Multi-channel simultaneous closing tissue clamp

Abstract

The utility model relates to the field of medical instruments capable of being implanted into a human body, in particular to a tissue clamp for closing lumen tissues such as a blood vessel and a bile duct in a surgical operation. A plurality of U-shaped double-arm clamp bodies are arranged, the U-shaped double-arm clamp bodies are connected through a conjoined mechanism, each U-shaped double-arm clamp body is provided with an upper clamp arm and a lower clamp arm, the tails of the upper clamp arm and the lower clamp arm are connected, the heads of the upper clamp arm and the lower clamp arm are open and provided with a guide-in opening, and the guide-in opening is inclined from the head to the inner wall in a mode that the outer portion is large and the inner portion is small. And the opening directions of the U-shaped double-arm clamp bodies are consistent. The inner wall between the upper clamping arm and the lower clamping arm is provided with protruding teeth for enhancing the anti-skid performance, and the protruding teeth of the U-shaped double-arm clamping bodies are arranged in a staggered mode or in a consistent mode.

Description

Technical Field

[0001] The utility model discloses a multi-channel tissue clamp for closing simultaneously, which relates to the field of medical devices that can be implanted in human body, and in particular to a tissue clamp used for closing lumen tissues such as blood vessels and bile ducts during surgical operations. Background Art

[0002] During surgical operations, it is necessary to cut off the lumen tissues such as blood vessels and bile ducts in the body. Before cutting off, the lumen tissues must be closed to prevent the outflow of blood or other body fluids. In the early days, the lumen tissues to be cut off were compressed with hemostats, and the two sides were tied with sutures before cutting off in the middle. This was time-consuming and did not meet the requirements of modern surgery for speed and simplicity.

[0003] In recent years, tissue clips made of polymer materials have been widely used. Among them, V-shaped tissue clips are widely used in surgical operations. Before use, the body of the V-shaped tissue clip is in an open state. When in use, the protruding mechanism on both sides of the V-shaped clip body is connected with the metal jaw groove at the front end of the matching clamping instrument. When the lumen tissue to be clamped enters the opening of the V-shaped clip body, the clamping instrument is clamped so that the two arms of the V-shaped clip body press the lumen tissue, and the hook lock mechanism at the front end of the V-shaped clip body is buckled. After the clamping instrument is released, the V-shaped clip body presses the periphery of the lumen tissue to prevent blood or other body fluids from flowing out.

[0004] The body of the V-shaped tissue clip is generally 1-2 mm thick. To improve the safety and reliability of lumen tissue closure, doctors often use multiple clips to clamp the retained end of the tissue. The larger metal jaws of the clamping instrument and the protuberances on both sides of the V-shaped clamp body (generally 3-4 mm in height) prevent multiple V-shaped tissue clips from getting close to each other. They cannot be used when closing lumen tissue with shorter stumps, or they interfere with each other, causing poor clamping or falling, which cannot improve the safety and reliability of the surgery. Multiple clamping will also significantly prolong the operation time, which is not conducive to the efficiency of the operation. Especially in laparoscopic surgery, multiple entries and exits in the surgical channel will also increase the risk of infection.

[0005] When closing some pressurized luminal tissues (such as arteries), when multiple independent tissue clips are used, if the first tissue clip close to the high-pressure end is detached or falls off due to impact, the subsequent tissue clips cannot provide more or stronger closing performance, and the safety and reliability cannot actually be improved much.

[0006] Tissue clips used to close luminal tissues need to remain in the human body for a long time after surgery, and the degradation cycle of polymer materials in the human body is very long, with a very small number of biomaterials taking 1-10 months, and most even longer than the normal human lifespan. Therefore, the multiple protrusions of the irregular V-shaped tissue clips can easily cause friction and damage to surrounding tissues, especially after lung and liver surgery, which may cause symptoms such as coughing up bleeding and internal bleeding.

[0007] In addition, the hook-locking structure of the V-shaped tissue clip needs to completely penetrate the tissue to buckle. In laparoscopic surgery, due to the surgical field of view or the operating angle of the instrument, some luminal tissues cannot or are inconvenient to be completely free. In this case, it is difficult for doctors to find out whether the V-shaped tissue clip is buckled normally or there is tissue interlayer in it. The hook-locking mechanism of the tissue clip often collapses or slips during and after the operation, especially after the operation, which is very likely to cause medical accidents such as serious injury or even death to the patient.

[0008] In major surgeries or intraoperative emergencies, doctors need to quickly and continuously close the lumen tissue multiple times. The existing continuous clip applicators generally use pre-installed V-shaped tissue clips. The V-shaped tissue clips are kept in a semi-closed state for a long time inside the continuous clip applicators. The stress changes caused by long-term deformation of the connection parts cause common failures such as the inability to open the clamp mouth during use and the connection parts are easy to break after use. In addition, the irregular V-shaped tissue clip body is not conducive to the regular arrangement and sequential pushing of more V-shaped tissue clips, and it will also cause failures such as failure to push into place, premature falling and jamming during use. Utility Model Content

[0009] The purpose of the utility model is to provide a multi-channel simultaneous closing tissue clip to address the above-mentioned deficiencies. The multi-channel simultaneous closing tissue clip of the utility model has no protruding mechanism on the outside, and the multi-channel tissue closing clips are associated with each other, with fixed spacing, and mutually enhance the closing performance. The luminal tissue can be closed without completely freeing it. In combination with a special clamping instrument that can provide functions such as clamping, observation, adjustment, and detection of luminal size, the special clamping instrument can also realize the function of loading more multi-channel tissue closing clips for continuous application, thereby ensuring the safety and continuity of surgical operations, improving surgical efficiency, reducing the need to replace instruments, and reducing the frequency of instrument punctures in the human body.

[0010] A multi-channel simultaneous closing tissue clip is realized by adopting the following technical solutions:

[0011] A multi-channel simultaneous closing tissue clamp is provided with a multi-channel U-shaped double-arm clamp body, and the multi-channel U-shaped double-arm clamp bodies are connected by a joint mechanism. Each U-shaped double-arm clamp body is provided with an upper clamp arm and a lower clamp arm, and the upper clamp arm and the lower clamp arm are connected at the tail, and the upper clamp arm and the lower clamp arm are open at the head and provided with an introduction port, which is large outside and small inside and is inclined from the head to the inner wall, and the opening direction of each U-shaped double-arm clamp body is consistent. The inner wall between the upper clamp arm and the lower clamp arm is provided with convex teeth for enhancing anti-slip performance, and the convex teeth of the multiple U-shaped double-arm clamp bodies are arranged in a staggered manner or in a consistent manner.

[0012] A multi-channel simultaneous closing tissue clamp is a multi-channel U-shaped double-arm clamp body conjoined structure.

[0013] A multi-channel simultaneously closed tissue clip has a cube, a rectangular parallelepiped, a cylinder and an elliptical cylinder shape, has no outward protrusions or burr structures; all appearance surfaces are provided with rounded arc corners to prevent puncture and damage to tissues.

[0014] The multi-channel U-shaped double-arm clamp body of the multi-channel simultaneous closing tissue clamp has a conjoined structure that is flat or concave; the conjoined structure and the inner wall are closed or penetrating.

[0015] The inner wall openings of a multi-channel U-shaped double-arm clamp body of a multi-channel simultaneous closing tissue clamp are in the same direction.

[0016] The upper clamp arm and the lower clamp arm of a U-shaped double-arm clamp body of a multi-channel simultaneous closing tissue clamp are relatively parallel, and the inner walls are provided with a certain spacing, and the spacing between the inner walls is 0.1-4 mm; each inner wall is provided with convex teeth for enhancing anti-slip performance, and can also be smooth; the convex teeth of the multi-channel U-shaped double-arm clamp body are arranged in a staggered manner or in a consistent manner.

[0017] The tails of a U-shaped double-arm clamp body of a multi-channel simultaneous closing tissue clamp are connected to provide structural stability for an upper clamp arm and a lower clamp arm.

[0018] A U-shaped double-arm clamp body with multiple channels and closed simultaneously has an introduction port between the upper clamp arm and the lower clamp arm at the head. The introduction port is open and inclined from the head to the inner wall with a larger outer side and a smaller inner side, and is used to guide the tubular cavity tissue into the U-shaped inner wall.

[0019] The inlet of a U-shaped double-arm clamp body of a multi-channel simultaneous tissue closing clamp is provided with a barb close to or beyond the midline of the U-shaped inner wall to form a gap smaller than the spacing of the U-shaped inner wall to prevent the closed tubular cavity tissue from slipping out.

[0020] A multi-channel tissue clamp with simultaneous closure is provided with a connecting mechanism between each clamp body, and the longitudinal spacing of the inner wall formed by the connecting mechanism is larger than the spacing of the U-shaped inner wall of each clamp body, so as to accommodate the segment expansion recovery of the clamped tissue.

[0021] A conjoined structure of a multi-channel tissue clamp that closes simultaneously enables multiple U-shaped double-arm clamps to be fixedly connected together, and the lateral spacing of the multiple U-shaped double-arm clamps can be consistent or different. The spacing between each U-shaped double-arm clamp is 0.2-3 mm.

[0022] A multi-channel simultaneously closed tissue clamp body mechanism can also be provided with reinforcing ribs to improve the integrated strength; the regular spacing of the reinforcing ribs can be used for positioning when arranged in sequence front to back or in the transverse direction.

[0023] A multi-channel simultaneous closing tissue clip is composed of a plurality of models, which are distinguished by different parameters such as the number of U-shaped double-arm clip bodies, the lateral spacing of the U-shaped double-arm clip bodies, the inner wall size and size difference of the U-shaped double-arm clip bodies, and the thickness of the U-shaped double-arm clip bodies.

[0024] A multi-channel simultaneously closed tissue clip has a regular shape, and a plurality of tissue clips can be arranged in sequence front to back or laterally. The contact surfaces between the tissue clips are flat, so that the thrust directions are consistent during synchronous movement without mutual interference.

[0025] The utility model discloses a multi-channel simultaneous closing tissue clip made of polymer material.

[0026] A multi-channel simultaneous closing tissue clip has the following beneficial effects:

[0027] A multi-channel simultaneous closing tissue clamp can simultaneously close multiple channels at one lumen tissue to form multiple compression closing lines, eliminating the need to apply clamps multiple times during surgery, especially in laparoscopic surgery, reducing the need for instruments to be repeatedly transported in and out of the human body and clamp tissue, thereby greatly improving surgical efficiency.

[0028] The multiple clamp bodies of a multi-channel simultaneous closing tissue clip are parallel and closed simultaneously, providing a stable and fixed spacing between the clamp bodies. There is no need to consider the problems of mutual interference and inability to apply a single clamp due to multiple clamping, squeezed out due to angle formation, and breakage due to overlap, thereby improving the quality of surgery.

[0029] A multi-channel simultaneous closing tissue clip has a connecting mechanism between the multiple clamp bodies, which can reinforce each other and enhance the tissue closing force to achieve a closing effect of 1+1>2, thereby preventing independent single multiple tissue clips from being damaged by impact one by one when used in a high-pressure tubular tissue environment, thereby improving surgical safety.

[0030] The internal gap formed by the joint mechanism between the multiple clamp bodies of a multi-channel simultaneous closing tissue clamp is larger than the gap between the U-shaped arms of each clamp body. After closing the luminal tissue, a "candied haws"-like "large diameter-small diameter-large diameter-small diameter-large diameter..." is formed in the axial direction of the tissue, which greatly improves the axial anti-fall-off capability.

[0031] Most polymer parts have structural memory properties, that is, there will be a reverse restoring force after changing the initial structural properties. Each clamp of a multi-channel simultaneous closing tissue clamp is a U-shaped double-arm structure with a stable connection at the tail, which can achieve a large closing pressure, and the direction of the material memory restoring force is consistent with the direction of the tissue closing force. However, the commonly used V-shaped tissue clamp must be bent at the rear end when used, and the direction of its material memory restoring force is opposite to the direction of the tissue closing force, which makes it easier to cause the V-shaped tissue clamp to break, collapse, and other clamping failures.

[0032] The tail of a multi-channel tissue clamp that closes simultaneously is connected to form a large closing pressure force, and there is no head locking hook, so there is no need to completely peel off the distal tissue when in use, avoiding injuries caused by hook puncture. The front end of the V-shaped tissue clamp is provided with a locking hook structure, and the distal tissue must be completely peeled off when in use. In a surgical environment where it is not easy to completely peel off, doctors generally use the "blind clamp" method, that is, using the locking hook to clamp the tissue directly, which may cause puncture injuries; sometimes the locking hook cannot puncture the tissue, and the tissue clamped between the locking hooks is easy to slip, resulting in clamping failure; even worse, after the operation, the tissue between the locking hooks swells or the V-shaped tissue clamp falls off after the swelling disappears, causing medical accidents such as bleeding and leakage, requiring re-operation, and severe cases may even endanger life.

[0033] A multi-channel simultaneous closing tissue clamp head is provided with an introduction port, which is large outside and small inside, which is conducive to guiding the lumen tissue to be flattened and closed, and improving the application success rate. At the smallest part of the introduction port, a barb smaller than the inner wall spacing is provided, and the height exceeds the inner wall midline, which can effectively enhance the radial shedding performance after closure.

[0034] A multi-channel simultaneous closing tissue clamp has a U-shaped inner wall of each clamp body provided with a plurality of convex teeth, which enhances the friction between the clamp body and the tissue, improves the closing performance and reduces the risk of falling off.

[0035] The U-shaped inner wall spacing of each clip body of a multi-channel simultaneous closed tissue clip can be the same or different. Different compression force segments are provided for some tissues with special treatment needs. Reducing the compression force in the segments with larger spacing is beneficial to local blood supply and improves tissue recovery ability.

[0036] A multi-channel simultaneous closing tissue clamp has a regular and round appearance without protrusions or burrs, which can prevent damage to surrounding tissues during and after surgery and reduce friction stimulation to surrounding tissues after healing.

[0037] A multi-channel simultaneously closed tissue clip has a regular appearance and can be arranged in a regular manner in a horizontal or vertical direction, which is conducive to loading and transporting in a special continuous-fire instrument. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The utility model will be further described below in conjunction with the accompanying drawings:

[0039] Figure 1 It is a stereoscopic image of a multi-channel simultaneously closed tissue clip.

[0040] Figure 2 The figure is a three-dimensional schematic diagram of a double-channel tissue clamp which is an example of a multi-channel simultaneously closed tissue clamp.

[0041] Figure 3 It is a schematic diagram of lateral clamping of multiple simultaneous closed tissue clips.

[0042] Figure 4 It is a schematic diagram of positive clamping of multiple simultaneous closing tissue clips.

[0043] Figure 5 The diagram is a schematic diagram of a downward clamping of multiple tissue clips that close simultaneously.

[0044] Figure 6 The present invention is a schematic diagram of multiple simultaneously closed tissue clips arranged in sequence.

[0045] Figure 7 It is a schematic diagram of the V-shaped tissue clip structure.

[0046] Figure 8 It is a schematic diagram of multiple clamping of V-shaped tissue clips.

[0047] Fig. 9 A schematic diagram of the working of a multi-channel simultaneous closing tissue clip and a special clip-applying device

[0048] Markings in the figure: 1. Multi-channel tissue clamp closed simultaneously; 2. One-channel U-shaped double-arm clamp; 3. Two-channel U-shaped double-arm clamp; 38. Multi-channel U-shaped double-arm clamp; 4. Joint mechanism; 5. Upper clamp arm; 6. Lower clamp arm; 7. Introduction port; 8. Inner wall of the clamp;

[0049] 9. Convex teeth; 10. Inner wall of the joint; 11. Lumen tissue; 12. Barbs; 13. Closure line; 14. Multiple closure lines; 15. Reinforcement ribs; 20. V-shaped tissue clamp; 21. Connecting ridges; 30. Special clamping instrument; 31. Clamp seat tube; 32. Clamp head; 33. Push pin; 34. Elastic positioning sheet; 35. Clamp groove; 36. Clamp teeth; 37. Hook teeth. DETAILED DESCRIPTION

[0050] See attached Figure 1-9 A multi-channel simultaneous closing tissue clamp 1 is provided with a U-shaped multi-channel double-arm clamp body 2, 3, 38, and the multi-channel double-arm clamp bodies are connected by a joint mechanism 4. Each U-shaped double-arm clamp body is provided with an upper clamp arm 5 and a lower clamp arm 6, and the upper clamp arm 5 and the lower clamp arm 6 are connected at the tail. The upper clamp arm 5 and the lower clamp arm 6 are open at the head and provided with an introduction port 7. The introduction port 7 is large outside and small inside and is inclined from the head to the inner wall 8 of the clamp body. The opening direction of each double-arm clamp body is consistent. The inner wall 8 of the clamp body between the upper clamp arm 5 and the lower clamp arm 6 is provided with a convex tooth 9 for enhancing the anti-slip performance. The convex teeth of the multi-channel double-arm clamp bodies are arranged in a staggered manner or in a consistent manner.

[0051] A multi-channel simultaneous closing tissue clamp 1 is a structure of a multi-channel double-arm clamp body 2, 3, 38 connected together.

[0052] A multi-channel tissue clamp 1 with simultaneous closure has a cube, a rectangular parallelepiped, a cylinder and an elliptical cylinder shape, has no outward protrusions or burr structures, and has a rounded appearance to prevent puncture and damage to tissues.

[0053] A multi-channel double-arm clamp for closing tissues at the same time, wherein the conjoined body mechanism 4 of the multi-channel double-arm clamp is flat or concave; the conjoined body mechanism 4 and the inner wall 10 of the conjoined body are closed or penetrating.

[0054] The introduction ports 7 of the multi-channel double-arm clamp bodies of the multi-channel simultaneous closing tissue clamp 1 are in the same direction.

[0055] The upper clamp arm 5 and the lower clamp arm 6 of a double-arm clamp with multiple channels of simultaneously closed tissue clamps 1 are relatively parallel, and the inner wall 8 of the clamp body is provided with a certain spacing, and the spacing between the inner walls is 0.1-4 mm; each inner wall of the clamp body is provided with convex teeth 9 for enhancing anti-slip performance, and can also be smooth; the convex teeth 9 of the multiple double-arm clamp body are arranged in a staggered manner or in a consistent manner.

[0056] The tails of the double-arm clamp bodies of a multi-channel simultaneous closing tissue clamp 1 are connected so that an upper clamp arm 5 and a lower clamp arm 6 form a fixed structure.

[0057] A double-arm clamp body of a multi-channel tissue clamp 1 is provided with an introduction port 7 at the head. The introduction port is open and inclined from the head to the inner wall with a larger outside and a smaller inside. The introduction port is used to guide the tubular cavity tissue 11 into between the upper clamp arm 5 and the lower clamp arm 6.

[0058] A double-arm clamp body introduction port 7 of a multi-channel simultaneous closing tissue clamp 1 is provided with a barb 12 close to or beyond the center line of the clamp inner wall 8 to form a gap smaller than the spacing of the clamp inner wall 8 to prevent the closed luminal tissue from slipping out.

[0059] A multi-channel tissue clamp with simultaneous closure is provided with a coupling mechanism 4 between each clamp body. The longitudinal spacing of the inner wall 10 formed by the coupling mechanism is greater than the spacing of the inner wall 8 of the clamp body, so as to accommodate the segmental expansion of the clamped luminal tissue 11.

[0060] A conjoined structure 4 of a multi-channel tissue clamp 1 for simultaneous closure fixes multiple double-arm clamps in one body, wherein the lateral spacings of the multiple double-arm clamps can be consistent or different, and the spacing between each double-arm clamp is 0.2-3 mm.

[0061] A combined mechanism 4 of a multi-channel tissue clip 1 that closes simultaneously can also be provided with reinforcing ribs 15 to improve the integrated strength; the regular spacing of the reinforcing ribs 15 can be used for positioning when arranged in sequence front to back or in the transverse direction.

[0062] A multi-channel simultaneous closing tissue clip 1 is composed of a plurality of models, which are distinguished according to parameters such as the number of double-armed clip bodies, the height and depth of the inner wall of the clip body, and the transverse width of the joint body mechanism.

[0063] A multi-channel simultaneously closed tissue clip 1 has a regular shape, and can realize that a plurality of tissue clips are arranged in sequence front to back or transversely, and the contact surfaces between the tissue clips are flat, so that the thrust directions are consistent during synchronous movement without mutual interference.

[0064] The utility model discloses a multi-channel simultaneous closing tissue clip made of polymer material.

[0065] A multi-channel simultaneous closing tissue clamp is provided with at least two U-shaped double-arm clamp bodies.

[0066] A multi-channel simultaneous closed tissue clip is used in a surgical operation and is used in conjunction with a special clipping instrument 30. The special clipping instrument 30 is provided with a clamp seat tube 31, a clamp head 32, and a push pin 33. The multi-channel simultaneous closed tissue clip 1 is adaptively arranged in sequence in the clamp seat tube 31. The tube wall of the clamp seat tube 31 has an elastic positioning piece 34 extending inward, which presses the reinforcing rib 15 of the joint mechanism 4 of the multi-channel simultaneous closed tissue clip 1, so that the multi-channel simultaneous closed tissue clip 1 is fixedly arranged in sequence on the front end surface of the clamp seat tube and is restricted to only move forward and not backward. The front end of the clamp seat tube 31 is provided with a semi-open clamping groove 35, and the two sides of the clamping groove 35 are provided with clamping teeth 36, and the front end is provided with hook teeth 37. The clamp head 32 is rotatably and movably connected to the front end of the clamp seat tube 31, and the clamp head 32 is rotatably and movably adapted to the clamping groove 35. The push pin 33 is arranged inside the clamp seat tube 31, and the front end is against the rear end of the queue of the multi-channel simultaneous closed tissue clip 1. Each time the push pin 33 works, the distance it pushes is equal to the length of the multi-channel simultaneous closed tissue clip 1. During surgery, the luminal tissue 11 to be closed is now inserted into the jaws, and the clamp head 32 is rotated and closed to flatten the luminal tissue 11 (if the clamp head cannot completely cover the luminal tissue to be closed, it means that the currently selected multi-channel simultaneous closed tissue clip 1 model is not suitable and needs to be replaced with a larger model), the clamp teeth 36 and the hook teeth 37 restrict and flatten the luminal tissue, and at this time, the push pin 33 works once, so that the multi-channel simultaneous closed tissue clip 1 pushes open the elastic positioning sheet 34, and the entire queue moves forward one station, and the first multi-channel simultaneous closed tissue clip 1 can compress and close the luminal tissue through the introduction port 7. After releasing the clamp head 32, other surgical actions can be performed, including the continuous use of the multi-channel simultaneous closed tissue clip 1 to close multiple luminal tissues.

Claims

1. A multi-channel simultaneous closing tissue clip, characterized in that: A plurality of U-shaped double-arm clamps are provided, and the plurality of U-shaped double-arm clamps are connected by a joint mechanism. Each U-shaped double-arm clamp is provided with an upper clamp arm and a lower clamp arm. The upper clamp arm and the lower clamp arm are connected at their tail ends. The upper clamp arm and the lower clamp arm have openings at their heads and are provided with an introduction port. The introduction port is larger at the outside and smaller at the inside and is inclined from the head to the inner wall. The opening direction of each U-shaped double-arm clamp is consistent.

2. The multi-channel simultaneous closing tissue clip according to claim 1, characterized in that: The inner wall between the upper clamping arm and the lower clamping arm is provided with convex teeth for enhancing the anti-slip performance, and the convex teeth of the multi-channel U-shaped double-arm clamping body are arranged in a staggered manner.

3. The multi-channel simultaneous closing tissue clip according to claim 1, characterized in that: The multi-channel simultaneous closing tissue clamp is a multi-channel U-shaped double-arm clamp body conjoined structure, and the multi-channel simultaneous closing tissue clamp is provided with at least two U-shaped double-arm clamp bodies.

4. The multi-channel simultaneous closing tissue clip according to claim 1, characterized in that: The shapes of the multi-channel simultaneously closed tissue clips are cubes, rectangular parallelepipeds, cylinders and elliptical cylinders, with no outward protrusions or burr structures; all exterior surfaces are provided with rounded corners to prevent puncture and damage to tissues.

5. The multi-channel simultaneous closing tissue clip according to claim 1, characterized in that: The combined mechanism of the multi-channel U-shaped double-arm clamp body of the multi-channel simultaneous closing tissue clamp is flat; the combined mechanism and the inner wall are closed.

6. The multi-channel simultaneous closing tissue clip according to claim 1, characterized in that: The inner wall openings of the multi-channel U-shaped double-arm clamp body of the multi-channel simultaneous closing tissue clamp are in the same direction; the upper clamp arm and the lower clamp arm of the U-shaped double-arm clamp body of the multi-channel simultaneous closing tissue clamp are relatively parallel, and a certain spacing is set on the inner wall, and the spacing between the inner walls is 0.1-4 mm; each inner wall is provided with convex teeth for enhancing the anti-slip performance; the convex teeth of the multi-channel U-shaped double-arm clamp body are arranged in a staggered manner.

7. The multi-channel simultaneous closing tissue clip according to claim 1, characterized in that: An introduction port is provided between the upper clamp arm and the lower clamp arm of the head of the U-shaped double-arm clamp body of the multi-channel simultaneous closing tissue clamp. The introduction port is open and inclined from the head to the inner wall with a larger outside and a smaller inside, and is used to guide the tubular cavity tissue into the U-shaped inner wall.

8. The multi-channel simultaneous closing tissue clip according to claim 1, characterized in that: The introduction port of the U-shaped double-arm clamp body of the multi-channel simultaneous closing tissue clamp is provided with a barb close to or beyond the midline of the U-shaped inner wall, forming a gap smaller than the spacing of the U-shaped inner wall to prevent the closed tubular cavity tissue from slipping out.

9. The multi-channel simultaneous closing tissue clip according to claim 1, characterized in that: A connecting mechanism is provided between each clamp body of the multi-channel simultaneously closed tissue clamp. The longitudinal spacing of the inner wall formed by the connecting mechanism is larger than the spacing of the U-shaped inner wall of each clamp body, which is used to accommodate the segmental expansion and recovery of the clamped tissue; the connecting mechanism of the multi-channel simultaneously closed tissue clamp fixes the multiple U-shaped double-arm clamp bodies together, and the lateral spacing of the multiple U-shaped double-arm clamp bodies is consistent, and the spacing between each U-shaped double-arm clamp body is 0.2-3 mm.

10. The multi-channel simultaneous closing tissue clip according to claim 1, characterized in that: The multiple simultaneously closed tissue clip conjoined body mechanism can also be provided with reinforcing ribs to improve the integrated strength; the regular spacing of the reinforcing ribs can be used for positioning when arranged in sequence front to back or laterally; the multiple simultaneously closed tissue clips have a regular appearance, which can realize the arrangement of more tissue clips in sequence front to back or laterally, and the contact surfaces between the tissue clips are flat, so that the thrust direction is consistent during synchronous movement without mutual interference.

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