealing cover (120), and the rotation block (210) is arranged on the side wall of the housing (110).

7. An instrument transporter according to any one of claims 1 to 4, further comprising a securing assembly (600), the securing assembly (600) being provided at an end of the handle (100) remote from the drive mechanism, the securing assembly (600) being for securing a proximal end of an inner tube (810) of the instrument (800).

8. The instrument transporter according to claim 7, wherein the fixing assembly (600) comprises a fixing block (610), a screw rod (620) and a sliding block (630), the fixing block (610) is fixed on the handle (100), a fixing hole (611) for the proximal end of the inner tube (810) of the instrument (800) to pass through is arranged on the fixing block (610), and a fixing surface (612) is arranged on one side of the axis of the fixing hole (611) of the fixing block (610);

the screw (620) is in threaded connection with one side, opposite to the fixing surface (612), of the fixing block (610), the screw (620) is perpendicular to the axis of the fixing hole (611), the screw (620) is connected with the sliding block (630), and the screw (620) drives the sliding block (630) to be close to or far away from the fixing surface (612) through screwing in or screwing out relative to the fixing block (610).

9. Instrument transporter according to claim 8, characterized in that an operating knob (640) is connected to the screw (620);

and/or;

a guide groove (613) is provided on a side of the fixed block (610) opposite to the fixed surface (612), and the slider (630) is disposed in the guide groove (613).

10. The instrument transporter according to any one of claims 1 to 4, further comprising a connection valve (700), the connection valve (700) being in communication with the through hole (101) via a connection tube, the connection valve (700) being provided with an infusion port to which a flow meter (710) and/or a booster pump (720) is connected;

and/or;

the connecting valve (700) is provided with a pressure measuring port, and a pressure gauge (730) is arranged on the pressure measuring port.

11. The instrument transporter according to claim 10, wherein the connecting valve (700) is a three-way valve, one of the two other ports is an infusion port, the infusion port is provided with a booster pump and a flow meter (710), the other port is a pressure measuring port, and the pressure measuring port is provided with a pressure gauge (730).

12. The instrument transporter of claim 11, further comprising a control assembly (740), the control assembly (740) being connected to the pressure gauge (730), the booster pump (720) and the flow meter (710), the control assembly (740) being configured to receive measurement information from the pressure gauge (730) and to control the action of the booster pump (720) and the flow meter (710) in dependence on the measurement information.

13. The instrument transporter according to any one of claims 1-4, wherein the distal end of the sheath (300) has an inner diameter larger than the inner diameter of the proximal end of the sheath (300).

14. A medical device, comprising a instrument transporter according to any one of claims 1-13 and an instrument (800) fitted in the instrument transporter.

Technical Field

The invention relates to the technical field of medical instruments, in particular to an instrument conveyor and medical equipment.

Background

With the progress of science and technology, the treatment of various diseases by adopting minimally invasive surgery is more and more common. Minimally invasive surgery generally involves implanting instruments through organs or vessels into the body through a sheath. Taking minimally invasive surgery for treating heart failure as an example, the auxiliary apparatus for treating heart failure is generally a blood pump device, and the blood pump device is generally delivered into the ventricle by the following method: compressing the blood pump device into a sheath, wherein a pump body of the blood pump device is arranged at the far end of the sheath, and an inner tube connected with the blood pump device penetrates out of the near end of the sheath; inserting a sheath tube with a built-in blood pump device into a human body through a blood vessel or an organ until the distal end of the sheath tube enters a ventricle, then pushing and pulling the proximal end of an inner tube or the proximal end of the sheath tube of the blood pump device to move the blood pump device relative to the sheath tube, and finally moving the blood pump device out of the sheath tube and into the ventricle to be fixed by the ventricle; after the blood pump device is released in place, the sheath tube is drawn out of the body. After the blood pump device finishes treatment, the sheath tube sleeve is arranged on the outer side of the inner tube again, the ventricle is implanted along the inner tube, then the blood pump device is moved relative to the sheath tube by pushing and pulling the inner tube near end or the sheath tube near end connected with the blood pump device, then the pump body is stored in the sheath tube, and then the sheath tube with the built-in blood pump device is taken out, so that the blood pump device can be recovered from the human body.

In the process that instruments such as a blood pump device and the like are implanted into a body by the conventional sheath tube, the blood pump device can be released and recovered only in a mode of directly pushing and pulling the sheath tube or an inner tube of the instrument, the operation mode is single, and the friendliness to medical care operators with different use habits is poor; and because the sheath feeding forces of different instruments for entering the sheath and pushing out the sheath are different, the single release mode also limits the use of the same sheath in various instruments.

Disclosure of Invention

The invention aims to provide an instrument transporter and medical equipment, and aims to solve the technical problems that in the prior art, the mode of releasing or recovering instruments by a sheath tube is single, the operation of medical care operators with different habits is not facilitated, and the use range is limited.

The instrument conveyor comprises a handle, a driving mechanism and a sheath tube, wherein the handle is provided with a through hole, the near end of the sheath tube is arranged in the handle, and the near end of the sheath tube is communicated with the through hole, so that the near end of an inner tube of an instrument in the sheath tube can penetrate out of the handle through the through hole;

the driving mechanism is arranged on the handle, is connected with the sheath tube and can drive the sheath tube to move relative to the handle along the extension direction of the sheath tube; and after the driving mechanism drives the sheath tube to move in place, the sheath tube and the handle are relatively fixed.

Further, the handle includes the casing, be provided with the mounting in the casing, the mounting with casing slidable connection, the mounting with the near-end fixed connection of sheath pipe, actuating mechanism with the mounting is connected, actuating mechanism can drive the mounting drives the sheath pipe is relative the handle is followed the extending direction of sheath pipe removes.

Further, the mounting includes locking cap and dead lever, the near-end of sheath pipe is provided with the flaring structure, the lateral wall butt of flaring structure is in the locking cap, the dead lever butt is in on the inside wall of flaring structure, the dead lever cooperation the locking cap will the near-end of sheath pipe compresses tightly fixedly, be provided with on the dead lever with the through-hole with the perforation that the sheath pipe all communicates.

Furthermore, a sealing ring is fixed in the through hole and used for being arranged on the outer peripheral wall of the inner tube of the instrument in a sealing mode.

Further, the driving mechanism comprises a rotating block, the rotating block is mounted on the shell, an internal threaded hole is formed in the rotating block, the relative position of the rotating block on the shell is fixed, and the rotating block can rotate by taking the axis of the internal threaded hole as an axis;

the mounting with the casing is in the circumference of casing relatively fixed, follow on the mounting the direction of the directional distal end of near-end of casing is provided with the external screw thread, the external screw thread spiro union is in the internal thread hole, the casing is greater than along the inside length of the directional distal end of near-end of casing the mounting is along the length of the directional distal end of near-end of casing.

Further, the casing is the hollow cylinder setting, the near-end and the distal end of casing are connected with the convex curved sealed lid that deviates from each other respectively, the sheath pipe passes the sealed lid setting of distal end is in the casing, the through-hole sets up at the near-end sealed covering, rotatory piece sets up on the lateral wall of casing.

Further, the instrument transporter further comprises a fixing assembly arranged at one end of the handle far away from the driving mechanism, and the fixing assembly is used for fixing the proximal end of the inner tube of the instrument.

Further, the fixing assembly comprises a fixing block, a screw rod and a sliding block, the fixing block is fixed on the handle, a fixing hole for the near end of the inner tube of the instrument to penetrate through is formed in the fixing block, and a fixing surface is arranged on one side of the axis of the fixing hole of the fixing block;

the screw rod threaded connection be in the fixed block with on the one side that the stationary plane is relative, the screw rod perpendicular to the axis setting of fixed orifices, the screw rod with the slider is connected, the screw rod is through relative the fixed block precession or screw-out drives the slider is close to or keeps away from the stationary plane.

Further, the screw rod is connected with an operation knob;

and/or;

and a guide groove is formed in one side, opposite to the fixed surface, of the fixed block, and the sliding block is arranged in the guide groove.

Furthermore, the apparatus conveyor also comprises a connecting valve, the connecting valve is communicated with the through hole through a connecting pipe, the connecting valve is provided with an infusion port, and a flow meter and/or a booster pump are connected to the infusion port;

and/or;

the connecting valve is provided with a pressure measuring port, and a pressure gauge is arranged on the pressure measuring port.

Furthermore, the connecting valve is a three-way valve, one of the valve ports of the three-way valve is connected and communicated with the connecting pipe, one of the other two valve ports is an infusion port, a booster pump and a flowmeter are arranged on the infusion port, the remaining one valve port is a pressure measuring port, and the pressure measuring port is provided with a pressure gauge.

Further, the inner diameter of the distal end of the sheath is larger than the inner diameter of the proximal end of the sheath.

Further, the apparatus conveyor further comprises a control assembly, the control assembly is connected with the pressure gauge, the pressure gauge and the flow meter, and the control assembly can receive the measurement information of the pressure gauge and control the actions of the pressure gauge and the flow meter according to the measurement information.

The medical equipment provided by the invention comprises the instrument conveyor provided by the invention and instruments assembled in the instrument conveyor.

The instrument conveyor comprises a handle, a driving mechanism and a sheath tube, wherein the handle is provided with a through hole, and the near end of the sheath tube is arranged in the handle and communicated with the through hole, so that the near end of an inner tube of an instrument in the sheath tube can penetrate out of the handle through the through hole; the driving mechanism is arranged on the handle and connected with the sheath tube, and the driving mechanism can drive the sheath tube to move along the extension direction of the sheath tube relative to the handle; and after the driving mechanism drives the sheath tube to move in place, the sheath tube and the handle are relatively fixed. When the instrument is conveyed, the instrument is arranged in the sheath tube, and the near end of the inner tube connected with the instrument penetrates out from the near end of the sheath tube and then penetrates out from the through hole on the handle. After the driving mechanism drives the sheath tube to move in place, the sheath tube and the handle are relatively fixed, namely when the driving mechanism does not drive the sheath tube, the sheath tube and the handle are relatively fixed, and in the process of releasing the instrument into the body or recovering the instrument, because the near end of the inner tube penetrates out of the handle from the through hole of the handle, the inner tube or the handle can be directly pushed and pulled, so that the sheath tube fixedly arranged on the inner tube and the handle can move relatively, the instrument can move relative to the sheath tube, and the release or recovery of the instrument can be completed; the sheath may also be driven by a drive mechanism mounted on the handle to move relative to the handle, while the inner tube is not moving, so that the sheath may be moved relative to the inner tube to release the instrument out of the distal end of the sheath or to retract the instrument into the distal end of the sheath. Medical care operating personnel can select the mode of oneself liking to release or retrieve the apparatus according to the use habit of oneself, is favorable to medical care operating personnel of different use habits to use this apparatus conveyer, can promote medical care operating personnel's friendship degree. Meanwhile, different sheath feeding forces can be provided frequently by a push-pull mode and a driving mode of a driving mechanism, and generally when larger sheath feeding force is needed, the driving mode of the driving mechanism is preferentially selected, so that the instrument conveyor can be suitable for different sheath feeding forces, can be further applied to various instruments, and solves the problem of limitation of the application range of the instrument conveyor.

The invention also provides medical equipment comprising the instrument conveyor provided by the invention and instruments assembled in the instrument conveyor, and the medical equipment has the same beneficial effects as the instrument conveyor provided by the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in 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 other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic, pictorial illustration, in cross-section, of an instrument transporter and instrument, according to an embodiment of the present invention;

FIG. 2 is a schematic illustration of the instrument transporter provided in accordance with an embodiment of the present invention after assembly of an instrument;

FIG. 3 is a schematic illustration of the released state of the device of FIG. 2;

FIG. 4 is a schematic illustration of an instrument transporter in accordance with an embodiment of the present invention;

FIG. 5 is a schematic structural view of an instrument transporter provided in accordance with an embodiment of the present invention;

FIG. 6 is a schematic cross-sectional view of FIG. 5;

FIG. 7 is an enlarged schematic view of the sheath of FIG. 6 coupled to a handle;

FIG. 8 is an enlarged schematic view of the position of the seal ring of FIG. 6;

FIG. 9 is a schematic view of a securing assembly of the instrument transporter provided in accordance with an embodiment of the present invention;

FIG. 10 is a schematic illustration of a further configuration of an instrument transporter provided in accordance with an embodiment of the present invention.

Icon: 100-a handle; 101-a through hole; 110-a housing; 120-a sealing cover; 210-a rotation block; 300-sheath tube; 301-proximal segment; 302-a body segment; 303-a distal segment; 310-flaring structure; 400-a fixture; 410-a fixed cap; 420-a fixing rod; 421-convex card; 422-perforating; 500-sealing ring; 600-a stationary component; 610-fixed block; 611-fixing holes; 612-a fixed surface; 613-guide groove; 620-screw; 630-a slider; 640-operating knob; 700-a connecting valve; 710-a flow meter; 720-booster pump; 730-a pressure gauge; 740-a control component; 800-an instrument; 810-inner tube.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood 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.

Examples

As shown in fig. 1 to 10, the present embodiment provides an instrument transporter, which comprises a handle 100, a driving mechanism and a sheath 300, wherein the handle 100 is provided with a through hole 101, the proximal end of the sheath 300 is arranged in the handle 100, and the proximal end of the sheath 300 is communicated with the through hole 101, so that the proximal end of an inner tube 810 of an instrument 800 in the sheath 300 can pass out of the handle 100 through the through hole 101. The driving mechanism is arranged on the handle 100, the driving mechanism is connected with the sheath 300, and the driving mechanism can drive the sheath 300 to move along the extending direction of the sheath 300 relative to the handle 100; and after the driving mechanism drives the sheath 300 to move to the proper position, the sheath 300 is fixed relative to the handle 100.

The instrument transporter of the present embodiment is used for implanting a medical instrument 800 such as a blood pumping device into a body through a blood vessel or an organ. The distal end is the end far away from the operation position of the medical staff, namely the end entering or approaching the body, and the proximal end is the end opposite to the distal end. The distal end of the sheath 300 is used for implantation in the body, and the proximal end of the sheath 300 and the handle 100 and the like are disposed outside the body.

It is understood that after the driving mechanism drives the sheath 300 to move to the position, the sheath 300 and the handle 100 are relatively fixed, that is, when the driving mechanism does not drive the sheath 300, the sheath 300 and the handle 100 are relatively fixed, so that when the handle 100 or the inner tube 810 is pushed or pulled, the sheath 300 can move relative to the inner tube 810 of the instrument 800. When the driving mechanism of the present embodiment drives the sheath 300 to move, the inner tube 810 of the instrument 800 is fixed to the handle 100, so the sheath 300 moves relative to the handle 100, that is, the sheath 300 moves relative to the inner tube 810.

When the instrument transporter of the embodiment is used for transporting the instrument 800, the instrument 800 is assembled and arranged in the sheath tube 300, and the proximal end of the inner tube 810 connected with the instrument 800 penetrates out of the handle 100 through the through hole 101 on the handle 100 after penetrating out of the proximal end of the sheath tube 300. In the process of releasing the instrument 800 into the body or recovering the instrument 800, since the proximal end of the inner tube 810 penetrates out of the through hole 101 of the handle 100, the inner tube 810 and the sheath 300 fixedly arranged on the handle 100 can move relatively by directly pushing and pulling the inner tube 810 or the handle 100, so that the instrument 800 can move relative to the sheath 300, and the release or recovery of the instrument 800 is further completed; the sheath 300 may also be driven to move relative to the handle 100 by a drive mechanism mounted on the handle 100, while the inner tube 810 is not moved, so that the sheath 300 may be moved relative to the inner tube 810 to allow the instrument 800 to be released out of the distal end of the sheath 300 or retracted into the distal end of the sheath 300. Medical care operators can select favorite ways to release or recover the instrument 800 according to own use habits, so that the medical care operators with different use habits can use the instrument conveyor, and the friendliness of the instrument conveyor to the medical care operators is improved; meanwhile, different sheath feeding forces can be provided frequently in a push-pull mode and a driving mode of the driving mechanism, and generally when larger sheath feeding forces are needed, the driving mode of the driving mechanism is preferably selected, so that the instrument conveyor can be suitable for different sheath feeding forces and can be further applied to various instruments 800, and the problem of limitation of the application range of the instrument conveyor is solved.

It should be noted that in the push-pull mode, it is often used that a healthcare operator holds handle 100 with one hand, so that handle 100 remains stationary, and the other hand or another healthcare operator assists in pulling out the proximal end of inner tube 810.

In a specific implementation manner, the handle 100 of the instrument transporter of this embodiment includes a housing 110, a rear fixing member 400 is disposed in the housing 110, the fixing member 400 is slidably connected to the housing 110, the fixing member 400 is fixedly connected to the proximal end of the sheath 300, and a driving mechanism is connected to the fixing member 400, and the driving mechanism can drive the fixing member 400 to drive the sheath 300 to move along the extending direction of the sheath 300 relative to the handle 100.

As shown in fig. 6, a hollow chamber is provided in the housing 110, the fixing member 400 is provided in the housing 110, and the length of the fixing member 400 is smaller than that of the hollow chamber, so that the fixing member 400 can move along the hollow chamber of the housing 110, wherein the extending direction of the hollow chamber of the housing 110 is the same as the extending direction of the sheath 300. The drive mechanism is disposed on a side wall of the housing 110 and is at least partially outside the housing 110 to enable direct operation of the drive mechanism by a healthcare operator.

The drive engagement of the mount 400 with the drive mechanism can be varied, and this embodiment provides a drive by rotation. As shown in fig. 6 and 8, the driving mechanism includes a rotating block 210, the rotating block 210 is mounted on the housing 110, the rotating block 210 is provided with a female screw hole, the relative position of the rotating block 210 on the housing 110 is fixed, and the rotating block 210 can rotate around the axis of the female screw hole. The fixing member 400 and the housing 110 are relatively fixed in the circumferential direction of the housing 110, an external thread is arranged on the fixing member 400 along the direction from the proximal end to the distal end of the housing 110, the external thread is screwed in the internal thread hole, and the internal length of the housing 110 along the direction from the proximal end to the distal end is greater than the length of the fixing member 400 along the direction from the proximal end to the distal end of the housing 110.

It will be appreciated that the rotation block 210 corresponds to a rotation sleeve provided with an internally threaded bore, or a knob in the form of a rotation nut. The relative position of the rotating block 210 on the housing 110 is fixed, that is, the rotating block 210 cannot move relative to the housing 110 along the axial direction of the housing 110 and the direction perpendicular to the axial direction, and the rotating block 210 can only rotate relative to the housing 110. Specifically, the rotating block 210 may be mounted in a mounting hole formed in a side wall of the housing 110, the rotating block 210 is mounted in the mounting hole, an internal thread hole of the rotating block 210 is aligned with an extending direction of the housing 110, and the rotating block 210 is rotatably embedded in an inner wall of the housing 110. The external thread extends along a direction pointing to the distal end of the proximal end of the housing 110, i.e. along an extending direction of the hollow chamber of the housing 110, i.e. along the left-right direction as shown in fig. 6, so as to drive the sheath 300 to move back and forth between the proximal end and the distal end, thereby achieving the relative movement between the sheath 300 and the inner tube 810 of the instrument 800.

The medical operator acts on the rotating block 210 to rotate the rotating block 210, and at this time, since the rotating block 210 cannot move relative to the housing 110 and the fixing member 400 is relatively fixed to the housing 110 in the circumferential direction, that is, the fixing member 400 cannot rotate, the fixing member 400 screwed to the rotating block 210 moves along the extending direction of the hollow chamber of the housing 110.

In order to realize the connection between the sheath 300 and the fixing member 400, in one implementation, the fixing member 400 includes a fixing cap 410 and a fixing rod 420, the proximal end of the sheath 300 is provided with a flaring structure 310, an outer sidewall of the proximal end of the sheath 300 abuts against the fixing cap 410, the fixing rod 420 abuts against an inner sidewall of the proximal end of the sheath 300, the fixing rod 420 cooperates with the fixing cap 410 to press and fix the proximal end of the sheath 300, and the fixing rod 420 is provided with a through hole 422 communicated with both the through hole 101 and the sheath 300.

The casing 110 of the sheath 300 is hollow cylindrical, that is, the casing 110 is cylindrical, the cross section of the hollow chamber is also circular, the proximal end and the distal end of the casing 110 are respectively connected with the sealing covers 120 deviating from the convex arc shape, the sheath 300 passes through the sealing cover 120 at the distal end and is arranged in the casing 110, the through hole 101 is arranged on the sealing cover 120 at the proximal end, the fixing member 400 is arranged in the hollow chamber, and the rotating block 210 is arranged on the side wall of the casing 110.

Specifically, as shown in fig. 6, the left and right ends of the housing 110 are sealed by integrally formed sealing caps 120, and the proximal end of the sheath 300 enters the housing 110 through an opening of the sealing cap 120 at the left end of the housing 110. A fixing cap 410 is disposed in a distal end of the housing 110, that is, a left end shown in fig. 6, the flaring structure 310 and the sheath 300 are integrally configured, the flaring structure 310 passes through an opening at the left end of the fixing cap 410 and enters the fixing cap 410, and a length of the flaring structure 310 along an extending direction of the hollow chamber of the housing 110 is smaller than a length of the fixing rod 420. The fixing rod 420 is a threaded rod, a thread matched with the fixing rod 420 is arranged on the fixing cap 410, the left end of the fixing rod 420 abuts against the inner side wall of the flaring structure 310, the middle of the fixing rod 420 is in threaded connection with the fixing cap 410, and the flaring structure 310 is tightly pressed between the fixing rod 420 and the fixing cap 410 through the screwing action of the fixing rod 420 and the fixing cap 410, so that the connection between the sheath tube 300 and the fixing member 400 is realized.

Wherein, one end of the fixing rod 420 far from the fixing cap 410 is also provided with a thread, which is in threaded connection with the internal thread hole of the rotating block 210, so as to be able to drive the fixing rod 420 to drive the movement of the sheath 300 through rotating the rotating block 210.

As shown in fig. 7, the fixing cap 410 is also flared, and the fixing cap 410 is in conformity with the flared shape of the flared structure 310 of the sheath 300, while the outer diameter of the end of the fixing rod 420 connected to the fixing cap 410 is gradually reduced, so that the fixing rod 420 can be matched with the flared structure 310 and firmly press and fix the flared structure 310. When the rotating block 210 drives the fixing rod 420 to move, the fixing cap 410 moves synchronously.

It is understood that the sheath 300 is connected to the holder 400 through the fixing cap 410 and the fixing rod 420, and in fact, the sheath 300 is connected to the handle 100 through the holder 400. The connection end of the sheath 300 and the handle 100 is a flaring structure 310, and the connection is realized by the pressing force of the fixing cap 410 and the fixing rod 420, so that the operation is convenient and fast.

The through hole 422 of the fixing rod 420 is used for the inner tube 810 of the instrument 800 to pass through, and the inner tube 810 of the specific instrument 800 passes through the flaring structure 310 of the sheath tube 300, enters the through hole 422 of the fixing rod 420, passes through the through hole 422, enters the through hole 101 of the handle 100, and then passes through the handle 100, so as to facilitate the pushing and pulling operation of the inner tube 810.

Further, the fixing rod 420 is further provided with a clamping protrusion 421, the clamping protrusion 421 can be used for positioning the mounting position of the fixing cap 410 on the fixing rod 420, and meanwhile, the clamping protrusion 421 and the inner side wall of the housing 110 can slide but have a small gap, so that a certain guiding effect on the movement of the fixing rod 420 can be achieved, and the fixing rod 420 can be prevented from rotating.

Further, as shown in fig. 8, a sealing ring 500 is fixed in the through hole 422, and the sealing ring 500 is used for sealing and arranging on the outer circumferential wall of the inner tube 810 of the instrument 800.

The sealing ring 500 may be an O-ring, and the sealing ring 500 can ensure the sealing between the inner tube 810 of the device 800 and the sheath tube 300, and prevent blood from flowing out from the inner and outer tube gaps between the sheath tube 300 and the inner tube 810.

It should be noted that the driving engagement manner of the fixing member 400 and the driving mechanism is not limited to the above form, for example, the driving mechanism may be a push-pull rod, in which an opening is disposed on the sidewall of the housing 110 along the extending direction of the hollow chamber, the push-pull rod is inserted into the opening and connected to the fixing member 400, and the driving of the fixing member 400 by the push-pull action of the push-pull rod drives the sheath tube 300 to move along the extending direction of the hollow chamber, that is, the extending direction of the sheath tube 300.

In a further aspect, as shown in fig. 1, 2, 3 and 6, the instrument transporter of the present embodiment further includes a securing assembly 600, the securing assembly 600 being disposed at an end of the handle 100 distal from the drive mechanism, the securing assembly 600 being configured to secure a proximal end of the inner tube 810 of the instrument 800.

Specifically, in one implementation, as shown in fig. 6 and 9, the fixing assembly 600 includes a fixing block 610, a screw 620 and a slider 630, the fixing block 610 is fixed on the handle 100, a fixing hole 611 for passing the proximal end of the inner tube 810 of the instrument 800 is provided on the fixing block 610, and the fixing block 610 is provided with a fixing surface 612 on one side (referring to the lower side shown in fig. 9) of the axis of the fixing hole 611; the screw 620 is screwed on the side (upper side shown in fig. 9) of the fixing block 610 opposite to the fixing surface 612, the screw 620 is arranged perpendicular to the axis of the fixing hole 611, the screw 620 is connected with the slider 630, and the screw 620 drives the slider 630 to approach or leave the fixing surface 612 by screwing in or out relative to the fixing block 610.

Further, an operation knob 640 is connected to the screw 620 to facilitate a rotation operation of the screw 620.

The inner tube 810 can be pressed by rotating the operation knob 640 to push the sliding block 630, so that the proximal end of the inner tube 810 is fixed, and the inner tube 810 is prevented from being separated from the handle 100 when the sheath 300 is driven by the driving mechanism to move.

The fixing block 610 is further provided with a guide groove 613 on a side (upper side as viewed in fig. 9) opposite to the fixing surface 612, the guide groove 613 extends perpendicularly to the axis of the fixing hole 611, and the slider 630 is disposed in the guide groove 613. The guide groove 613 can guide the movement of the sliding block 630, thereby preventing the sliding block 630 from shaking.

As shown in fig. 5 and 6, the distal end of the sheath 300 of the instrument transporter of the present embodiment has a larger inner diameter than the proximal end of the sheath 300. Specifically, the sheath 300 includes a proximal section 301, a main body section 302 and a distal section 303 connected in sequence, the proximal section 301 and the main body section 302 have the same inner diameter, the proximal section 301 and the main body section 302 have the same outer diameter, the distal section 303 has an inner diameter larger than the inner diameter of the proximal section 301, and the distal section 303 has an outer diameter larger than the outer diameter of the proximal section 301.

It is understood that sheath 300 is generally a flexible tube that can be bent to accommodate the orientation of a blood vessel or organ within the human body. The sheath 300 can be designed into a diameter-variable structure according to the gripping size of the instrument 800, that is, the diameter of the distal end of the sheath 300 is larger than that of the proximal end, and the inner diameter of the distal end is larger, so that the instrument 800 can be conveniently recovered or released; when the blood vessel is implanted, the near-end pipe diameter is small, so that the blood flow in the blood vessel can be prevented from being blocked, and the normal flow of the blood can be ensured.

Further, the mechanical transporter of the present embodiment further includes a connection valve 700, and the connection valve 700 communicates with the through hole 101 through a connection pipe. The connecting valve 700 is provided with an infusion port, and the infusion port is connected with a flow meter 710 and/or a booster pump 720; and/or; the connection valve 700 is provided with a pressure measuring port on which a pressure gauge 730 is provided.

Specifically, the connection valve 700 may be provided with an independent infusion port for delivering fluid between the sheath 300 and the inner tube 810 of the instrument 800. The flow meter 710 or the booster pump 720 may be separately provided on the liquid transfer port, or the flow meter 710 and the booster pump 720 may be simultaneously provided in sequence. The flow meter 710 can be an electronic flow meter, the electronic flow meter is designed at the infusion port, the real-time flow of the infusion port can be displayed, and the booster pump 720 can be designed at the infusion port to increase the pressure of fluid input in order to ensure smooth infusion due to certain pressure in the blood vessel. The connection valve 700 of the instrument transporter of this embodiment may be removably attached to the handle 100 or may be non-removably attached to the handle 100. Connection valve 700 may be used to inject saline to vent the internal air between sheath 300 and inner tube 810 when instrument 800 is installed. For the operation using the sheath 300 for a short period, the instrument transporter of the embodiment can reserve the sheath 300 in the body until the operation is finished, and then withdraw the instrument 800 into the sheath 300 and take out the same; in order to prevent thrombus from being generated in the gap between the inner and outer tubes formed by the sheath 300 and the inner tube 810 when the sheath 300 is placed in the body for a short period of time, a solution with heparin may be injected through the infusion port of the connection valve 700.

The connection valve 700 may also be independently provided with a pressure measuring port, the pressure measuring port is provided with a pressure gauge 730, and the pressure gauge 730 is used to measure the blood pressure in the sheath 300. Because blood is detained in sheath 300, easy thrombus formation, so pressure gauge 730 pressure can reduce thereupon, can know sheath 300 internal pressure through the measurement of pressure gauge 730 to convenient control infusion operation.

It should be noted that the pressure measuring port and the infusion port may be the same port, that is, one port of the connection valve 700 may be connected to the flow meter 710, the pressure increasing pump 720 and the pressure gauge 730 at the same time, and the flow meter 710, the pressure increasing pump 720 and the pressure gauge 730 may be opened one or more times as required. The pressure measuring port and the infusion port may be different ports, at this time, the connection valve 700 is a three-way valve, one of the two ports of the three-way valve is connected and communicated with the connection pipe, one of the other two ports is the infusion port, the infusion port is provided with a booster pump 720 and a flow meter 710, the remaining one port is the pressure measuring port, and the pressure measuring port is provided with a pressure gauge 730.

As shown in FIG. 10, the instrument transporter of the present embodiment employs a three-way valve, and connects the pressure gauge 730, the flow meter 710, and the pressurizing pump 720 at the same time.

Further, the instrument transporter of the present embodiment further includes a control assembly 740, the control assembly 740 is connected to the pressure gauge 730, the pressurizing pump 720 and the flow meter 710, and the control assembly 740 is capable of receiving the measurement information of the pressure gauge 730 and controlling the actions of the pressurizing pump 720 and the flow meter 710 according to the measurement information. Specifically, the pressure gauge 730 of the connection valve 700, that is, the three-way valve, is used to measure the blood pressure in the sheath 300, and the pressure of the pressure gauge 730 is reduced because blood is retained in the sheath 300, which is likely to form thrombus and hinder the infusion. The threshold value is set in the control assembly 740, and when the pressure corresponding to the detection information of the pressure gauge 730 acquired by the control assembly 740 is lower than a preset value, the booster pump 720 can be automatically controlled to be started, and the flow rate of the input liquid is controlled by the flow meter 710.

The control module 740 may be a conventional single chip microcomputer or the like capable of performing calculation, information acquisition and processing, or may be a computer or the like for detecting patient information for a hospital. The instrument conveyor is a conveying sheath tube capable of being installed quickly, can be used together with an implant (namely an instrument) with an inner tube (inner catheter), and can realize two modes of rotation, drawing and pushing.

The split structure of the instrument transporter and the instrument 800 of the present embodiment is shown in fig. 1, and fig. 2 shows the instrument 800 and the instrument transporter shown in fig. 1 after being installed. When the instrument 800 is installed, the instrument 800 may be crimped into place by passing the inner tube 810 of the instrument 800 through the instrument transporter. The releasing process of the instrument 800 can be divided into two modes, the rotating block 210 can be used for releasing, and the releasing can also be realized by directly pushing and pulling the inner tube 810 of the instrument 800, and the released state is shown in fig. 3. When the rotation block 210 is used for releasing, the operation knob 640 needs to be rotated to fix the inner tube 810. Two optional release schemes of the instrument 800 can well meet the requirements of instruments 800 with different sheath advancing forces, the instrument 800 with large sheath advancing force can be released by using the rotating block 210 in a biased mode, and the instrument 800 with small sheath advancing force can be directly pulled. Meanwhile, the two optional release schemes can also meet the use habits of different users and have optional space.

In summary, the device transporter of the embodiment can be used for releasing vascular stents and other self-expandable vascular medical devices. The sheath can be directly placed in the body for a short-term operation, and can be placed in the body for 0-24 hours according to the operation time until the operation is finished, and the sheath 300 is pulled out by withdrawing the instrument 800. For surgical instruments 800 requiring long-term implantation, the sheath 300 may be withdrawn directly after placement of the instrument 800 is complete. The instrument transporter of the embodiment can rapidly assemble and disassemble the instrument 800, and can select two release modes including rotary release and push-pull release according to the sheath advancing force of the instrument 800 and the use habit of a client. Compared with the existing conveying sheath, the instrument conveyor of the embodiment has wider application range of instruments, and provides selectable release modes for users. Further, the instrument transporter of the embodiment is provided with a fixing assembly 600, so that the inner tube 810 can be fixed; the flow meter 710 and the booster pump 720 are designed through the three-way valve, and can be used for cleaning thrombus between the inner pipe and the outer pipe; the distal end of the sheath 300 is designed into a reducing structure, so that the sheath can adapt to implantation instruments 800 with different crimping diameters, and the diameter of the proximal end is designed to be smaller so as to prevent the vessel from being blocked and cause hemodynamics instability; the sealing ring 500 may prevent blood flow from splashing out.

As shown in fig. 2 and 3, the present embodiment also provides a medical apparatus including the instrument transporter provided in the present embodiment and an instrument 800 fitted in the instrument transporter. Wherein the device 800 may be a vascular stent and other self-expandable vascular medical devices. The assembly of a particular instrument 800 to an instrument transporter can be seen in the description of the instrument transporter of this embodiment.

The medical apparatus of the present embodiment has the same advantageous effects as the instrument transporter provided by the present embodiment.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.