CN112690858B

CN112690858B - Clamping device and surgical operation instrument

Info

Publication number: CN112690858B
Application number: CN201911013037.7A
Authority: CN
Inventors: 张翚; 沈清
Original assignee: Suzhou IntoCare Medical Technology Co Ltd
Current assignee: Suzhou IntoCare Medical Technology Co Ltd
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2022-03-29
Anticipated expiration: 2039-10-23
Also published as: WO2021078069A1; CN112690858A

Abstract

The application relates to a bin clamping device and a surgical operation instrument, wherein the bin clamping device comprises a bin clamping shell with a cavity, a bin clamping assembly and a pushing and clamping assembly for pushing the bin clamping assembly to realize clip conveying, the pushing and clamping assembly comprises a pushing and clamping piece, a first elastic piece and a braking piece for enabling the first elastic piece to be in a compressed state are arranged in the cavity, the first elastic piece is arranged between the pushing and clamping assembly and the bin clamping assembly, and the first elastic piece can stretch along the lengthwise direction of the cavity; when the first elastic piece is in a compressed state, the clamping cabin assembly is accommodated in the cavity, when external force acts on the braking piece, the force of the braking piece acting on the first elastic piece is removed, the first elastic piece deforms to push the clamping cabin assembly to move out of the cavity, and when the first elastic piece is in an extended state, the clamping cabin assembly is connected with the pushing clamping piece. The cartridge device of the application is simple and small in structure, thereby being beneficial to reducing the pressure for storing medical instruments.

Description

Clamping device and surgical operation instrument

Technical Field

The invention relates to a bin clamping device and a surgical operation instrument, and belongs to the technical field of medical instruments.

Background

To fully expose the surgical field during surgery, ligation of blood vessels around the target tissue is required to prevent bleeding. Hemostasis technology has become one of the cores of basic operation technology of surgical operation, and the surgical operation of any part of human body involves bleeding and hemostasis almost without exception, and generally the hemostasis is closed by using a clip applying and ligating clip. However, in the operation process, due to the limitation of the number of clamps, an operator needs to carry out clamp application operation for many times, so that the working efficiency is reduced, the operation time is increased, the bleeding amount of a patient is increased, the recovery time of the patient is prolonged, and the economic pressure of the patient is increased. Accordingly, clip appliers capable of continuous clip feeding have come to work, but the clip magazine devices capable of continuous clip feeding in the prior art have a large volume, thereby increasing the pressure for storing medical instruments.

Disclosure of Invention

The invention aims to provide a clamping cabin device and a surgical operation instrument, the clamping cabin device and the surgical operation instrument, wherein the clamping cabin device is small in size and capable of realizing continuous clip feeding, and the problem of pressure of a storage clamping cabin device in the prior art is solved.

In order to achieve the purpose, the invention provides the following technical scheme: a cartridge device is detachably mounted on a surgical instrument and comprises a cartridge shell with a cavity, a cartridge assembly and a push-clamp assembly for pushing the cartridge assembly to realize clip conveying, wherein the push-clamp assembly comprises a push-clamp piece, a first elastic piece and a brake piece for enabling the first elastic piece to be in a compressed state are arranged in the cavity, the first elastic piece is arranged between the push-clamp assembly and the cartridge assembly, and the first elastic piece can stretch along the lengthwise direction of the cavity; when the first elastic piece is in the compressed state, the bin clamping assembly is contained in the cavity, when external force acts on the braking piece, the force of the braking piece acting on the first elastic piece is removed, the first elastic piece deforms to push the bin clamping assembly to move out of the cavity, and when the first elastic piece is in the stretching state, the bin clamping assembly is connected with the pushing clamping piece.

Further, press from both sides the storehouse subassembly and be in including the clip tray that is used for placing the ligature clamp and setting the clip tray is kept away from push away the clamp of pressing from both sides subassembly one side, the clip tray is close to one side of pushing away the clamp subassembly is provided with the lug, works as when first elastic component is in the state of stretching out, the lug with push away the clamping piece card and hold.

Furthermore, an elongated slot connected with the protruding block is arranged on the push-clamping piece, the elongated slot is provided with a first end far away from the clamp and a second end close to the clamp, an elastic sheet is arranged on one side of the elongated slot close to the second end, when the first elastic piece is in a compressed state, the protruding block is located at the first end, and when the first elastic piece is in an extended state, the protruding block slides to the second end of the elongated slot to be clamped with the elastic sheet.

Furthermore, a clamping groove used for being matched with the convex block is formed between the elastic sheet and the long groove in an enclosing mode.

Furthermore, the elastic sheet is provided with an inner surface facing the clamping bin assembly, the inner surface is an inclined surface, the inclined surface is arranged in an upward inclined mode from one side close to the clamp to one side far away from the clamp, and the convex block slides to the clamping groove along the inclined surface and is clamped with the clamping groove.

Further, the braking member is arranged between the first elastic member and the cartridge component.

Furthermore, the braking member comprises a sliding block with a containing hole, a third elastic member arranged in the sliding block and a ball body arranged at two ends of the third elastic member and capable of contracting into the containing hole.

Furthermore, a first through hole and a second through hole are formed in the bin clamping shell, the braking piece is clamped with the first through hole to enable the first elastic piece to be in a compressed state, and the braking piece is clamped with the second through hole to enable the first elastic piece to be in a stretched state.

Furthermore, the push clamp assembly further comprises a push rod extending into the cavity and a push block arranged on the push rod and capable of sliding relative to the push rod, and the push clamp piece is connected with the push block.

Furthermore, the push-clamp assembly further comprises a second elastic piece sleeved on the push rod, one end of the push rod is connected with the first elastic piece, the other end of the push rod is connected with the push block, and the second elastic piece is clamped between the push block and the bin clamping assembly.

Furthermore, a rack meshed with a gear of the driving device is arranged on the push block.

Further, the push clip is at least partially received within the cavity.

The invention also provides a surgical operation instrument which is characterized by comprising a holding part provided with a driving device and a working part connected with the holding part, wherein the working part comprises a shell, a firing force application part arranged in the shell and connected with the driving device, a firing sleeve connected with the firing force application part, and the cartridge device, the shell is provided with an inner cavity, an opening is formed in the shell on one side of the inner cavity, and the cartridge device passes through the inner cavity through the opening and is further inserted into the firing sleeve.

Furthermore, an opening is formed in the firing sleeve, when the first elastic piece is in a compressed state, the braking piece is located on the side of the opening, and the external force is applied to the braking piece through the opening.

The invention has the beneficial effects that: the ejection type cabin clamping device comprises a first elastic piece and a braking piece, the cabin clamping assembly is accommodated in the cavity by the first elastic piece under the action of the braking piece, when external force acts on the braking piece to cause the force of the braking piece acting on the first elastic piece to be cancelled, the first elastic piece pushes the cabin clamping assembly out of the cavity under the action of the elastic force of the first elastic piece to carry out clamping sending action, continuous clamping sending is realized, and the integral structure of the cabin clamping device becomes small and light, so that the pressure of storing medical instruments is reduced.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.

Drawings

FIG. 1 is a schematic view of the construction of the surgical instrument of the present invention.

Fig. 2 is a cross-sectional view of fig. 1.

Fig. 3 is a partially enlarged view of fig. 2.

Fig. 4 is a schematic structural view of the cartridge device of fig. 1 when the first elastic member is compressed.

Fig. 5 is a partial structural schematic diagram of fig. 4.

Fig. 6 is a partially enlarged view of fig. 5.

Fig. 7 is a schematic cross-sectional view of fig. 4.

Fig. 8 is a schematic structural view of the extended state of the first elastic member of the cartridge device in fig. 1.

Fig. 9 is a schematic cross-sectional view of fig. 8.

Fig. 10 is a partial exploded view of fig. 9.

FIG. 11 is a schematic structural view of the firing sleeve of FIG. 1.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

Referring to fig. 1 to 11, the surgical instrument in a preferred embodiment of the present invention includes a holding portion 200 provided with a driving device 2 and a working portion 100 connected to the holding portion 200, wherein the working portion 100 includes a housing 1, a firing force-applying member 3 disposed in the housing 1 and connected to the driving device 2, a firing sleeve 4 connected to the firing force-applying member 3, and a cartridge device 5 driven by the driving device 2. Wherein, the shell 1 has an inner cavity 11, and an opening 12 has been seted up on the shell 1 of inner cavity 11 one side, and the storehouse device 5 is inserted to the percussion sleeve 4 in order to pass through inner cavity 11 in order to press from both sides through opening 12. The purpose of so setting is: the whole cabin clamping device 5 and the surgical operation instrument are detachably arranged, when the ligation clamp 524 in the cabin clamping device 5 is used up, the cabin clamping device 5 can be taken out from the opening 12 to be replaced by a new cabin clamping device 5, the repeated utilization of the holding part 200 and the working part 100 is realized, and the effects of saving resources and cost are achieved.

Referring to fig. 3 to 9, the magazine device 5 includes a magazine housing 51 having a cavity 511, a magazine assembly 52, and a pushing assembly 53 for pushing the magazine assembly 52 to deliver clips, wherein the pushing assembly 53 includes a pushing clip 531, and the pushing clip 531 is at least partially accommodated in the cavity 511. In the present embodiment, both ends of the push-clip sheet 531 are disposed outside the cavity 511, and the rest is disposed inside the cavity 511. Indeed, in other embodiments, the push-clip 531 may be entirely accommodated in the cavity 511, which is not limited herein according to the actual situation.

The cavity 511 is provided with a first elastic member 54 and a stopping member 55 for making the first elastic member 54 in a compressed state, the first elastic member 54 is arranged between the push clamp assembly 53 and the cartridge assembly 52, and the first elastic member 54 can stretch along the longitudinal direction of the cavity 511. When the first elastic member 54 is in a compressed state, the cartridge 52 is accommodated in the cavity 511, when an external force acts on the braking member 55, so that the force of the braking member 55 acting on the first elastic member 54 is removed, the first elastic member 54 deforms to push the cartridge 52 to move out of the cavity 511, and when the first elastic member 54 is in an extended state, the cartridge 52 is connected with the push-clip piece 531, so that the cartridge 52 is not separated from the push-clip 53. When the cartridge device 5 is just installed in the cavity 511, the first elastic member 54 is in a compressed state due to the action of the stopper 55.

The braking member 55 is disposed between the first elastic member 54 and the cartridge housing 52, the cartridge housing 51 is provided with a first through hole 512 and a second through hole 513, the braking member 55 is held by the first through hole 512 so that the first elastic member 54 is in a compressed state, and the cartridge housing 52 is accommodated in the cavity 511; the stopper 55 is engaged with the second through hole 513 to allow the first elastic member 54 to be in the extended state, and the cartridge assembly 52 is pushed out of the cavity 511. The stopper 55 includes a slider having a receiving hole, a third elastic member disposed in the slider, and balls disposed at two ends of the third elastic member and retractable into the receiving hole, wherein the balls disposed at two ends of the slider are respectively retained with the first through hole 512 and the second through hole 513 under the elastic force of the third elastic member 44.

The clip magazine assembly 52 includes a clip tray 521 for placing the ligation clip 524 and a clip 522 disposed on a side of the clip tray 521 away from the clip pushing assembly 53, and the connection between the clip 522 and the clip tray 521 is conventional and will not be described herein. The clip tray 521 is provided with a protrusion 525 on one side thereof close to the clip pushing assembly 53, and the cartridge assembly 52 further includes a pushing piece 523 covering the clip tray 521, wherein the protrusion 525 is on the pushing piece 523. More specifically, the pushing clip 531 is connected to the pushing clip 523, which is butted with the locking groove 5315 through the protrusion 525. The pushing piece 523 is provided with a plurality of ratchet teeth arranged towards the clamp 522, and the ratchet teeth support the ligation clip 524 to push the ligation clip 524 to move towards the clamp 522 under the driving of the pushing clip 531.

When the first elastic member 54 is in the extended state, the protrusion 525 is engaged with the push-clip piece 531. Specifically, the push-clip piece 531 is provided with a long groove 5311 connected with the protrusion 525, the long groove 5311 has a first end far away from the clamp 522 and a second end close to the clamp 522, one side of the long groove 5311 close to the second end is provided with an elastic piece 5312, when the first elastic piece 54 is in a compressed state, the protrusion 525 is at the first end, and when the first elastic piece 54 is in an extended state, the protrusion 525 slides to the second end of the long groove 5311 to be clamped with the elastic piece 5312. More specifically, a slot 5315 is formed between the elastic piece 5312 and the slot 5311 for engaging with the protrusion 525. The elastic piece 5312 has an inner surface 5313 facing the cartridge component 52, the inner surface 5313 is an inclined surface 5314, the inclined surface 5314 is inclined upward from a side close to the clamp 522 to a side away from the clamp 522, and the protrusion 525 slides to the engaging groove 5315 along the inclined surface 5314 and is engaged with the engaging groove 5315. Extending along the moving direction of the bin clamping assembly, the elastic sheet 5312 sequentially comprises a first sheet portion 5316, a bent portion 5317 and a second sheet portion 5318, the bent portion 5317 is connected with the first sheet portion 5316 and the second sheet portion 5318, the inner surface 5313 is arranged on the bent portion 5317, the height difference between the first sheet portion 5316 and the bin clamping assembly 52 is greater than the height difference between the second sheet portion 5318 and the bin clamping assembly 52, specifically, the height difference between the first sheet portion 5316 and the bin clamping assembly 52 is slightly greater than the thickness of the bump 525, and the height difference between the second sheet portion 5318 and the bin clamping assembly 52 is less than the thickness of the bump 525. The locking groove 5315 is formed by surrounding the end of the second sheet portion 5318 and the long groove 5311, and the end of the second sheet portion 5318 is an inward concave arc-shaped surface.

Indeed, in other embodiments, the protrusion 525 may also be provided with an inclined surface 5314, the inclined surface 5314 is inclined upward from a side close to the push-clip assembly 53 to a side of the clamp 522, and the protrusion 525 slides to the elastic sheet 5312 through the inclined surface 5314 and then is clamped with the clamping groove 5315. However, since the clip pushing piece 531 is easy to slide with the protrusion 525 during pushing the protrusion 525, the inclined surface 5314 easily causes the protrusion 525 to slide out of the slot 5315 along the inclined surface 5314, so that the magazine unit 5 cannot feed clips.

The push-clamp assembly 53 further includes a push rod 532 extending into the cavity 511, a push block 533 disposed on the push rod 532 and capable of sliding relative to the push rod 532, and a second elastic member 534 disposed on the push rod 532, wherein the push-clamp piece 531 is connected to the push block 533. One end of the push rod 532 is connected to the first elastic member 54, and the other end is connected to the push block 533. The other end of the push-clip piece 531 is connected to the push block 533, the second elastic element 534 is disposed between the magazine clamping assembly 52 and the push block, and more specifically, the second elastic element 534 is disposed between the push block 533 and the first elastic element 54, and the second elastic element 534 has a buffering function, so as to prevent rigid impact between the push block 533 and the magazine clamping housing 51 to protect the push rod 532, the push block 533 and the push-clip piece 531. The end of the pushing block 533 is further provided with a stopper 535 and a pulling block 537 which are clamped with the opening, and the stopper 535 is arranged close to the pushing block. The stop 535 is used to prevent the push-clamp assembly 53 from fully entering the cavity 511 under the driving of the driving device 2, so that the entire device cannot work, and the pull block 537 is used to pull out the entire magazine device 5 for replacement when the ligation clip 524 in the magazine assembly 52 is fully used up.

The driving device 2 comprises a motor 21, a bevel gear 22 connected with the motor 21, a rack assembly 23 meshed with the bevel gear 22 and a pinion 24 meshed with the rack assembly 23, the rack assembly 23 comprises a screw 231 connected with the bevel gear 22 and a first rack 232 connected with the screw 231, and the first rack 232 is simultaneously connected with the firing force application member 3. In view of the above, in order to provide a better connection with the driving device 2, the pushing block 533 is provided with a rack 536 that engages with the gear of the driving device 2, and the rack engages with the pinion 24. The clamp feeding and firing process of the surgical operation instrument comprises the following steps: the motor 21 rotates to drive the bevel gear 22 to rotate so as to drive the screw 231 to retreat and further drive the first rack 232 to retreat, the first rack 232 retreats until being meshed with the pinion 24 so as to drive the pinion 24 to rotate clockwise, the pinion 24 rotates clockwise so as to push the push block 533 to move forward on the push rod 532, and the push block 533 moves forward so as to drive the push clamping piece 531 to carry out clamping; the motor 21 rotates and drives the bevel gear 22 to rotate so as to drive the screw 231 to move forward and further drive the first rack 232 to move forward, the first rack 232 moves forward and drives the percussion force application member 3 to move forward, and the percussion force application member 3 moves forward and further drives the percussion sleeve 4 to move forward compared with the clamping device 5 so as to close the clamp 522 and complete the ligation action.

Referring to fig. 2 and 3, the firing force application member 3 includes a firing block 31 connected to the first rack 232 and a connecting block 32 for connecting the firing block 31 and the firing sleeve 4, the firing sleeve 4 is connected to the housing 1, the firing sleeve 4 has a skirt 41 folded outwards, and the skirt 41 is connected to the connecting block 32. The drive means 2 drives the firing block 31 forward to drive the connecting block 32 and thus the skirt 41 to move the entire firing sleeve 4. The housing 1 is provided with a protrusion, and the firing sleeve 4 is provided with a sliding groove 42 sliding along the protrusion. The firing sleeve 4 is further provided with an opening 43, when the first elastic member 54 is in a compressed state, the stopper 55 is located at the side of the opening 43, and an external force is applied to the stopper 55 through the opening 43. The position of the opening 43 is the same as that of the first through hole 512, the stopper 55 is clamped with the opening 43 through the first through hole 512, and an external force is applied to the opening 43 and the first through hole 512 to slide the stopper 55 to the second through hole 513. The external force may be applied directly by a hand of a human body or may be applied by an external device, such as tweezers, etc., and is not particularly limited herein, depending on the actual situation. Indeed, a small protrusion may be disposed on the firing sleeve 4 corresponding to the first through hole 512, and when the first through hole 512 reaches the small protrusion, the small protrusion presses the stopper 55 inward, so that the stopper 55 slides from the first through hole 512 to the second through hole 513 and is retained with the second through hole 513, which is not limited herein.

The grip portion 200 includes a grip housing 201, and the grip housing 201 is formed with a housing cavity in which the driving device 2 is disposed, for the sake of the rationality of the layout of internal devices and the aesthetic appearance. The holding portion 200 further includes a control circuit disposed in the accommodating cavity and electrically connected to the driving device 2, and a first switch 202 and a second switch 203 disposed on the holding housing 201 and coupled to the control circuit, wherein the first switch 202 is used for driving the cartridge device 5 to implement clip feeding, and the second switch 203 is used for driving the trigger force applying member 3 to further drive the trigger sleeve 4 to move compared with the cartridge device 5 so as to ligate the target tissue. It is needless to say that the driving device 2, the control circuit, the first switch 202, and the second switch 203 may be provided on the working portion 100, and are not particularly limited herein depending on the actual situation.

In the present embodiment, the first elastic element 54, the second elastic element 534 and the third elastic element 44 are all springs, and indeed, in other embodiments, the first elastic element 54, the second elastic element 534 and the third elastic element 44 may be other elements, and are not limited herein according to the actual situation.

In summary, the following steps: by arranging the magazine device 5 in an ejection type, the ejection type magazine device 5 comprises a first elastic member 54 and a braking member 55, the first elastic member 54 accommodates the magazine assembly 52 in the cavity 511 under the action of the braking member 55, when an external force acts on the braking member 55 to cancel the force of the braking member 55 acting on the first elastic member 54, the first elastic member 54 pushes the magazine assembly 52 out of the cavity 511 under the action of the elastic force thereof to perform a clip feeding action, and the whole structure of the magazine device 5 becomes small and light while continuous clip feeding is realized, thereby being beneficial to reducing the pressure for storing medical instruments.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A cartridge device is detachably mounted on a surgical instrument and is characterized by comprising a cartridge shell with a cavity, a cartridge assembly and a push-clamp assembly for pushing the cartridge assembly to realize clip feeding, wherein the push-clamp assembly comprises a push-clamp piece, a first elastic piece and a braking piece for enabling the first elastic piece to be in a compressed state are arranged in the cavity, the first elastic piece is arranged between the push-clamp assembly and the cartridge assembly, and the first elastic piece can stretch along the lengthwise direction of the cavity; when the first elastic piece is in the compressed state, the bin clamping assembly is contained in the cavity, when external force acts on the braking piece, the force of the braking piece acting on the first elastic piece is removed, the first elastic piece deforms to push the bin clamping assembly to move out of the cavity, and when the first elastic piece is in the stretching state, the bin clamping assembly is connected with the pushing clamping piece.

2. The cartridge device of claim 1, wherein the cartridge assembly comprises a clip tray for placing a ligation clip and a clamp disposed on a side of the clip tray away from the clip pushing assembly, wherein a protrusion is disposed on a side of the clip tray close to the clip pushing assembly, and the protrusion is engaged with the clip pushing assembly when the first elastic member is in an extended state.

3. The device as claimed in claim 2, wherein the push-clip piece has a long slot connected to the protrusion, the long slot has a first end far away from the clamp and a second end near the clamp, a resilient piece is disposed on a side of the long slot near the second end, the protrusion is located at the first end when the first resilient member is in a compressed state, and the protrusion slides to the second end of the long slot to be engaged with the resilient piece when the first resilient member is in an extended state.

4. The bin clamping device as claimed in claim 3, wherein a slot for matching with the projection is formed between the elastic sheet and the elongated slot.

5. The cartridge device of claim 4, wherein the spring has an inner surface facing the cartridge assembly, the inner surface is an inclined surface, the inclined surface is inclined upward from a side close to the clamp to a side away from the clamp, and the protrusion slides along the inclined surface to the engaging groove and is engaged with the engaging groove.

6. The cartridge device of claim 1, wherein said detent is disposed between said first resilient member and said cartridge assembly.

7. The cartridge device of claim 1, wherein the stopping member comprises a slider having a receiving hole, a third elastic member disposed in the slider, and a ball disposed at two ends of the third elastic member and retractable into the receiving hole.

8. The cartridge device of claim 1, wherein the cartridge housing has a first through hole and a second through hole, the stopper is engaged with the first through hole to compress the first elastic member, and the stopper is engaged with the second through hole to expand the first elastic member.

9. The cartridge device of claim 1, wherein the push-clamp assembly further comprises a push rod extending into the cavity and a push block disposed on the push rod and slidable relative to the push rod, the push-clamp piece being connected to the push block.

10. The cartridge device of claim 9, wherein the pushing and clamping assembly further comprises a second elastic member sleeved on the push rod, one end of the push rod is connected with the first elastic member, the other end of the push rod is connected with the push block, and the second elastic member is clamped between the push block and the cartridge component.

11. The cartridge device according to claim 9, wherein the pushing block is provided with a rack which is engaged with a gear of the driving device.

12. The cartridge device of claim 1, wherein the push clip is at least partially received within the cavity.

13. A surgical operation instrument is characterized by comprising a holding part provided with a driving device and a working part connected with the holding part, wherein the working part comprises a shell, a firing force application part arranged in the shell and connected with the driving device, a firing sleeve connected with the firing force application part, and a cartridge device according to any one of claims 1 to 12, the shell is provided with an inner cavity, an opening is formed in the shell on one side of the inner cavity, and the cartridge device passes through the inner cavity through the opening and is inserted into the firing sleeve.

14. The surgical instrument of claim 13, wherein said firing sleeve defines an opening, said detent being positioned to a side of said opening when said first resilient member is in a compressed state, said external force being applied to said detent through said opening.