A tissue stapling clip and method of stapling tissue

Abstract

The application discloses a tissue suture clamp, which comprises a first clamp arm with a head end and a tail end, a second clamp arm with a head end and a tail end, the tail end of the second clamp arm being rotationally connected with the tail end of the first clamp arm, the first clamp arm and the second clamp arm being capable of moving away from each other to make the tissue suture clamp in an open state, or being capable of moving towards each other to make the tissue suture clamp in a closed state, a suture line, one end of the suture line being fixedly connected with a part of the first clamp arm away from the second clamp arm, and a first anti-slip part arranged on the outer surface of the part of the suture line not connected with the first clamp arm, the first anti-slip part being capable of preventing the tissue on the opposite side from slipping off the suture line to make the tissue on the opposite side move towards the tissue on one side in the process that the suture line moves towards the tissue on the opposite side. The application can realize the suture of a super-large wound and the suture after a perforation. The application further provides a suture method of tissue.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a tissue suture clip and a tissue suturing method. BACKGROUND

[0002] With the popularization of endoscopic surgery, especially the development of endoscopic tissue dissection and tissue resection, defects and perforations of the digestive tract tissue often occur. The tissue suture clip is often used for the suture of the digestive tract tissue. The two flaps of the tissue suture clip are required to be fixed on both sides of the mucosal defect of the digestive tract tissue, and the tissue suture clip is slowly closed to clamp the mucosa of the digestive tract tissue on both sides. Since the size of the opening of the two flaps of the existing tissue suture clip is limited, it cannot be effectively fixed on both sides of the mucosal defect of the digestive tract tissue, and can only clamp small wounds and incisions, and is suitable for the suture of ordinary small wounds. Moreover, it can only clamp the mucosa and cannot clamp the muscle layer for full-layer suture. It cannot achieve full-layer suture of large wounds and suture after perforation, which may cause serious complications or even death, and often requires open abdominal or thoracic surgery. Therefore, the closure of large tissue defects of the digestive tract is particularly important. SUMMARY

[0003] The purpose of the present application is to solve the problem that the existing tissue suture clip cannot achieve suture of large wounds and suture after perforation. The present application provides a tissue suture clip which can achieve suture of large wounds and suture after perforation.

[0004] To solve the above technical problems, the embodiment of the present application discloses a tissue suture clip, comprising: a first clamp arm having a head end and a tail end; a second clamp arm having a head end and a tail end, the tail end of the second clamp arm and the tail end of the first clamp arm being rotationally connected, the head end of the first clamp arm and the head end of the second clamp arm being used to clamp a side of tissue; the first clamp arm and the second clamp arm can move away from each other to make the tissue suture clip in an open state; or the first clamp arm and the second clamp arm can move towards each other to make the tissue suture clip in a closed state; a suture line, one end of the suture line being fixedly connected to a part of the first clamp arm away from the second clamp arm; a first anti-slippage part being provided on the outer surface of the part of the suture line not connected to the first clamp arm, the first anti-slippage part being capable of preventing the tissue on the opposite side from slipping off the suture line during the movement of the tissue on the opposite side relative to the tissue on the side in a direction away from the tissue on the side, so as to make the tissue on the opposite side move towards the tissue on the side.

[0005] The above technical solution can achieve suture of large wounds and suture after perforation.

[0006] According to another specific embodiment of the present application, the first anti-slippage part is a barb or a knot.

[0007] According to another specific embodiment of the present application, the barb or the knot is inclined towards the part of the first clamping arm away from the second clamping arm.

[0008] According to another specific embodiment of the present application, the included angle between the barb or the knot on the outer surface of the suture and the outer surface of the suture is 30° to 45°.

[0009] According to another specific embodiment of the present application, a plurality of anti-slip units are provided on the outer surface of the suture at intervals along the length direction of the suture, each anti-slip unit comprising a plurality of barbs or knots arranged at intervals in the circumferential direction, the circumferential direction surrounding the length direction of the suture.

[0010] According to another specific embodiment of the present application, the length of the part of the suture on which the first anti-slip part is provided is 4 cm to 11 cm.

[0011] According to another specific embodiment of the present application, one end of the suture is fixedly connected to the part of the head end of the first clamping arm away from the second clamping arm, or one end of the suture is fixedly connected to the part of the first connecting part of the first clamping arm away from the second clamping arm.

[0012] According to another specific embodiment of the present application, the first anti-slip part is a barb, the barb comprising a first part, a second part and a third part connected together; the first part of the barb is fixedly connected to the outer surface of the suture; the second part of the barb is arranged at an acute angle to the outer surface of the suture and is inclined towards the part of the first clamping arm away from the second clamping arm; and the third part of the barb is perpendicular to the outer surface of the suture.

[0013] According to another specific embodiment of the present application, further comprising: a second anti-slip part provided at the head end of the first clamping arm and / or the head end of the second clamping arm, for preventing tissue from slipping off the head end of the first clamping arm and / or the head end of the second clamping arm.

[0014] According to another specific embodiment of the present application, the second anti-slip part is a barb.

[0015] According to another specific embodiment of the present application, the barb on the first clamping arm and / or the second clamping arm is in the shape of a hook.

[0016] According to another specific embodiment of the present application, the head end of the first clamping arm comprises a first portion and a second portion, the first portion and the second portion of the head end of the first clamping arm are arranged at an angle to form a first V-shaped opening, the first portion of the head end of the first clamping arm is provided with barbs on a first surface of the second portion facing the first portion and / or a second surface of the second portion facing the first portion, the barbs on the first surface and / or the second surface are inclined towards a direction away from the opening of the first V-shaped opening;

[0017] The head end of the second clamping arm comprises a first receiving portion, in the closed state, the first portion and the second portion of the head end of the first clamping arm extend towards the second clamping arm, the first receiving portion extends towards the first clamping arm, the first receiving portion is located in the first V-shaped opening, and the barbs are located in the first receiving portion.

[0018] According to another specific embodiment of the present application, the angle between the barbs on the first surface and the first surface is 30° to 45°, and the angle between the barbs on the second surface and the second surface is 30° to 45°.

[0019] According to another specific embodiment of the present application, the first surface is provided with one or more rows of barb units, the second surface is provided with one or more rows of barb units, each row of barb units comprises a plurality of barbs arranged at intervals.

[0020] According to another specific embodiment of the present application, the head end and the tail end of the first clamping arm are connected by a first connecting portion, the head end and the tail end of the second clamping arm are connected by a second connecting portion, the first portion and the second portion are perpendicular to the first connecting portion, and the first receiving portion is perpendicular to the second connecting portion.

[0021] According to another specific embodiment of the present application, the head end and the tail end of the first clamping arm are connected by a first connecting portion, the first portion is connected to the first connecting portion by a first extending portion, the second portion is connected to the first connecting portion by a second extending portion, and the first extending portion and the second extending portion are arranged at intervals to form a second V-shaped opening.

[0022] According to another specific embodiment of the present application, the first clamping arm is made of an elastic material.

[0023] According to another specific embodiment of the present application, the first extending portion is provided with the barbs on a third surface facing the second clamping arm and / or the second extending portion is provided with the barbs on a fourth surface facing the second clamping arm, and the barbs on the third surface and / or the fourth surface are inclined towards the tail end of the first clamping arm.

[0024] According to another specific embodiment of the present application, the angle between the barb on the third surface and the third surface is 30° to 45°, and the angle between the barb on the fourth surface and the fourth surface is 30° to 45°.

[0025] According to another specific embodiment of the present application, one or more rows of barb units are arranged on the third surface, and one or more rows of barb units are arranged on the fourth surface, each row of barb units comprising a plurality of barbs arranged at intervals.

[0026] According to another specific embodiment of the present application, the head end of the first clamping arm comprises a first curved portion curved towards the second clamping arm, and the head end of the second clamping arm comprises a second curved portion curved towards the first clamping arm; the portion of the first curved portion facing away from the second clamping arm is provided with a barb, and the barb on the first curved portion is inclined towards the direction of the free end of the first curved portion; in the closed state, the first curved portion and the second curved portion abut against the portion of the first clamping arm facing them.

[0027] According to another specific embodiment of the present application, the tail end of the first clamping arm and the first curved portion are connected by a first connecting portion, and the barb is arranged at one end of the first curved portion away from the first connecting plate.

[0028] According to another specific embodiment of the present application, the tail end of the first clamping arm and the first curved portion are connected by a first connecting portion, the first connecting portion extends in a first direction, the free end of the first curved portion extends in a second direction, and the angle between the first direction and the second direction is 0° to 135°.

[0029] According to another specific embodiment of the present application, the angle between the first direction and the second direction is an acute angle.

[0030] According to another specific embodiment of the present application, the angle between the first direction and the second direction is 45°.

[0031] According to another specific embodiment of the present application, the portion of the second curved portion facing the first clamping arm is provided with a second accommodating portion, and in the closed state, the free end of the first curved portion is located in the second accommodating portion.

[0032] According to another specific embodiment of the present application, the first curved portion is in the shape of a hook.

[0033] According to another specific embodiment of the present application, the first curved portion is made of an elastic material.

[0034] According to another specific embodiment of the present application, in the open state, the angle between the first clamping arm and the second clamping arm is 90° or an obtuse angle.

[0035] The application also provides a tissue suturing method for suturing tissue on one side of a tissue defect and tissue on the other side of the tissue defect, characterized in that the suturing method comprises:

[0036] clamping the tissue on one side of the tissue defect by using the tissue suturing clip according to any one of the above embodiments;

[0037] clamping the other end of the suture wire opposite to the one end of the suture wire by using another tissue suturing clip, and clamping the tissue on the other side of the tissue defect, after the suture wire and the tissue on the other side of the tissue defect are clamped by the another tissue suturing clip, the suture wire is clamped in the another tissue suturing clip and the tissue on the other side of the tissue defect;

[0038] pulling the other end of the suture wire to move relative to the tissue on the other side of the tissue defect in a direction away from the tissue on one side of the tissue defect, so that the tissue suturing clip according to any one of the above embodiments and the another tissue suturing clip are close to each other, thereby making the edge of the tissue on the other side of the tissue defect close to the edge of the tissue on one side of the tissue defect, to close the tissue defect, and the closed tissue defect is linear. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 show the schematic diagram of tissue suturing in the prior art of the application;

[0040] Figure 2 show the schematic diagram of the structure of an endoscope used in tissue suturing in the prior art of the application;

[0041] Figure 3 show the perspective view of the tissue suturing clip according to the embodiment of the application Figure 1 ;

[0042] Figure 4 show the perspective view of the tissue suturing clip according to the embodiment of the application Figure 2 ;

[0043] Figure 5 show the perspective view of the tissue suturing clip according to the embodiment of the application Figure 3 ;

[0044] Figure 6 show the perspective view of the tissue suturing clip according to the embodiment of the application Figure 4 ;

[0045] Figure 7 show the perspective view of the first clamping arm of the tissue suturing clip according to the embodiment of the application Figure 1 ;

[0046] Figure 8 show the perspective view of the first clamping arm of the tissue suturing clip according to the embodiment of the application Figure 2 ;

[0047] Figure 9 perspective view showing a first jaw of a tissue stapling clip of an embodiment of the present application Figure 3 ;

[0048] Figure 10 perspective view showing a first jaw of a tissue stapling clip of an embodiment of the present application Figure 4 ;

[0049] Figure 11 perspective view showing a first jaw of a tissue stapling clip of an embodiment of the present application Figure 5 ;

[0050] Figure 12 side view showing a first jaw of a tissue stapling clip of an embodiment of the present application Figure 1 ;

[0051] Figure 13 perspective view showing a tissue stapling clip of an embodiment of the present application Figure 5 ;

[0052] Figure 14 perspective view showing a tissue stapling clip of an embodiment of the present application Figure 6 ;

[0053] Figure 15 perspective view showing a tissue stapling clip of an embodiment of the present application Figure 7 ;

[0054] Figure 16 perspective view showing a tissue stapling clip of an embodiment of the present application Figure 8 ;

[0055] Figure 17 perspective view showing a tissue stapling clip of an embodiment of the present application Figure 9 ;

[0056] Figure 18 perspective view showing a tissue stapling clip of an embodiment of the present application Figure 10 ;

[0057] Figure 19 side view showing a first jaw of a tissue stapling clip of an embodiment of the present application Figure 2 ;

[0058] Figure 20 perspective view showing a first jaw of a tissue stapling clip of an embodiment of the present application Figure 6 ;

[0059] Figure 21 perspective view showing a first jaw of a tissue stapling clip of an embodiment of the present application Figure 7 ;

[0060] Figure 22 side view showing a first jaw of a tissue stapling clip of an embodiment of the present application Figure 3 ;

[0061] Figure 23 Side view showing first jaw of tissue stapling clip of embodiment of the present application Figure 4 ;

[0062] Figure 24 Perspective view showing tissue stapling clip of embodiment of the present application Figure 10 ;

[0063] Figure 25 Perspective view showing tissue stapling clip of embodiment of the present application Figure 10 ;

[0064] Figure 26 Perspective view showing first jaw of tissue stapling clip of embodiment of the present application Figure 8 ;

[0065] Figure 27 Perspective view showing first jaw of tissue stapling clip of embodiment of the present application Figure 9 ;

[0066] Figure 28 Perspective view showing first jaw of tissue stapling clip of embodiment of the present application Figure 10 ;

[0067] Figure 29 Schematic view showing tissue stapling of tissue stapling clip of embodiment of the present application Figure 1 ;

[0068] Figure 30 Schematic view showing tissue stapling of tissue stapling clip of embodiment of the present application Figure 2 . DETAILED DESCRIPTION

[0069] Objects, advantages and novel features of the application will become more apparent to those skilled in the art from the following detailed description accompanied with the drawings. The description is presented in the order of preferred embodiments only and is not intended to limit the scope of the application. Indeed, the description is intended to cover all alternatives, modifications and equivalents that can be included within the scope of the claims based on the present application. To provide a thorough understanding of the application, numerous specific details are set forth in the following description. The application can be practiced without these specific details. In some instances, well-known methods and techniques have not been described in detail so as not to unnecessarily obscure the application. In addition, in the interest of brevity and clarity, some specific details are not described in detail. It is to be understood that the same or equivalent features have the same reference characters in the drawings and the description, and that features described as being in or on one component can also be in or on the same component or another component unless otherwise indicated. It is to be understood that the phraseology and terminology employed herein are for the purpose of description and should not be regarded as limiting.

[0070] It is to be understood that the phraseology and terminology employed herein are for the purpose of description and should not be regarded as limiting.

[0071] The terms "first", "second", etc. are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0072] In the description of the embodiments, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments can be understood according to the specific circumstances.

[0073] In order to make the purpose, technical scheme and advantages of the present application more clear, the embodiments of the present application will be further described in detail below with reference to the drawings.

[0074] As described previously, in the process of endoscopic tissue dissection, tissue resection and other operations, large wounds and perforations of digestive tract tissue often occur. Referring to Figure 1 , Figure 1 Figure (d) shows a large wound 500 of digestive tract tissue. Since the size of the opening of the two flaps of the existing tissue suture clip 400 is limited, it cannot be effectively fixed on both sides of the large wound 500 of the digestive tract tissue, and can only clip the blood vessels at the muscle defect or wound of the wound and the blood vessels at the incision edge, and is only suitable for preventing bleeding at the wound. It is not suitable for tissue suture of large wound 500.

[0075] Therefore, there is currently no suitable tissue suture clip that can accurately and quickly suture the large wound and perforated tissue under the endoscope. Currently, the purse-string suture method assisted by a nylon snare is commonly used. This method requires a special double-channel endoscope (Olympus 2TQ260M). Referring to Figure 1 Figures (a) and Figure 2 , first place a nylon snare ring 300 at the large wound 500 of the tissue defect through the double-channel endoscope 100, then insert a tissue suture clip 400 from the other channel of the endoscope, use multiple ordinary tissue suture clips 400 to fix the nylon snare ring 300 along the circumference of the large wound 500 on the mucosa of the large wound 500, and finally use the release device 301 dedicated to the nylon snare to tighten the tail of the nylon snare ring 300, and all the tissue suture clips 400 are gathered together, completing the tissue suture after the perforation or large wound 500.

[0076] However, the use of this technical method has the following disadvantages:

[0077] 1) The suture effect is not ideal. For example Figure 1As shown in (b), the head of the tissue suture clip 400 lies flat on the wound surface, and the center of the mucosal defect has multiple tissue suture clip 400 petal arms, which is not conducive to wound tightening, and the wound closure is not tight enough, and the oversized wound 500 or perforation suture effect is not ideal. In contrast, as shown in (c), the head of the multiple tissue suture clip 400 is upright relative to the wound surface, which is conducive to wound tightening. Figure 1 As shown in (b), the head of the tissue suture clip 400 lies flat on the wound surface, and the center of the mucosal defect has multiple tissue suture clip 400 petal arms, which is not conducive to wound tightening, and the wound closure is not tight enough, and the oversized wound 500 or perforation suture effect is not ideal. In contrast, as shown in (c), the head of the multiple tissue suture clip 400 is upright relative to the wound surface, which is conducive to wound tightening.

[0078] 2) Tissue suture consumes a long time, consumes many tissue suture clips 400, and has high operation technical difficulty. If the tissue suture clip 400 is flipped, it needs to be stopped to tighten the loop, and then other instruments are used to correct the tissue suture clip 400 arm before tightening, which consumes a long time. The operator has high technical requirements, such as proficiency in operating a double-channel endoscope, and proficiency in medical care cooperation, which can easily lead to prolonged surgery time and reduced surgery success rate.

[0079] 3) Expensive. Because a special double-channel endoscope (Olympus 2TQ260M) is used, the cost is high, and most units do not have it.

[0080] Therefore, oversized wound suture and perforation suture are urgent needs and difficulties in endoscopic surgery, which has always restricted the comprehensive promotion of endoscopic suture technology in many prefecture-level city hospitals.

[0081] Example 1

[0082] Reference Figures 3 to 8 The present application provides a tissue suture clip 1, comprising: a first clip arm 10 and a second clip arm 20. Wherein the first clip arm 10 has a head end 12 and a tail end 11, and the head end 12 and the tail end 11 of the first clip arm 10 are connected by a first connecting part 13; the second clip arm 20 has a head end 22 and a tail end 21, and the head end 22 and the tail end 21 of the second clip arm 20 are connected by a second connecting part 23, and the tail end 21 of the second clip arm 20 and the tail end 11 of the first clip arm 10 are rotationally connected. The first clip arm 10 and the second clip arm 20 can move away from each other to make the tissue suture clip 1 in an open state (as shown in (a) and (b)). Or, the first clip arm 10 and the second clip arm 20 can move towards each other to make the tissue suture clip 1 in a closed state (as shown in (c) and (d)). Figure 5 and Figure 6 As shown in (a) and (b), the first clip arm 10 and the second clip arm 20 are in an open state. As shown in (c) and (d), the first clip arm 10 and the second clip arm 20 are in a closed state. Figure 3 As shown in (a) and (b), the first clip arm 10 and the second clip arm 20 are in an open state. As shown in (c) and (d), the first clip arm 10 and the second clip arm 20 are in a closed state. Figure 6 and Figure 16 As shown in (a) and (b), the first clip arm 10 and the second clip arm 20 are in an open state. As shown in (c) and (d), the first clip arm 10 and the second clip arm 20 are in a closed state. Figure 5 and Figure 15 As shown in (a) and (b), the first clip arm 10 and the second clip arm 20 are in an open state. As shown in (c) and (d), the first clip arm 10 and the second clip arm 20 are in a closed state.

[0083] The head end 12 of the first clamping arm 10 and the head end 22 of the second clamping arm 20 are used to clamp the tissue (e.g. the mucosa of the tissue on one side of the digestive tract tissue defect). For example, the tissue suturing clip 1 is in an open state by operating the endoscope, so as to clamp the tissue by operating the endoscope (not shown in the figure) to make the tissue suturing clip 1 in a closed state. That is, the head end 12 of the first clamping arm 10 and the head end 22 of the second clamping arm 20 form a bite in the closed state, which is used to clamp the mucosa of the tissue defect.

[0084] As shown in Figure 4 and Figure 8 , the head end 12 of the first clamping arm 10 of the present application is provided with a second anti-slip part 30 for preventing the tissue from slipping off the head end 12 of the first clamping arm 10. In some possible embodiments, the head end 22 of the second clamping arm 20 can also be provided with a second anti-slip part 30 for preventing the tissue from slipping off the head end 22 of the second clamping arm 20. Alternatively, in some possible embodiments, the head end 12 of the first clamping arm 10 and the head end 22 of the second clamping arm 20 are both provided with a second anti-slip part 30 for preventing the tissue from slipping off the head end 12 of the first clamping arm 10 and the head end 22 of the second clamping arm 20.

[0085] The present application takes the head end 12 of the first clamping arm 10 provided with a second anti-slip part 30 as an example. When using the tissue suturing clip 1 of the present application to perform super large wound suturing and perforation suturing, it will not be affected by the size limitation of the opening angle of the tissue suturing clip 1. First, the head end 12 of the first clamping arm 10 is used to temporarily clamp the tissue mucosa on one side of the tissue defect. The design of the second anti-slip part 30 on the head end 12 of the first clamping arm 10 makes the tissue mucosa on one side of the tissue defect not slip off the head end 12 of the first clamping arm 10. Then, the tissue suturing clip 1 is opened again, and the tissue mucosa on this side is moved to the opposite side of the tissue defect to clamp the tissue mucosa on the opposite side of the tissue defect. During this period, the tissue will not slip off when the tissue suturing clip 1 is opened again, and it will be stably hooked or hung by the head end of the tissue suturing clip 1, greatly improving the technical reliability of the closed wound. Finally, the tissue suturing clip 1 is closed (i.e. the first clamping arm 10 and the second clamping arm 20 are moved towards each other) to perform suturing.

[0086] During the process of pulling the mucosa of the tissue on the side of the tissue defect, the mucosa of the tissue on the side of the tissue defect will not slip off the head end 12 of the first clamping arm 10, so that the mucosa of the tissue on the side of the tissue defect can be pulled to be close to and attached to the mucosa of the tissue on the side opposite to the tissue defect, realizing the alignment and suturing of the tissue of the super-large wound, effectively solving the problem of the repair and suturing of the super-large wound and the wound after perforation, and achieving ideal suturing effect. The tissue suturing clamp 1 of the present application is simple and reliable to operate, has low technical requirements for the operator, does not change the existing operation habits, and consumes less time for tissue suturing. Without the use of special endoscopes and other auxiliary instruments, the use of multiple tissue suturing clamps for super-large wounds is reduced, there is no closed gap, the technical difficulty of operation is greatly reduced, and the application is easy to popularize. The present application can improve the success rate of operation, reduce complications, and reduce medical costs.

[0087] The specific structure of the second anti-slip portion 30 is not limited, and the structure capable of preventing the tissue from slipping off the head end 12 of the first clamping arm 10 and / or the head end 22 of the second clamping arm 20 belongs to the protection scope of the present application. For example, referring to Figure 4 、 Figure 7 and Figure 8 , the second anti-slip portion 30 is a barb. In some possible embodiments, the second anti-slip portion 30 is a knot. For example, the barb is in the shape of a hook. The design of the barb prevents the tissue on the side of the tissue defect from slipping off the side of the tissue suturing clamp 1 (for example, the head end 12 of the first clamping arm 10), and the tissue is stably hooked or hung by the head end of the tissue suturing clamp 1, realizing the suturing of the super-large wound and the perforation.

[0088] In some possible embodiments, referring to Figures 3 to 8 , the head end 12 of the first clamping arm 10 includes a first portion 121 and a second portion 122, and the first portion 121 and the second portion 122 of the head end 12 of the first clamping arm 10 are arranged at an angle to form a first V-shaped opening 123. For example, the first portion 121 and the second portion 122 of the head end 12 of the first clamping arm 10 are arranged at an acute angle, for example, 30°. Wherein, barbs are arranged on a first surface 1211 of the first portion 121 of the head end 12 of the first clamping arm 10 facing the second portion 122 and a second surface 1221 of the second portion 122 facing the first portion 121, and the barbs on the first surface 1211 and the second surface 1221 are inclined towards the direction away from the opening of the first V-shaped opening 123 (as shown in the B direction in Figure 8 ). For example, the opening of the first V-shaped opening 123 is formed by the two ends of the first portion 121 and the second portion 122 of the head end 12 of the first clamping arm 10 which are not connected with the first connecting portion 13 of the first clamping arm 10.

[0089] In some possible embodiments, the first portion 121 of the head end 12 of the first clamping arm 10 is provided with barbs on a first surface 1211 thereof facing the second portion 122, the barbs on the first surface 1211 being inclined towards a direction away from the opening of the first V-shaped opening 123 (indicated by the direction B). Figure 8 Alternatively, the second portion 122 of the head end 12 of the first clamping arm 10 is provided with barbs on a second surface 1221 thereof facing the first portion 121, the barbs on the second surface 1221 being inclined towards a direction away from the opening of the first V-shaped opening 123 (indicated by the direction B). Figure 8

[0090] In addition, the head end 22 of the second clamping arm 20 comprises a first receiving portion 221. As shown in Figure 3 , in the closed state, the first portion 121 and the second portion 122 of the head end 12 of the first clamping arm 10 extend towards the second clamping arm 20, the first receiving portion 221 extends towards the first clamping arm 10, the first receiving portion 221 is located within the first V-shaped opening 123, and the barbs are located within the first receiving portion 221. In other words, the first receiving portion 221, the first portion 121 of the first clamping arm 10, the second portion 122 of the first clamping arm 10, and the barbs on the first clamping arm 10 can collectively clamp the tissue.

[0091] For example, the first portion 121 and the second portion 122 of the head end 12 of the first clamping arm 10 are respectively perpendicular to the first connecting portion 13, and the first receiving portion 221 is perpendicular to the second connecting portion 23.

[0092] In some possible embodiments, the angle between the barbs on the first surface 1211 of the first portion 121 of the head end 12 of the first clamping arm 10 and the first surface 1211 is 30° to 45°, inclusive. The angle between the barbs on the second surface 1221 of the second portion 122 of the head end 12 of the first clamping arm 10 and the second surface 1221 is 30° to 45°, inclusive.

[0093] It should be noted that the number of barbs on the first surface 1211 of the first portion 121 of the head end 12 of the first clamping arm 10 and the second surface 1221 of the second portion 122 of the head end 12 of the first clamping arm 10 is not limited, and structures capable of hooking or hanging the tissue to prevent the tissue from slipping off the first clamping arm 10 are within the scope of the present application.

[0094] In some possible embodiments, referring to Figure 8 , a row of barb units is provided on the first surface 1211, and a row of barb units is provided on the second surface 1221, each row of barb units comprising a plurality of barbs arranged at intervals. For example, Figure 8 ​As shown in FIG. 1, the first surface 1211 has a row of barb units, which includes four spaced-apart barbs. The second surface 1221 also has a row of barb units, which also includes four spaced-apart barbs.

[0095] In some possible embodiments, referring to Figures 8 to 10 , the first surface 1211 has a plurality of rows of barb units, and the second surface 1221 has a plurality of rows of barb units. Each row of barb units includes a plurality of spaced-apart barbs. For example, the first surface 1211 has four rows of barb units, and the second surface 1221 has four rows of barb units.

[0096] In some possible embodiments, referring to Figures 3 to 12 , the first portion 121 of the head end 12 of the first clamping arm 10 is connected to the first connecting portion 13 through a first extension 124, and the second portion 122 of the head end 12 of the first clamping arm 10 is connected to the first connecting portion 13 through a second extension 125. The first extension 124 and the second extension 125 are spaced apart and form a second V-shaped opening 126. In this way, more tissue can be clamped. For example, the first clamping arm 10 is made of an elastic material. For example, the second clamping arm 20 is made of an elastic material. For example, the elastic material can be plastic or high polymer material, but is not limited thereto.

[0097] In other words, the second V-shaped opening 126 of the first clamping arm 10 of the present application is elastic. As shown in Figure 12 (b), the second V-shaped opening 126 can be slightly opened when temporarily closed; as shown in Figure 12 (a), the second V-shaped opening 126 is slightly closed when the tissue clamping and suturing clip 1 is opened. In this way, the tissue can be clamped more easily, and the effect of the barbs on the first clamping arm 10 on fixing the tissue is increased.

[0098] In addition, in some possible embodiments, referring to Figure 7 and Figure 11 , the first extension 124 has barbs on a third surface 1241 facing the second clamping arm 20, and the second extension 125 has barbs on a fourth surface 1251 facing the second clamping arm 20. The barbs on the third surface 1241 and the fourth surface 1251 are inclined towards the tail end 11 of the first clamping arm 10. Figure 11In some possible embodiments, barbs are arranged on the third surface 1241 of the first extension 124 facing the second clamping arm 20 or on the fourth surface 1251 of the second extension 125 facing the second clamping arm 20. In this way, the tissue is more likely to be clamped, and the effect of the barbs on the first clamping arm 10 on fixing the tissue is increased. That is, the tissue is better hooked or hung by the barbs on the first surface 1211, the second surface 1221, the third surface 1241, and the fourth surface 1251 of the head end 12 of the first clamping arm 10, so as to prevent the tissue from slipping off the first clamping arm 10.

[0099] For example, the included angle between the barb on the third surface 1241 and the third surface 1241 is 30° to 45°, inclusive of 30° and 45°; and the included angle between the barb on the fourth surface 1251 and the fourth surface 1251 is 30° to 45°, inclusive of 30° and 45°. For example, the barbs on the third surface 1241 and the fourth surface 1251 are in the shape of a hook.

[0100] Similarly, the number of barbs on the third surface 1241 and the fourth surface 1251 is not limited, and structures capable of hooking or hanging the tissue to prevent the tissue from slipping off the first clamping arm 10 are within the protection scope of the present application. For example, referring to Figure 11 For example, one row of barb units is arranged on the third surface 1241, and one row of barb units is arranged on the fourth surface 1251, each row of barb units including a plurality of barbs arranged at intervals. For example, Figure 11 For example, one row of barb units on the third surface 1241 includes three barbs arranged at intervals, but the number of barbs is not limited to this, and one row of barb units on the fourth surface 1251 also includes three barbs arranged at intervals, and the number of barbs is also not limited to this. In some possible embodiments, a plurality of rows of barb units are arranged on the third surface 1241, and a plurality of rows of barb units are arranged on the fourth surface 1251, each row of barb units including a plurality of barbs arranged at intervals. For example, two rows of barb units are arranged on the third surface 1241, and two rows of barb units are arranged on the fourth surface 1251.

[0101] Example 2

[0102] For example, referring to Figures 13 to 23 The difference between the present embodiment and the above-mentioned embodiments is that the structure of the head end 12 of the first clamping arm 10 and the structure of the head end 22 of the second clamping arm 20 in the present embodiment are different from the structure of the head end 12 of the first clamping arm 10 and the structure of the head end 22 of the second clamping arm 20 in Embodiment One. Specifically, the head end 12 of the first clamping arm 10 includes a first bending portion 127 bent toward the second clamping arm 20, and the head end 22 of the second clamping arm 20 includes a second bending portion 222 bent toward the first clamping arm 10. For example, referring to Figures 13 to 16 andFigure 21 The first curved portion 127 is hook-shaped. That is, the first curved portion 127 is similar to a "fish hook", which makes the first clip arm 10 easy to penetrate the tissue. However, the shape of the first curved portion 127 is not limited thereto, as shown in FIG. 6, the first curved portion 127 is similar to a tapered shape. Figures 17 to 20

[0103] In the present embodiment, the portion of the first curved portion 127 facing away from the second clip arm 20 is provided with a barb (the second anti-slip portion 30 described above), and the barb on the first curved portion 127 is inclined in a direction away from the free end of the first curved portion 127 (indicated by the arrow in FIG. 5). Figure 13 For example, the free end of the first curved portion 127 is the end of the first curved portion 127 that is not connected to the first connecting portion 13, that is, the end of the first curved portion 127 that penetrates the tissue. As shown in FIG. 5, in the closed state, the first curved portion 127 abuts the portion of the second curved portion 222 facing the first clip arm 10, so that the head end 12 of the first clip arm 10 and the head end 22 of the second clip arm 20 form a bite portion in the closed state, which is used to clamp the mucosa of the tissue defect. Figure 13 For example, the tail end 11 of the first clip arm 10 and the first curved portion 127 are connected by the first connecting portion 13, and the barb is provided at the end of the first curved portion 127 away from the first connecting portion 13. After the first curved portion 127 on the first clip arm 10 penetrates the tissue, the tissue is hooked or hung by the barb on the first curved portion 127, and the tissue is not easy to slip off the first clip arm 10.

[0104] Continuing to refer to

[0105] and Figure 22 As described above, the tail end 11 of the first clip arm 10 and the first curved portion 127 are connected by the first connecting portion 13, the first connecting portion 13 extends in a first direction (indicated by the arrow Y in FIG. 4), and the free end of the first curved portion 127 extends in a second direction (indicated by the arrow X in FIG. 4), and the included angle (indicated by the arrow a in FIG. 4) between the first direction and the second direction is 0° to 135°, including 0° and 135°. Figure 23 Figure 22 For example, the included angle a between the first direction and the second direction is an acute angle, Figure 23 Figure 22 Figure 23 Figure 22 Figure 23

[0106] Figure 22 ​​​​​​​​The angle α between the first direction and the second direction is shown to be 45°. With this setting, when operating the tissue suture clip 1, the first curved part 127 on the first clamping arm 10 temporarily clamps one side of the tissue mucosa, and then the tissue suture clip 1 is pulled up so that the first curved part 127 can easily pass through the tissue, while the barbs make it difficult for the tissue to fall off; then the tissue mucosa on that side is pulled to the opposite side of the tissue defect so that the second curved part 222 can clamp the tissue mucosa on the opposite side of the tissue defect.

[0107] In some possible implementations, refer to Figure 23 , Figure 23 The diagram shows that the angle α between the first direction and the second direction is 135°. Alternatively, in some possible embodiments, the angle α between the first direction and the second direction is 0°, that is, the free end of the first bent portion 127 is parallel to the first connecting portion 13.

[0108] In some possible embodiments, the portion of the second curved portion 222 facing the first clamping arm 10 has a second receiving portion, and in the closed state, the free end of the first curved portion 127 is located within the second receiving portion (not shown). Exemplarily, the second receiving portion is a groove, such that in the closed state, the first curved portion 127 is received within the groove (see reference). Figure 13 ).

[0109] In some possible implementations, the first bend 127 is made of an elastic material. Exemplarily, the elastic material can be plastic or a polymer, but is not limited to these. This arrangement facilitates the clamping of tissue by the first bend 127. However, this application does not limit the material of the first bend 127; for example, the first bend 127 can be made of a metallic material.

[0110] Example 3

[0111] refer to Figures 24 to 28 This embodiment discloses a tissue suture clip 1, which has a suture 2. Specifically, the tissue suture clip 1 includes a first clamping arm 10 and a second clamping arm 20. The first clamping arm 10 has a head end 12 and a tail end 11, and the second clamping arm 20 has a head end 22 and a tail end 21. The tail end 21 of the second clamping arm 20 and the tail end 11 of the first clamping arm 10 are rotatably connected. The head end 12 of the first clamping arm 10 and the head end 22 of the second clamping arm 20 are used to clamp tissue on one side. The first clamping arm 10 and the second clamping arm 20 can move in opposite directions to put the tissue suture clip 1 in an open state; or, the first clamping arm 10 and the second clamping arm 20 can move towards each other to put the tissue suture clip 1 in a closed state.

[0112] One end of the suture 2 on the tissue suture clip 1 is fixedly connected to the portion of the first clamping arm 10 facing away from the second clamping arm 20. For example, one end of the suture 2 is fixedly connected to the head end 12 of the first clamping arm 10 facing away from the second clamping arm 20; or, one end of the suture 2 is fixedly connected to the first connecting portion 13 of the first clamping arm 10 facing away from the second clamping arm 20. This arrangement facilitates the pulling of the first clamping arm 10 when the suture 2 is pulled subsequently.

[0113] The suture 2 can be fixedly connected to the back of the tissue suture clip 1 by bonding, welding, or knotting. The outer surface of the portion of the suture 2 not connected to the first clamp arm 10 is provided with a first anti-slip portion 200. This first anti-slip portion 200 prevents the tissue on the opposite side from slipping off the suture 2 as the suture 2 moves relative to the tissue on the opposite side in a direction away from the tissue on one side, thus allowing the tissue on the opposite side to move towards the tissue on one side.

[0114] Essentially, after the first clamping arm 10 clamps the tissue on one side, and the second clamping arm 20 clamps the tissue on the opposite side, the suture 2 is pulled, causing the suture 2 to move in a direction away from the tissue on one side. Figures 26 to 28 (As shown in direction A) Tissue movement relative to the opposite side. During this process, suture 2 moves unidirectionally ( Figures 26 to 28 As shown in direction A), the tissue on the opposite side will not slip off the suture line 2, so that the tissue on the opposite side can move towards the tissue on one side, thereby bringing the edges of the tissue defect closer together and changing the large wound from a circle to a line shape.

[0115] This invention effectively solves the suturing challenges of extremely large wounds and perforations, achieving ideal suturing results. The tissue suture clip 1 described in this application is simple and reliable to use, requires minimal surgeon skill, does not alter existing surgical procedures, and shortens tissue suturing time. It eliminates the need for special endoscopes and other auxiliary instruments, reducing the need for multiple tissue suture clips for extremely large wounds. The absence of closed sutures significantly reduces the technical difficulty of the procedure, making it easy to promote and apply. This can improve surgical success rates, reduce complications, and lower medical costs.

[0116] For example, the structure of the first clamping arm 10 of the tissue suture clip 1 in this embodiment is the same as that in Embodiment 1 (see reference). Figure 24 and Figure 27 (or Example 2 (reference)) Figure 25 and Figure 28 The structure of the first clamping arm 10 of the tissue suture clip 1 described in the previous embodiment is the same. The structure of the second clamping arm 20 of the tissue suture clip 1 in this embodiment is the same as that in Embodiment 1 (see reference). Figure 24 and Figure 27 (or Example 2 (reference)) Figure 25 and Figure 28The structure of the second clamping arm 20 of the tissue suturing clip 1 described in the first embodiment is the same as that of the second clamping arm 20 of the tissue suturing clip 1 described in the second embodiment. After being arranged in this way, the tissue is clamped by the tissue suturing clip 1 described in the first embodiment or the second embodiment, and the tissue is not easy to slide off the tissue suturing clip 1, and the tissue is not easy to slide off the suture 2, so that the super large wound suturing and the perforation suturing are facilitated under the joint action of the tissue suturing clip 1 and the suture 2. In some possible implementation manners, the tissue suturing clip 1 in the present embodiment can be a general tissue suturing clip 1 (refer to Figure 26 ).

[0117] In some possible implementation manners, the first anti-slipping part 200 described above is a barb or a knot. Figures 24 to 28 Correspondingly, a short barbed suture or a knotted suture 2 is added to the tissue suturing clip 1. The suture 2 has a plurality of barbs or knots, and the friction of the suture 2 is increased. The suture 2 can only move in one direction (as indicated by the A direction in Figures 26 to 28 ), and the resistance to movement in the opposite direction is increased.

[0118] Exemplarily, the barb or the knot is inclined toward the portion of the first clamping arm 10 away from the second clamping arm 20.

[0119] Exemplarily, the included angle between the barb or the knot on the outer surface of the suture 2 and the outer surface of the suture 2 is 30° to 45°, inclusive of 30° and 45°.

[0120] With reference to Figures 24 to 28 , the outer surface of the suture 2 of the present application is provided with a plurality of anti-slipping units spaced along the length direction of the suture 2, and each anti-slipping unit includes a plurality of barbs or knots spaced along the circumferential direction and circumferentially surrounding the length direction of the suture 2.

[0121] Exemplarily, the length of the portion of the suture 2 provided with the first anti-slipping part 200 is 4 cm to 11 cm. For example, the length is 5 cm to 10 cm. For example, the upper segment (the region away from the first clamping arm 10) of the suture 2 is attached with small barbs.

[0122] Exemplarily, the first anti-slipping part 200 of the present application is a barb. With reference to Figures 24 to 28 , the barb includes a first portion, a second portion and a third portion connected with each other; the first portion of the barb is fixedly connected with the outer surface of the suture 2; the second portion of the barb is arranged at an acute angle with the outer surface of the suture 2 and is inclined toward the portion of the first clamping arm 10 away from the second clamping arm 20; and the third portion of the barb is perpendicular to the outer surface of the suture 2.

[0123] With reference to Figure 29 and Figure 30, using the tissue suture clip 1 with the suture 2 of the present application to suture the tissue 501 on one side of the tissue defect and the tissue 502 on the opposite side of the tissue defect, the tissue suture method provided by the present application specifically comprises:

[0124] using the tissue suture clip 1 described in any of the above embodiments to clamp the tissue 501 on one side of the tissue defect, i.e. clamping the tissue 501 on one side of the tissue defect by the first clamping arm 10 and the second clamping arm 20 of the tissue suture clip 1;

[0125] using another common tissue suture clip 600 to clamp the other end of the suture 2 opposite to one end of the suture 2 and clamp the tissue 502 on the opposite side of the tissue defect, after the suture 2 and the tissue 502 on the opposite side of the tissue defect are clamped by the other tissue suture clip 600, the suture 2 is clamped in the other tissue suture clip 600 and the tissue 502 on the opposite side of the tissue defect;

[0126] using the unilateral movement feature of the suture 2 of the present application, using a biopsy forceps or another common tissue suture clip and other instruments to pull the other end of the suture 2 in one direction (as shown in direction A in Figure 29 and Figure 30 , so as to move the tissue 502 on the opposite side of the tissue defect away from the tissue 501 on one side of the tissue defect, so as to make the tissue suture clip 1 (the tissue suture clip 1 with the suture 2) described in any of the above embodiments and the other tissue suture clip 600 close to each other, so as to make the edge of the tissue 502 on the opposite side of the tissue defect close to the edge of the tissue 501 on one side of the tissue defect, so as to close the tissue defect, and the closed tissue defect is linear.

[0127] As shown in Figure 30 , before complete suturing, the tissue defect is circular, as shown in Figure 29 , during the process of unilateral pulling of the suture 2 and tightening, the tissue defect gradually becomes linear, and when the suture 2 is completely tightened, the edge of the tissue 502 on the opposite side of the tissue defect and the edge of the tissue 501 on one side of the tissue defect are in close contact and closed. If the wound is large, the above process can be repeated to achieve intermittent or continuous suturing, so as to completely close the super large tissue defect. The suture of the super large wound and the perforation is effectively solved.

[0128] When suturing the super large tissue defect, the size limitation of the tissue suture clip 1 will not cause the failure of suturing. The tissue 501 on one side of the defect can be fixed first, and then the suture 2 is fixed to the tissue 502 on the opposite side of the defect, and the suture 2 is pulled to achieve the effect of quickly closing the two sides of the tissue, reducing the defect and suturing. This method can achieve intermittent suturing, continuous suturing, or after using the present application to reduce the wound surface of the defect, using a common tissue suture clip to close the defect, greatly improving the reliability, convenience, reducing the difficulty and complications of suture technology, and reducing the medical cost of patients.

[0129] The tissue suture clip 1 with suture 2 provided by the present application improves the success rate of suture operation on super-large wounds, improves the reliability of tissue defect closure, greatly reduces the operation difficulty of the operator, and reduces the operation time. The self structure of the first anti-slip part 200 (such as barb or knot) determines its single movement feature, so it has good performance for pulling up the super-large wound and preventing tissue retraction and cracking, without knotting.

[0130] Although the present application has been illustrated and described with reference to certain preferred embodiments thereof, it should be understood that the foregoing is intended to cover all modifications and variations of this application that are within the scope of the present application, as defined by the appended claims. It is intended to include all changes and modifications that fall within the scope of the present application.

Claims

1. A tissue stapling clip, comprising: The device comprises: a first clamping arm having a head end and a tail end; a second clamping arm having a head end and a tail end, the tail end of the second clamping arm and the tail end of the first clamping arm being pivotally connected, the head end of the first clamping arm and the head end of the second clamping arm being used to clamp a side of tissue, the side of tissue being capable of being pulled to be close to and conform to the opposite side of tissue; the first clamping arm and the second clamping arm are capable of moving away from each other to make the tissue suture clamp in an open state; alternatively, the first clamping arm and the second clamping arm are capable of moving towards each other to make the tissue suture clamp in a closed state; a suture, one end of the suture being fixedly connected to the part of the first clamping arm away from the second clamping arm; a first anti-slippage part being provided on the outer surface of the part of the suture not connected to the first clamping arm, the first anti-slippage part being capable of preventing the opposite side of tissue from slipping off the suture during the movement of the suture in the direction away from the side of tissue towards the opposite side of tissue, so as to make the opposite side of tissue move towards the side of tissue; a second anti-slippage part being provided on the head end of the first clamping arm and / or the head end of the second clamping arm, for preventing tissue from slipping off the head end of the first clamping arm and / or the head end of the second clamping arm; the second anti-slippage part is a plurality of barbs; the head end of the first clamping arm comprises a first part and a second part, the first part and the second part of the head end of the first clamping arm being arranged at an angle to form a first V-shaped opening, a first surface of the second part facing the first part and / or a second surface of the first part facing the second part being provided with barbs; the head end of the second clamping arm comprises a first accommodating part, in the closed state, the first accommodating part extending towards the first clamping arm, the first accommodating part being located in the first V-shaped opening, and the barbs being located in the first accommodating part; the first accommodating part, the first part of the first clamping arm, the second part of the first clamping arm, and the barbs on the first clamping arm can collectively grip tissue.

2. The tissue stapling clip of claim 1 wherein, The first anti-slippage part is a barb or a knot.

3. The tissue stapling clip of claim 2 wherein, The barb or the knot is inclined towards the part of the first clamping arm away from the second clamping arm.

4. The tissue suture clip as described in claim 3, characterized in that, The included angle between the barb or the knot on the outer surface of the suture and the outer surface of the suture is 30° to 45°.

5. The tissue stapling cartridge of claim 2 wherein the cartridge comprises a plurality of the staples. A plurality of anti-slippage units are provided on the outer surface of the suture along the length direction of the suture, each anti-slippage unit comprising a plurality of barbs or knots arranged along a circumferential direction, the circumferential direction surrounding the length direction of the suture.

6. The tissue stapling clip of claim 1 wherein, The length of the part of the suture provided with the first anti-slippage part is 4 cm to 11 cm.

7. The tissue stapling clip of claim 1 wherein, One end of the suture is fixedly connected to the head end of the first clamping arm away from the second clamping arm; or, one end of the suture is fixedly connected to the first connecting part of the first clamping arm away from the second clamping arm.

8. The tissue suture clip as described in claim 2, characterized in that, The first anti-slip part is a barb, the barb comprises a first part, a second part and a third part connected with each other; the first part of the barb is fixedly connected with the outer surface of the suture; the second part of the barb is arranged at an acute angle with the outer surface of the suture and is inclined towards the part of the first clamping arm away from the second clamping arm; the third part of the barb is perpendicular to the outer surface of the suture.

9. The tissue suture clip as described in claim 1, characterized in that, The barb on the first clamping arm and / or the second clamping arm is in the shape of a hook.

10. The tissue stapling clip of claim 1 wherein, The head end of the first clamping arm comprises a first part and a second part, the first part and the second part of the head end of the first clamping arm are arranged at an angle to form a first V-shaped opening, the first part of the head end of the first clamping arm is provided with a barb on the first surface of the second part facing the first part and / or the second surface of the second part facing the first part, the barb on the first surface and / or the second surface is inclined towards the direction away from the opening of the first V-shaped opening; The head end of the second clamping arm comprises a first accommodating part, in the closed state, the first part and the second part of the head end of the first clamping arm extend towards the second clamping arm, the first accommodating part extends towards the first clamping arm, the first accommodating part is located in the first V-shaped opening, and the barb is located in the first accommodating part.

11. The tissue stapling clip of claim 10, wherein, The included angle between the barb on the first surface and the first surface is 30° to 45°, and the included angle between the barb on the second surface and the second surface is 30° to 45°.

12. The tissue stapling clip of claim 10 wherein, The first surface is provided with one or more rows of barb units, and the second surface is provided with one or more rows of barb units, each row of barb units comprises a plurality of barbs arranged at intervals.

13. The tissue stapling cartridge of claim 10, wherein: The head end and the tail end of the first clamping arm are connected by a first connecting part, and the head end and the tail end of the second clamping arm are connected by a second connecting part; the first part and the second part are perpendicular to the first connecting part, and the first accommodating part is perpendicular to the second connecting part.

14. The tissue suture clip as described in claim 10, characterized in that, The head end and the tail end of the first clamping arm are connected by a first connecting part, the first part is connected with the first connecting part by a first extending part, the second part is connected with the first connecting part by a second extending part, and the first extending part and the second extending part are arranged at intervals and form a second V-shaped opening.

15. The tissue stapling clip of claim 14 wherein, The first clamping arm is made of elastic material.

16. The tissue stapling clip of claim 14 wherein, The first extending part is provided with the barb on the third surface facing the second clamping arm and / or the second extending part is provided with the barb on the fourth surface facing the second clamping arm, and the barb on the third surface and / or the fourth surface is inclined towards the tail end of the first clamping arm.

17. The tissue stapling clip of claim 16 wherein, The included angle between the barb on the third surface and the third surface is 30° to 45°, and the included angle between the barb on the fourth surface and the fourth surface is 30° to 45°.

18. The tissue stapling cartridge of claim 16 wherein the cartridge further comprises a cartridge body, a plurality of staple cavities defined in the cartridge body, and a plurality of staples removably stored in the staple cavities. The third surface is provided with one or more rows of barb units, and the fourth surface is provided with one or more rows of barb units, each row of barb units comprises a plurality of barbs arranged at intervals.

19. The tissue suture clip as described in claim 1, characterized in that, The head end of the first clamping arm comprises a first curved portion curved towards the second clamping arm, and the head end of the second clamping arm comprises a second curved portion curved towards the first clamping arm; a portion of the first curved portion facing away from the second clamping arm is provided with a barb, and the barb on the first curved portion is inclined towards the direction of the free end of the first curved portion; in the closed state, the first curved portion and the second curved portion abut against the portion facing the first clamping arm.

20. The tissue stapling clip of claim 19 wherein, The tail end of the first clamping arm and the first curved portion are connected by a first connecting portion, and the barb is arranged at one end of the first curved portion away from the first connecting portion.

21. The tissue stapling cartridge of claim 19 wherein the cartridge further comprises a cartridge body, a plurality of staple cavities defined in the cartridge body, and a plurality of staples removably stored in the staple cavities. The tail end of the first clamping arm and the first curved portion are connected by a first connecting portion, the first connecting portion extends in a first direction, the free end of the first curved portion extends in a second direction, and the included angle between the first direction and the second direction is 0° to 135°.

22. The tissue suture clip as described in claim 21, characterized in that, The included angle between the first direction and the second direction is an acute angle.

23. The tissue stapling clip of claim 22 wherein, The included angle between the first direction and the second direction is 45°.

24. The tissue stapling cartridge of claim 19 wherein the cartridge further comprises a cartridge body, a plurality of staple cavities defined in the cartridge body, and a plurality of staples removably stored in the staple cavities. The portion of the second curved portion facing the first clamping arm is provided with a second accommodating portion, and in the closed state, the free end of the first curved portion is located in the second accommodating portion.

25. The tissue stapling cartridge of claim 19 wherein the cartridge further comprises a cartridge body, a plurality of staple cavities defined in the cartridge body, and a plurality of staples removably stored in the staple cavities. The first curved portion is in the shape of a hook.

26. The tissue stapling cartridge of claim 19 wherein: The first curved portion is made of an elastic material.

27. The tissue stapling clip of claim 1 wherein, In the open state, the included angle between the first clamping arm and the second clamping arm is 90° or obtuse.

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