Closure clip

Abstract

A first power-assisted lug is arranged at the rear part of a first clamping piece of the closing clamp. And a first power-assisted surface is arranged on the first power-assisted convex block. And a second assisting surface is arranged at the rear part of the second clamping piece. When the first clamping piece and the second clamping piece of the closing clamp overcome the acting force of bending deformation of the hinge piece to be closed with each other, the first assisting face on the first assisting protruding block abuts against the second assisting face in a pressing mode. The rear portion of the second clamping piece of the closing clamp can be provided with a second assisting protruding block. And a second power-assisted surface can be arranged on the second power-assisted convex block. When the first clamping piece and the second clamping piece of the closing clamp are closed, the first power-assisted protruding block is located on the rear side of the second power-assisted protruding block. And at the moment, the first power-assisted surface on the first power-assisted convex block is propped against the second power-assisted surface on the second power-assisted convex block.

Description

[0001] This application is a divisional application of the Chinese patent application with the application date of August 29, 2023, application number 2023223264314, and invention name "Closing clip with snap structure". Technical Field

[0002] The closure clip involved in the present invention is used for clamping tissue, and particularly relates to a non-biodegradable closure clip, and also particularly relates to a biodegradable closure clip, and more particularly relates to a closure clip used in a clamp applying a closure clip for single application, and more particularly relates to a closure clip used in a clamp applying a closure clip for continuous application. Background Art

[0003] In surgical operations, various manual, electric and robotic closure clamps are commonly used in operations to clamp blood vessels and organ tissues in the abdominal and thoracic cavities; they are used in operations to clamp blood vessels and organ tissues in the excretory and reproductive systems; they are particularly suitable for operations to clamp blood vessels and organ tissues that are difficult to expose and operate, and can be used in both open and laparoscopic surgeries, which can reduce surgical trauma, lower surgical risks, shorten operation time and improve surgical quality.

[0004] The clamping forceps for applying closing clips are divided into two types: the clamping forceps for applying closing clips once and the clamping forceps for applying closing clips continuously. Since the jaws of the clamping forceps for applying closing clips once can only hold one closing clip at a time, when applying the clamps, firstly, a closing clip is loaded into the jaws of the clamping forceps, and then the handle in the operating component of the clamping forceps is pulled to clamp one closing clip. If the second closing clip is clamped, the above action needs to be repeated once. A laparoscopic surgery requires an average of 15 closing clips to be clamped, and the above action needs to be repeated 15 times, which is obviously troublesome and time-consuming on the operating table. Once an emergency state of multiple bleeding or leakage is encountered, it is difficult to respond in time. Multiple closing clips are loaded into the interior of the actuator component of the clamping forceps for applying closing clips continuously, and these closing clips can be clamped continuously, avoiding the above unsatisfactory aspects of the clamping forceps for applying closing clips once.

[0005] The closure clips described in US Pat. Nos. 20210030420A1, 20210228212A1 and 20220211384A1 are as follows: Figures 1 to 3As shown, the known closing clip 1 includes a first clip 2, a second clip 3 and a hinge 4. The hinge 4 of the closing clip 1 connects the first clip 2 located at the bottom and the second clip 3 located at the top, and connects the first clip 2, the second clip 3 and the hinge 4 into one. The hinge 4 includes an outer hinge 5 and an inner hinge 6. A hinge groove 7 is provided between the outer hinge 5 and the inner hinge 6. A hook 8 is provided at the front upper part of the first clip 2, a lower pressing block 12 is provided at the front lower part, and a first clamping surface 9 is provided at the top. A clamping block 10 is provided at the front of the second clip 3, an upper pressing block 13 is provided at the front upper part, and a second clamping surface 11 is provided at the bottom. The rebound effect of the outer hinge 5 and the inner hinge 6 causes the front parts of the first clip 2 and the second clip 3 to open to each other, forming a V-shaped closing clip 1. When the first clip 2 and the second clip 3 of the closing clip 1 are closed to each other, the first clip 2 and the second clip 3 overcome the bending deformation force of the outer hinge 5 and the inner hinge 6. When the first clamp 2 and the second clamp 3 of the closing clamp 1 clamp tissue (not shown), an upward force is applied to the lower pressing block 12 of the first clamp 2 of the closing clamp 1, and a downward force is applied to the upper pressing block 13 of the second clamp 3, so that the first clamp 2 and the second clamp 3 are closed to each other, so that the clamping block 10 of the second clamp 3 is clamped into the hook 8 of the first clamp 2, and the tissue is clamped between the first clamping surface 9 of the first clamp 2 and the second clamping surface 11 of the second clamp 3; at this time, the upper pressing block 13 of the second clamp 3 is clamped on both sides of the hook 8 of the first clamp 2, and the tissue in the hook 8 of the first clamp 2 is pushed into the first clamping surface 9 of the first clamp 2 and the second clamping surface 11 of the second clamp 3. The first unsatisfactory thing about this type of closing clamp is that after the closing clamp clamps the tissue, the lower pressing block of the first clamp and the upper pressing block of the second clamp protrude from the left and right sides of the closing clamp, which will compress and scratch the tissue around the closing clamp, especially the tip of the upper pressing block of the second clamp will scratch the tissue around the closing clamp. The second unsatisfactory aspect of this style of closing clamp is that after the tissue is placed in the V-shaped closing clamp, as the closing clamp is opened and closed, the tissue is gradually pushed into the hook; when the closing clamp clamps the tissue, if the tip of the upper pressure block of the second clamp does not push the tissue entering the hook out of the hook, the clamping block of the second clamp cannot be normally inserted into the hook of the first clamp, and the tissue cannot be accurately clamped between the first clamping surface of the first clamp and the second clamping surface of the second clamp, resulting in a clamp falling accident, or the need to take auxiliary operations to push out the tissue entering the hook, affecting the surgical efficiency and experience of the clinician. The third unsatisfactory aspect of this style of closing clamp is that, due to the limitation of the size of the clamped tissue at the rear of the closing clamp, the curvature radius of the inner hinge piece of the hinge piece connecting the rear of the first clamp and the rear of the second clamp is very small. When the clamp is in the process of clamping and releasing the tissue to be clamped, the closing clamp is continuously opened and closed for more than 15 times, which will cause the hinge piece at the rear of the closing clamp to undergo plastic deformation and cause the clamp to fall off, affecting the normal use of the clamp and ultimately affecting the surgical efficiency and experience of the clinician.The fourth unsatisfactory aspect of this style of closing clip is that when the small or large-sized closing clip parts are partially closed and installed in the extension assembly with an outer diameter of 5.5mm or 10mm of the clamping forceps of the continuous clamping closing clip for more than 1 hour, the hinge piece at the rear of the closing clip will gradually undergo plastic deformation due to material creep caused by stress and elongation. The longer the time, the greater the plastic deformation. The greater the plastic deformation, the smaller the amplitude of the front parts of the first clamp and the second clamp opening to each other by the hinge piece relying on its own rebound effect. The time for a minor operation using a closing clip is 1-2 hours, the time for a medium operation is 2-3 hours, and the time for a major operation is 3-4 hours. Therefore, after the closing clip part is closed for 2 hours, the plastic deformation of the hinge piece often causes the clip to fall off, affecting the normal use of the clamping forceps of the continuous clamping closing clip, and ultimately affecting the surgical efficiency and experience of clinicians. Summary of the invention

[0006] The closing clip of the present invention comprises a first clip located at the bottom, a second clip located at the top and a hinged piece located at the rear. The hinged piece connects the first clip and the second clip, and connects the first clip, the second clip and the hinged piece into one. The front parts of the first clip and the second clip are opened to each other to form a V-shaped closing clip. The front part of the first clip has a hook, and the top has a first clamping surface. The front part of the second clip has a block, and the bottom has a second clamping surface. The material of the closing clip can be a bio-non-degradable material or a bio-non-absorbable material, and the material of the closing clip can also be a bio-degradable material or a bio-absorbable material. When the first clip and the second clip of the closing clip are closed to each other, the first clip and the second clip overcome the bending deformation force of the hinged piece. When the first clip and the second clip of the closing clip clamp tissue, the first clip and the second clip are closed to each other, so that the block of the second clip is clamped into the hook groove of the hook of the first clip, forming a closing clip with a buckle structure, and the tissue is clamped between the first clamping surface of the first clip and the second clamping surface of the second clip.

[0007] The first clip of the closing clip has a first assisting protrusion at the rear. The first assisting protrusion has a first assisting surface. The second clip has a second assisting surface at the rear. When the first clip and the second clip of the closing clip overcome the bending deformation of the hinge piece and close to each other, the first assisting surface on the first assisting protrusion presses against the second assisting surface. The second clip of the closing clip may have a second assisting protrusion at the rear. The second assisting protrusion may have a second assisting surface. When the first clip and the second clip of the closing clip close to each other, the first assisting protrusion is located at the rear side of the second assisting protrusion; at this time, the first assisting surface on the first assisting protrusion presses against the second assisting surface on the second assisting protrusion.

[0008] Since the force exerted on the first clamping surface of the first clamping piece and the force exerted on the second clamping piece by the tissue clamped between the first clamping surface and the second clamping surface forms a torque at the hinge of the closing clamp, the first boosting surface is pressed against the second boosting surface or the hinge is tightened on the first rear protrusion at the rear of the first clamp and the second rear protrusion at the rear of the second clamp, which can prevent the above torque from twisting the hinge of the closing clamp. Even if the curvature radius of the hinge is large, the rear of the first clamp and the rear of the second clamp can be kept closed to each other, so as to achieve the technical effect of keeping the tissue clamped between the first clamping surface of the first clamp and the second clamping surface of the second clamp. The hinge with a large curvature radius can significantly reduce plastic deformation and will not yield deformation, which is suitable for both the clamping forceps for continuous clamping and the clamping forceps for single clamping. When the open part of the closing clamp is closed and installed in the actuator of the clamping forceps for continuous clamping, the hinge at the rear of the closing clamp undergoes elastic deformation, which is particularly suitable for the clamping forceps for continuous clamping. Therefore, the closing clip of the present invention avoids the problem of the hinge piece of the existing closing clip being plastically deformed and causing the clip to fall off, and will not affect the normal use of the clamp applicator of the closing clip, thereby achieving the technical effect of improving the surgical efficiency and experience of clinical doctors.

[0009] The first clip of the closing clip of the present invention may have a guide block above the hook, and a stopper may be provided in the hook groove of the hook. The second clip may have a guide groove below the block. When the first clip and the second clip of the closing clip clamp the tissue, the first clip and the second clip are closed to each other, and the guide groove of the block of the second clip slides along the guide block of the hook of the first clip, so that the block of the second clip is clamped into the hook groove of the hook of the first clip; at this time, the guide groove of the block is clamped on the stopper in the hook groove of the hook, so that the block of the second clip is constrained in the hook groove of the hook of the first clip.

[0010] The front part of the stopper in the hook groove of the hook of the first clamp of the closing clip can be fixed to the front wall of the hook groove of the hook, an upper gap can be provided between the upper part of the stopper and the upper wall of the hook groove of the hook, and a lower gap can be provided between the lower part of the stopper and the lower wall of the hook groove of the hook. The front part of the stopper in the hook groove of the hook of the first clamp of the closing clip can also be fixed to the front wall of the hook groove of the hook, the lower part of the stopper can also be fixed to the lower wall of the hook groove of the hook, and an upper gap can also be provided between the upper part of the stopper and the upper wall of the hook groove of the hook. When the block of the second clamp is inserted into the hook groove of the hook of the first clamp, the upper gap between the upper part of the stopper and the upper wall of the hook groove of the hook provides a space for the hook to bend and deform, and the lower gap between the lower part of the stopper and the lower wall of the hook groove of the hook provides a space for the tissue near the hook groove to be squeezed in, so as to achieve the technical effect of reducing the force when clamping the tissue and increasing the volume of the clamped tissue.

[0011] A downward pressing groove may be provided below the stopper in the hook groove of the hook of the first clamp of the closing clamp. When the first clamp and the second clamp of the closing clamp clamp tissue, an upward force is applied to the downward pressing groove of the first clamp of the closing clamp, and a downward force is applied to the second clamp, so that the first clamp and the second clamp are closed to each other, so that the block of the second clamp is inserted into the hook of the first clamp, and the tissue is clamped between the first clamping surface of the first clamp and the second clamping surface of the second clamp.

[0012] A pressing block may be provided below the stopper in the hook groove of the hook of the first clamp of the closing clamp. When the first clamp and the second clamp of the closing clamp clamp tissue, an upward force is applied to the pressing block of the first clamp of the closing clamp, and a downward force is applied to the second clamp, so that the first clamp and the second clamp are closed to each other, so that the block of the second clamp is inserted into the hook of the first clamp, and the tissue is clamped between the first clamping surface of the first clamp and the second clamping surface of the second clamp.

[0013] After the block of the second clamp is inserted into the hook groove of the hook of the first clamp, the guide groove of the block is stuck on the stopper in the hook groove of the hook to prevent the first clamp and the second clamp from moving left and right. On the one hand, there are no upper pressing blocks and lower pressing blocks of the closing clamp protruding on the left and right sides of the closing clamp, which reduces the overall dimensions of the closing clamp, so that the small or large-sized closing clamp parts can be respectively installed in the extension components with an outer diameter of 5.5mm or 10mm of the actuator components of the clamping forceps of the continuous clamping closing clamp after closing, occupying a smaller volume and the closing clamp of the clamped tissue. The technical effect of occupying a smaller volume in the human body is achieved, so that the tissues around the closing clamp will not be compressed, abraded or scratched. On the other hand, after the tissue is placed in the V-shaped closing clamp, as the closing clamp is opened and closed, the block in the hook groove of the hook prevents the tissue from being pushed into the hook, making it easier for the block of the second clamp to be inserted into the hook groove of the hook of the first clamp, and accurately clamping the tissue between the first clamping surface of the first clamp and the second clamping surface of the second clamp, avoiding accidents of clamping off, and achieving the technical effect of improving the surgical efficiency and experience of clinicians.

[0014] The lower rear side of the hinge of the closing clip of the present invention may have an opening rod extending downward and backward. When the opening rod is subjected to a forward thrust, a forward thrust and a torque are generated at the lower rear side of the hinge, wherein the thrust causes the closing clip to tend to move forward, and the torque causes the hinge to tend to increase the opening range of the front parts of the first and second clamps of the closing clip. Even if the closing clip of the present invention of small or large specifications is partially closed and installed in an extension assembly with an outer diameter of 5.5 mm or 10 mm of the actuator assembly of the clamping pliers of the continuous clamping closing clip for more than 4 hours, the hinge of the closing clip gradually undergoes a large plastic deformation due to material creep caused by stress and elongation, so that the opening range of the front parts of the first and second clamps is small. As long as the clamping pliers of the continuous clamping closing clip apply a forward thrust to the opening rod of the closing clip, the torque generated on the hinge can cause the closing clip to increase the opening range of the front parts of the first and second clamps, thereby achieving the technical effect of preventing the excessive plastic deformation of the hinge from causing problems such as clip drop and clamping.

[0015] A push block may be provided below the junction of the rear side of the first clip of the closing clip of the present invention and the hinge piece. When the push block is pushed forward, the pushing force causes the closing clip to tend to move forward. In the clamp applicator for continuously clamping the closing clip, pushing the extension rod can transport the closing clip to the jaws of the clamp applicator for continuously clamping the closing clip. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a diagram showing the appearance of a known closing clip when it is opened;

[0017] Figure 2 Yes means Figure 1 The appearance of the closing clip when it is partially closed;

[0018] Figure 3 Yes means Figure 1 Figure 1 shows the appearance of the closure clip when it is closed;

[0019] Figure 4 is an appearance diagram showing the closing clip of the first embodiment of the present invention when it is opened;

[0020] Figure 5 Yes means Figure 4 Left side view of the closed clip in;

[0021] Figure 6 Yes means Figure 4 The appearance of the closing clip when closed;

[0022] Figure 7 Yes means Figure 6 Left side view of the closed clip in;

[0023] Figure 8 Yes means Figure 4 Figure 1 shows the appearance of the closure clip when it is closed;

[0024] Fig. 9 is an appearance diagram showing a closing clip of a second embodiment of the present invention when it is opened;

[0025] Fig.10 Yes means Fig. 9 Left side view of the closed clip in;

[0026] Fig.11 Yes means Fig. 9 The appearance of the closing clip when it is partially closed;

[0027] Fig.12 Yes means Fig.11 Left side view of the closed clip in;

[0028] Fig.13 Yes means Fig. 9 The left side view of the closing clamp in the clamping state;

[0029] Fig.14 is an appearance diagram showing a closing clip of a third embodiment of the present invention when it is opened;

[0030] Fig.15 Yes means Fig.14 Left side view of the closed clip in;

[0031] Fig.16 Yes means Fig.14 The appearance of the closing clip when closed;

[0032] Fig.17 Yes means Fig.16 Left side view of the closed clip in;

[0033] Fig.18 Yes means Fig.14 Figure 1 shows the appearance of the closure clip when it is closed;

[0034] Fig.19 is an appearance diagram showing a closing clip of a fourth embodiment of the present invention when it is opened;

[0035] Fig. 20 Yes means Fig.19 Left side view of the closed clip in;

[0036] Fig.21 Yes means Fig.19 The appearance of the closing clip when closed;

[0037] Fig. 22 Yes means Fig.21 Left side view of the closed clip in;

[0038] Fig.23 Yes means Fig.19Figure 1 shows the appearance of the closure clip when it is closed;

[0039] Fig.24 is an appearance diagram showing a closing clip of a fifth embodiment of the present invention when it is opened;

[0040] Fig.25 Yes means Fig.24 Left side view of the closed clip in;

[0041] Fig.26 Yes means Fig.24 The appearance of the closing clip when closed;

[0042] Fig. 27 Yes means Fig.26 Left side view of the closed clip in;

[0043] Fig.28 Yes means Fig.24 Figure 2 shows the appearance of the closure clip when clamped. DETAILED DESCRIPTION

[0044] The following is a description of the preferred embodiment of the closure clip of the present invention by way of example and in conjunction with the accompanying drawings. With reference to the detailed description of the preferred embodiment, the implementation method for achieving the above and other objects and advantages of the present invention will be more clearly understood. The terms of position and direction of "rear", "front", "left", "right", "upper" and "lower" can be understood based on the accompanying drawings and the following description. In order to highlight the graphics and description of the closure clip of the present invention, other technical features are not described in detail in the accompanying drawings. For the structure, installation, use and operation process of various closure clips and clip appliers, reference can be made to the patents cited in this specification and other related documents.

[0045] Figures 4 to 8 The closing clip 21 of the first embodiment of the present invention described in the description has a first clip 22, a second clip 23 and a hinge 24. The hinge 24 of the closing clip 21 connects the rear end of the first clip 22 located at the bottom and the rear end of the second clip 23 located at the top, so that the first clip 22, the second clip 23 and the hinge 24 are connected as one. The first clip 22 has a hook 25 at the front, a first clamping surface 26 at the top, and a first boosting protrusion 27 at the rear. The first boosting protrusion 27 has a first boosting surface 28. The second clip 23 has a block 29 at the front, a second clamping surface 30 at the bottom, and a second boosting surface 32 at the rear. The rebound effect of the hinge 24 causes the front parts of the first clip 22 and the second clip 23 to open each other, forming a V-shaped closing clip 21. A push block 33 is provided below the junction of the rear side of the first clip 22 of the closing clip 21 and the hinge 24. When the push block 33 is pushed forward, the push force causes the closing clip 21 to tend to move forward. When the first clip 22 and the second clip 23 of the closing clip 21 are closed together, the first clip 22 and the second clip 23 overcome the bending deformation force of the hinge piece 24 (see Figure 6 and Figure 7 ). When the first clamp 22 and the second clamp 23 of the closing clamp 21 clamp tissue (not shown), the first clamp 22 and the second clamp 23 are closed to each other, so that the clamp block 29 of the second clamp 23 is clamped into the hook 25 of the first clamp 22, and the tissue is clamped between the first clamping surface 26 of the first clamp 22 and the second clamping surface 30 of the second clamp 23. When the first clamp 22 and the second clamp 23 of the closing clamp 21 overcome the bending deformation of the hinge piece 24 and close to each other, the first assisting surface 28 on the first assisting protrusion 27 presses against the second assisting surface 32 (see Figure 8 ).

[0046] like Figure 4 , Figure 5 and Figure 8 As shown, a guide block 34 is provided above the hook 25 of the first clip 22 of the closing clip 21, and a stopper 35 is provided in the hook groove 37 of the hook 25. A guide groove 36 is provided below the block 29 of the second clip 23. The front portion of the stopper 35 in the hook groove 37 of the hook 25 of the first clip 22 of the closing clip 21 is fixed to the front wall of the hook groove 37 of the hook 25, and an upper gap 38 is provided between the upper portion of the stopper 35 and the upper wall of the hook groove 37 of the hook 25. A pressing block 31 is provided below the stopper 35 in the hook groove 37 of the hook 25 of the first clip 22. When the first clip 22 and the second clip 23 of the closing clip 21 clamp the tissue, an upward force is applied to the lower pressing block 31 of the first clip 22 of the closing clip 21, and a downward force is applied to the second clip 23, so that the first clip 22 and the second clip 23 are closed to each other, and the guide groove 36 of the block 29 of the second clip 23 slides along the guide block 34 of the hook 25 of the first clip 22, so that the block 29 of the second clip 23 is stuck in the hook groove 37 of the hook 25 of the first clip 22; at this time, the guide groove 36 of the block 29 is stuck on the stopper 35 in the hook groove 37 of the hook 25, so that the block 29 of the second clip 23 is constrained in the hook groove 37 of the hook 25 of the first clip 22.

[0047] Figures 9 to 13The closing clip 41 of the second embodiment of the present invention described in the description has a first clip 42, a second clip 43 and a hinge 44. The hinge 44 of the closing clip 41 connects the rear end of the first clip 42 located at the bottom and the rear end of the second clip 43 located at the top, and connects the first clip 42, the second clip 43 and the hinge 44 into one. The first clip 42 has a hook 45 at the front, a first clamping surface 46 at the top, and a first boosting protrusion 47 at the rear. The first boosting protrusion 47 has a first boosting surface 48. The second clip 43 has a block 49 at the front, a second clamping surface 50 at the bottom, and a second boosting protrusion 51 at the rear. The second boosting protrusion 51 has a second boosting surface 52. The rebound effect of the hinge 44 causes the front parts of the first clip 42 and the second clip 43 to open each other, forming a V-shaped closing clip 41. An opening rod 53 extending backward and downward is provided at the lower rear side of the hinge 44. When the opening rod 53 is pushed forward, a forward thrust and a moment are generated at the lower rear side of the hinge piece 44, wherein the thrust causes the closing clip 41 to tend to move forward, and the moment causes the closing clip 41 to tend to increase the opening range of the front portions of the first clip 42 and the second clip 43. When the first clip 42 and the second clip 43 of the closing clip 41 are closed to each other, the first clip 42 and the second clip 43 overcome the bending deformation force of the hinge piece 44 (see Fig.11 and Fig.12 ). When the first clip 42 and the second clip 43 of the closing clip 41 clamp the tissue (not shown), the first clip 42 and the second clip 43 are closed to each other, so that the block 49 of the second clip 43 is clamped in the hook 45 of the first clip 42, and the tissue is clamped between the first clamping surface 46 of the first clip 42 and the second clamping surface 50 of the second clip 43. When the first clip 42 and the second clip 43 of the closing clip 41 are closed to each other, the first boosting protrusion 47 is located at the rear side of the second boosting protrusion 51; at this time, the first boosting surface 48 on the first boosting protrusion 47 presses against the second boosting surface 52 on the second boosting protrusion 51 (see Fig.13 ).

[0048] like Fig. 9 , Fig.10 and Fig.13As shown, a guide block 54 is provided above the hook 45 of the first clip 42 of the closing clip 41, and a stopper 55 is provided in the hook groove 57 of the hook 45. A guide groove 56 is provided below the block 49 of the second clip 43. The front portion of the stopper 54 in the hook groove 57 of the hook 46 of the first clip 42 of the closing clip 41 is fixed to the front wall of the hook groove 57 of the hook 45, the lower portion of the stopper 55 is fixed to the lower wall of the hook groove 57 of the hook 46, and an upper gap 58 is provided between the upper portion of the stopper 55 and the upper wall of the hook groove 57 of the hook 45. When the first clip 42 and the second clip 43 of the closing clamp 41 clamp the tissue, the first clip 42 and the second clip 43 close each other, and the guide groove 56 of the block 49 of the second clip 43 slides along the guide block 54 of the hook 45 of the first clip 42, so that the block 49 of the second clip 43 is stuck in the hook groove 57 of the hook 45 of the first clip 42; at this time, the guide groove 56 of the block 49 is stuck on the stopper 55 in the hook groove 57 of the hook 45, so that the block 49 of the second clip 43 is constrained in the hook groove 57 of the hook 45 of the first clip 42.

[0049] Figures 14 to 18 The closing clip 61 of the third embodiment of the present invention described in the description has a first clip 62, a second clip 63 and a hinge 64. The hinge 64 of the closing clip 61 connects the rear end of the first clip 62 located at the bottom and the rear end of the second clip 63 located at the top, and connects the first clip 62, the second clip 63 and the hinge 64 into one. The first clip 62 has a hook 65 at the front, a first clamping surface 66 at the top, and a first boosting protrusion 67 at the rear. The first boosting protrusion 67 has a first boosting surface 68. The second clip 63 has a block 69 at the front, a second clamping surface 70 at the bottom, and a second boosting surface 72 at the rear. The rebound effect of the hinge 64 causes the front parts of the first clip 62 and the second clip 63 to open each other, forming a V-shaped closing clip 61. An opening rod 73 extending backward and downward is provided at the lower rear side of the hinge 64. When the opening rod 73 is pushed forward, a forward thrust and a moment are generated at the lower rear side of the hinge piece 64, wherein the thrust causes the closing clip 61 to tend to move forward, and the moment causes the closing clip 61 to tend to increase the opening range of the front parts of the first clip 62 and the second clip 63. When the first clip 62 and the second clip 63 of the closing clip 61 are closed to each other, the first clip 62 and the second clip 63 overcome the bending deformation force of the hinge piece 64 (see Fig.16 and Fig.17 ). When the first clamp 62 and the second clamp 63 of the closing clamp 61 clamp tissue (not shown), the first clamp 62 and the second clamp 63 are closed to each other, so that the clamp block 69 of the second clamp 63 is clamped into the hook 65 of the first clamp 62, and the tissue is clamped between the first clamping surface 66 of the first clamp 62 and the second clamping surface 70 of the second clamp 63. When the first clamp 62 and the second clamp 63 of the closing clamp 61 are closed to each other, the first assisting surface 68 on the first assisting protrusion 67 presses against the second assisting surface 72 (see Fig.18 ).

[0050] like Fig.14 , Fig.15 and Fig.18 As shown, a guide block 74 is provided above the hook 65 of the first clip 62 of the closing clip 61, and a stopper 75 is provided in the hook groove 77 of the hook 65. A guide groove 76 is provided below the block 69 of the second clip 63. The front portion of the stopper 75 in the hook groove 77 of the hook 65 of the first clip 62 of the closing clip 61 is fixed to the front wall of the hook groove 77 of the hook 65, an upper gap 78 is provided between the upper portion of the stopper 75 and the upper wall of the hook groove 77 of the hook 65, and a lower gap 79 is provided between the lower portion of the stopper 75 and the lower wall of the hook groove 77 of the hook 65. When the first clip 62 and the second clip 63 of the closing clamp 61 clamp the tissue, the first clip 62 and the second clip 63 close to each other, and the guide groove 76 of the block 69 of the second clip 63 slides along the guide block 74 of the hook 65 of the first clip 62, so that the block 69 of the second clip 63 is stuck in the hook groove 77 of the hook 65 of the first clip 62; at this time, the guide groove 76 of the block 69 is stuck on the stopper 75 in the hook groove 77 of the hook 65, so that the block 69 of the second clip 63 is constrained in the hook groove 77 of the hook 65 of the first clip 62.

[0051] Figures 19 to 23 The fourth embodiment of the present invention described in the closing clip 81 includes a first clip 82, a second clip 83 and a hinge 84. The hinge 84 of the closing clip 81 connects the rear end of the first clip 82 located below and the rear end of the second clip 83 located above, connecting the first clip 82, the second clip 83 and the hinge 84 into one. The first clip 82 has a hook 85 at the front, a first clamping surface 86 at the top, and a first boosting protrusion 87 at the rear. The first boosting protrusion 87 has a first boosting surface 88. The second clip 83 has a block 89 at the front, a second clamping surface 90 at the bottom, and a second boosting surface 92 at the rear. The rebound effect of the hinge 84 causes the front parts of the first clip 82 and the second clip 83 to open each other, forming a V-shaped closing clip 81. A push block 93 extending backward is provided below the junction of the hinge 84 and the rear side of the first clip 82. When the push block 93 is pushed forward, the push force causes the closing clip 81 to tend to move forward. When the first clip 82 and the second clip 83 of the closing clip 81 are closed together, the first clip 82 and the second clip 83 overcome the bending deformation force of the hinge piece 84 (see Fig.21 and Fig. 22). When the first clamp 82 and the second clamp 83 of the closing clamp 81 clamp the tissue (not shown), the first clamp 82 and the second clamp 83 close to each other, so that the clamp block 89 of the second clamp 83 is clamped into the hook 85 of the first clamp 82, and the tissue is clamped between the first clamping surface 86 of the first clamp 82 and the second clamping surface 90 of the second clamp 83. When the first clamp 82 and the second clamp 83 of the closing clamp 81 overcome the bending deformation of the hinge piece 84 and close to each other, the first assisting surface 88 on the first assisting protrusion 87 presses against the second assisting surface 92 (see Fig.23 ).

[0052] like Fig.19 , Fig. 20 and Fig.23 As shown, a guide block 94 is provided above the hook 85 of the first clip 82 of the closing clip 81, and a stopper 95 is provided in the hook groove 97 of the hook 85. A guide groove 96 is provided below the block 89 of the second clip 83. The front portion of the stopper 95 in the hook groove 97 of the hook 85 of the first clip 82 of the closing clip 81 is fixed to the front wall of the hook groove 97 of the hook 85, an upper gap 98 is provided between the upper portion of the stopper 95 and the upper wall of the hook groove 97 of the hook 85, and a lower gap 99 is provided between the lower portion of the stopper 95 and the lower wall of the hook groove 97 of the hook 85. When the first clip 82 and the second clip 83 of the closing clamp 81 clamp the tissue, the first clip 82 and the second clip 83 close to each other, and the guide groove 96 of the block 89 of the second clip 83 slides along the guide block 94 of the hook 85 of the first clip 82, so that the block 89 of the second clip 83 is stuck in the hook groove 97 of the hook 85 of the first clip 82; at this time, the guide groove 96 of the block 89 is stuck on the stopper 95 in the hook groove 97 of the hook 85, so that the block 89 of the second clip 83 is constrained in the hook groove 97 of the hook 85 of the first clip 82.

[0053] Figure 24 to Figure 28 The fifth embodiment of the present invention described in the closing clip 101 includes a first clip 102, a second clip 103 and a hinge 104. The hinge 104 of the closing clip 101 connects the rear end of the first clip 102 located at the bottom and the rear end of the second clip 103 located at the top, and connects the first clip 102, the second clip 103 and the hinge 104 into one. The first clip 102 has a hook 105 at the front, a first clamping surface 106 at the top, and a first boosting protrusion 107 at the rear. The first boosting protrusion 107 has a first boosting surface 108. The second clip 103 has a block 109 at the front, a second clamping surface 110 at the bottom, and a second boosting surface 112 at the rear. The rebound effect of the hinge 104 causes the front parts of the first clip 102 and the second clip 103 to open each other, forming a V-shaped closing clip 101. When the first clip 102 and the second clip 103 of the closing clip 101 are closed together, the first clip 102 and the second clip 103 overcome the bending deformation force of the hinge piece 104 (see Fig.26and Fig. 27 ). When the first clamp 102 and the second clamp 103 of the closing clamp 101 clamp tissue (not shown), the first clamp 102 and the second clamp 103 close to each other, so that the clamp block 109 of the second clamp 103 is clamped into the hook 105 of the first clamp 102, and the tissue is clamped between the first clamping surface 106 of the first clamp 102 and the second clamping surface 110 of the second clamp 103. When the first clamp 102 and the second clamp 103 of the closing clamp 101 close to each other, the first assisting surface 108 on the first assisting protrusion 107 presses against the second assisting surface 112 (see Fig.28 ).

[0054] like Fig.24 , Fig.25 and Fig.28 As shown, a guide block 114 is provided above the hook 105 of the first clip 102 of the closing clip 101, and a stopper 115 is provided in the hook groove 117 of the hook 105. A guide groove 116 is provided below the block 109 of the second clip 103. The front portion of the stopper 115 in the hook groove 117 of the hook 105 of the first clip 102 of the closing clip 101 is fixed to the front wall of the hook groove 117 of the hook 105, and an upper gap 118 is provided between the upper portion of the stopper 115 and the upper wall of the hook groove 117 of the hook 105. A downward pressing groove 113 is provided below the stopper 115 in the hook groove 117 of the hook 105 of the first clip 102. When the first clip 102 and the second clip 103 of the closing clip 101 clamp the tissue, an upward force is applied to the lower pressure groove 113 of the first clip 102 of the closing clip 101, and a downward force is applied to the second clip 103, so that the first clip 102 and the second clip 103 are closed to each other, and the guide groove 116 of the block 109 of the second clip 103 slides along the guide block 114 of the hook 105 of the first clip 102, so that the block 109 of the second clip 103 is stuck in the hook groove 117 of the hook 105 of the first clip 102; at this time, the guide groove 116 of the block 109 is stuck on the stopper 115 in the hook groove 117 of the hook 105, so that the block 109 of the second clip 103 is constrained in the hook groove 117 of the hook 105 of the first clip 102.

[0055] The various technical features, technical solutions and technical effects of the closing clips of the above five embodiments of the present invention may be implemented individually, cross-implemented or implemented in combination to achieve the best technical effect.

Claims

1. A closing clamp, wherein the closing clamp comprises a first clamping piece located at a lower part, a second clamping piece located at an upper part and a hinge piece located at a rear part; the hinge piece connects the first clamping piece and the second clamping piece, and connects the first clamping piece, the second clamping piece and the hinge piece into one; the front parts of the first clamping piece and the second clamping piece are opened to each other to form a V-shaped closing clamp; the front part of the first clamping piece has a hook, and the first clamping surface is provided at the upper part; the front part of the second clamping piece has a clamping block, and the second clamping surface is provided at the lower part; when the first clamping piece and the second clamping piece of the closing clamp are closed to each other, the first clamping piece and the second clamping piece overcome the bending deformation force of the hinge piece; when the first clamping piece and the second clamping piece of the closing clamp clamp tissue, the first clamping piece and the second clamping piece are closed to each other, so that the clamping block of the second clamping piece is clamped into the hook groove of the hook of the first clamping piece, and the tissue is clamped between the first clamping surface of the first clamping piece and the second clamping surface of the second clamping piece; Features: The first clip of the closing clip has a first assisting protrusion at the rear; the first assisting protrusion has a first assisting surface; the second clip has a second assisting surface at the rear; when the first clip and the second clip of the closing clip are closed to each other, the first assisting surface on the first assisting protrusion presses against the second assisting surface.

2. The closure clip according to claim 1, Its characteristics are: The rear part of the second clip of the closing clamp is provided with a second assisting protrusion; the second assisting protrusion is provided with the second assisting surface; when the first clip and the second clip of the closing clamp are closed to each other, the first assisting protrusion is located at the rear side of the second assisting protrusion, and at this time, the first assisting surface on the first assisting protrusion presses against the second assisting surface on the second assisting protrusion.

3. The closure clip according to claim 1, Its characteristics are: An opening rod extending rearward and downward is provided below the rear side of the hinge piece of the closing clip; when the opening rod is subjected to a forward thrust, a forward thrust and a torque are generated below the rear side of the hinge piece, wherein the thrust causes the closing clip to tend to move forward, and the torque causes the hinge piece to tend to increase the extent to which the front parts of the first clamp piece and the second clamp piece of the closing clip open to each other.

4. The closure clip according to claim 1, Its characteristics are: A push block is provided below the junction between the rear side of the first clamping piece of the closing clamp and the hinge piece; when the push block is pushed forward, the pushing force causes the closing clamp to tend to move forward.

5. The closure clip according to claim 1, Its characteristics are: There is a downward pressing block below the hook groove of the hook of the first clamp of the closing clamp; when the first clamp and the second clamp of the closing clamp clamp tissue, an upward force is applied to the downward pressing block of the first clamp of the closing clamp, and a downward force is applied to the second clamp, so that the first clamp and the second clamp are closed to each other, so that the block of the second clamp is inserted into the hook of the first clamp, and the tissue is clamped between the first clamping surface of the first clamp and the second clamping surface of the second clamp.

6. The closure clip according to claim 1, Its characteristics are: A pressing groove is provided below the hook groove of the hook of the first clip of the closing clip; When the first clamp and the second clamp of the closing clamp clamp tissue, an upward force is applied to the lower pressure groove of the first clamp of the closing clamp, and a downward force is applied to the second clamp, so that the first clamp and the second clamp are closed to each other, so that the clamping block of the second clamp is inserted into the clamping hook of the first clamp, and the tissue is clamped between the first clamping surface of the first clamp and the second clamping surface of the second clamp.

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