Hemostasis and suturing conjoined dual-clamp capable of passing through channel of digestive endoscope and operation method

Patent metadata

Field	Value
Publication number	US-12096942-B2
Application number	US-202117317109-A
Country	US
Kind code	B2
Filing date	May 11, 2021
Priority date	Nov 29, 2018
Publication date	Sep 24, 2024
Grant date	Sep 24, 2024

Abstract

A hemostasis and suturing conjoined dual-clamp capable of passing through a channel of a digestive endoscope and an operation method, the dual-clamp including a handle, a clamping assembly and a driving assembly. The clamping assembly includes a clamping holder and two clamping portions, and the driving assembly is detachably connected to the clamping assembly. A hemostasis and suturing conjoined dual-clamp capable of passing through a channel of a digestive endoscope and an operation method, two clamping arms of the dual-clamp are able to individually open, clamp and close, have a function of double-sided clamping and closing a large defective wound, and are able to be conveniently separated from the driving assembly, overcoming the defects that conventional hemostatic clamps can only perform one-sided clamping, thereby it is difficult to treat defective wounds that are large or in difficult operating sites.

First claim

What is claimed is:

1. A hemostasis and suturing conjoined dual-clamp capable of passing through a channel of a digestive endoscope, comprising: a handle, a clamping assembly and a driving assembly, wherein the clamping assembly is provided at a front end of the handle, the clamping assembly comprises a clamping holder and two clamping portions, the two clamping portions are provided around two sides of the clamping holder and are rotatably connected to the clamping holder, the driving assembly is configured to drive the two clamping portions to open and close relative to the clamping holder, respectively; the driving assembly is detachably connected to the clamping assembly; and wherein the clamping holder comprises a central claw rod, a first connecting portion and a second connecting portion that are sequentially connected, the second connecting portion is provided with a tail cavity with openings at two ends; and the two clamping portions both pass through the tail cavity and are located at two sides of the first connecting portion, and the two clamping portions are rotatably fitted with the first connecting portion.

2. The hemostasis and suturing conjoined dual-clamp capable of passing through the channel of the digestive endoscope according to claim 1 , wherein the clamping holder is provided with a first fixing hole, and each of the two clamping portions is provided with a second fixing hole; the clamping holder further comprises a fixing pin, wherein the fixing pin simultaneously passes through the first fixing hole and the second fixing holes of the two clamping portions to connect with the central claw rod and the two clamping portions.

3. The hemostasis and suturing conjoined dual-clamp capable of passing through the channel of the digestive endoscope according to claim 1 , wherein a peripheral surface of the central claw rod is provided with two avoidance grooves, and the two clamping portions are each protrudingly provided with a catching portion, and when the two clamping portions are closed, the catching portions on the two clamping portions are respectively caught into the two avoidance grooves.

4. The hemostasis and suturing conjoined dual-clamp capable of passing through the channel of the digestive endoscope according to claim 1 , wherein each of the two clamping portions comprises a clamping arm and a connecting arm, wherein each connecting arm is movably connected to the respective clamping arm, the driving assembly is connected to each connecting arm, and the driving assembly is configured to drive each connecting arm to move so as to drive the clamping arms to rotate relative to the clamping holder.

5. The hemostasis and suturing conjoined dual-clamp capable of passing through the channel of the digestive endoscope according to claim 4 , wherein the driving assembly is configured to drive each connecting arm to reciprocate linearly, so that the connecting arms drive the clamping arms to rotate relative to the clamping holder.

6. The hemostasis and suturing conjoined dual-clamp capable of passing through the channel of the digestive endoscope according to claim 5 , wherein each clamping arm comprises a clamping claw and a third connecting portion which are connected, wherein each third connecting portion is provided with a third sliding chute, an extending direction of each third sliding chute has an angle with a sliding direction of the respective connecting arm, and the connecting arms are slidably fitted with the third sliding chutes, and when the driving assembly drives the connecting arms to move linearly, the connecting arms slide in the respective third sliding chute and meanwhile drive the clamping arms to rotate.

7. The hemostasis and suturing conjoined dual-clamp capable of passing through the channel of the digestive endoscope according to claim 6 , wherein each connecting arm is provided with a front end connecting hole, and the clamping assembly further comprises a first pin shaft, wherein the first pin shaft simultaneously passes through the respective front end connecting hole and the respective third sliding chute, to connect with the respective third connecting portion and the respective connecting arm.

8. The hemostasis and suturing conjoined dual-clamp capable of passing through the channel of the digestive endoscope according to claim 4 , wherein the clamping assembly further comprises a locking piece, wherein the locking piece is connected to the clamping holder and forms two independent sliding channels together with the clamping holder, the connecting arms respectively pass through the two independent sliding channels, and the connecting arms and the clamping holder are relatively fixed on a circumferential direction of the clamping holder.

9. The hemostasis and suturing conjoined dual-clamp capable of passing through the channel of the digestive endoscope according to claim 8 , wherein the locking piece is snap-fitted with the clamping holder.

10. The hemostasis and suturing conjoined dual-clamp capable of passing through the channel of the digestive endoscope according to claim 8 , wherein the clamping assembly further comprises an anti-return structure, wherein the anti-return structure is provided between the connecting arms and the locking piece and is configured to restrict the connecting arms from driving the clamping arms to rotate from a closed state to an open state.

11. The hemostasis and suturing conjoined dual-clamp capable of passing through the channel of the digestive endoscope according to claim 10 , wherein the anti-return structure comprises an elastic piece and a locking platform, wherein the locking piece has two opposite board surfaces, and each of the board surfaces is provided with the locking platform; each connecting arm is connected to one side of the elastic piece, and when the clamping arms are closed, the other side of the elastic piece is located between the locking platform and the driving assembly, and the other side of the elastic piece is inclined in a direction away from the connecting arms, so that an orthographic projection of the elastic piece in a sliding direction of the connecting arms at least partially overlaps with the locking platform, to restrict the connecting arms from passing over the elastic piece in a direction close to the elastic piece.

12. The hemostasis and suturing conjoined dual-clamp capable of passing through the channel of the digestive endoscope according to claim 11 , wherein the driving assembly comprises two driving members, the two driving members are fitted with the two connecting arms one by one, and each driving member is provided with a sliding chute, the clamping assembly further comprises a second pin shaft, the driving assembly and the connecting arms are both connected to the second pin shaft, and the second pin shaft passes through the sliding chutes and is slidably fitted with the respective sliding chute; and the driving assembly is configured to press the elastic piece to unlock the elastic piece from the locking platform when sliding relative to the connecting arms, and drive the connecting arms to move linearly through the second pin shaft after unlocking the elastic piece from the locking platform, to enable the clamping arms to rotate.

13. The hemostasis and suturing conjoined dual-clamp capable of passing through the channel of the digestive endoscope according to claim 11 , wherein the elastic piece and at least one of the connecting arms are integrally formed.

14. The hemostasis and suturing conjoined dual-clamp capable of passing through the channel of the digestive endoscope according to claim 12 , wherein each driving member is provided

Assignees

• Micro Tech Nanjing Co Ltd
• Zhang Qiang

Inventors

• Zhang Qiang
• Bai Yang

Classifications

• A61B17/0469

  Suturing instruments for use in minimally invasive surgery, e.g. endoscopic surgery · CPC title

• A61B2017/12004

  for haemostasis, for prevention of bleeding · CPC title

• A61B2017/0046

  with a releasable handle; with handle and operating part separable · CPC title

• A61B2017/2938

  Independently actuatable jaw members, e.g. two actuating rods · CPC title

• A61B17/1285

  for minimally invasive surgery · CPC title