CN118557248A - Multi-channel simultaneous closing tissue clamp - Google Patents

Abstract

The invention discloses a multi-channel simultaneous closing tissue clamp, relates to the field of medical instruments capable of being implanted into a human body, and particularly relates to a tissue clamp for closing vascular and biliary tract cavity tissues during surgery. The U-shaped double-arm clamp is provided with a plurality of U-shaped double-arm clamps, the U-shaped double-arm clamps are connected through a conjuncted mechanism, each U-shaped double-arm clamp is provided with an upper clamping arm and a lower clamping arm, the tail parts of the upper clamping arm and the lower clamping arm are connected, the head of the upper clamping arm and the head of the lower clamping arm are open, the upper clamping arm is provided with an inlet, the inlet is inclined from the head to the inner wall from the outside to the inside, and the opening direction of each U-shaped double-arm clamp is consistent. The inner wall between the upper clamping arm and the lower clamping arm is provided with convex teeth for enhancing the anti-skid performance, and the convex teeth of the multi-channel U-shaped double-arm clamp body are arranged in a staggered manner, and can be uniformly arranged.

Description

Multi-channel simultaneous closing tissue clamp

Technical Field

The invention discloses a multi-channel simultaneous closing tissue clamp, relates to the field of medical instruments capable of being implanted into a human body, and particularly relates to a tissue clamp for closing vascular and biliary tract cavity tissues during surgery.

Background

In the surgical operation, the lumen tissue such as blood vessels, bile ducts and the like in the body needs to be dissociated, and the lumen tissue needs to be closed before the dissociation so as to prevent blood or other body fluids from flowing out. The early practice is to compress the lumen tissue to be separated by using hemostat, and to separate the two sides of the lumen tissue at the middle part after ligating by using suture, which takes longer time and does not meet the requirements of the modern operation on rapidness and convenience.

Tissue clips employing polymeric materials have been widely used in recent years. The V-shaped tissue clamp is widely used in the surgical operation, the clamp body of the V-shaped tissue clamp is in an open state before the surgical operation, when the surgical operation is used, the two side protuberance mechanisms of the V-shaped clamp body are connected with the matched metal jaw grooves at the front end of the clamp applying instrument, when the lumen tissue to be clamped enters the opening of the V-shaped clamp body, the clamp applying instrument is clamped to enable the two arms of the V-shaped clamp body to press the lumen tissue, the hook and lock mechanism at the front end of the V-shaped clamp body is buckled, and after the clamp applying instrument is released, the V-shaped clamp body is pressed on the periphery of the lumen tissue so as to prevent blood or other body fluid from flowing out.

The thickness of the V-shaped tissue clamp body is generally 1-2 mm, in order to improve the safety and reliability of closing the lumen tissue, doctors often adopt a method of clamping a plurality of clamps for a plurality of times at the reserved end of the tissue, and the large clamp applying mechanical metal jaw and the mechanisms of the protuberances (generally 3-4 mm in height) on the two sides of the V-shaped tissue clamp body enable the plurality of V-shaped tissue clamps to be unable to approach, so that the V-shaped tissue clamp cannot be used when some lumen tissues with short stumps are closed, or the clamp is not tight and falls off due to mutual interference, so that the safety and reliability of the operation cannot be improved. Multiple clamping can obviously prolong the operation time, is unfavorable for the operation efficiency, and particularly increases the infection risk when multiple times of operation channels are accessed during endoscopic operation.

When a plurality of independent tissue clips are used for closing some lumen tissues (such as arteries) with pressure, when a first tissue clip close to a high-pressure end is impacted to be released or falls off, the later tissue clips cannot provide more and stronger closing performance, and the safety and reliability cannot be improved too much.

The tissue clamp for closing the lumen tissue needs to be stored in a human body for a long time after operation, the degradation period of the polymer material in the human body is long, a small part of biological materials are in 1-10 months, and most of biological materials are even longer than the normal life of the human body, so that a plurality of protuberance mechanisms of the irregular V-shaped tissue clamp are easy to cause friction and damage to peripheral tissues, and especially symptoms such as cough bleeding, internal bleeding and the like can occur after operation on the lung and the liver.

In addition, the hook and lock structure of the V-shaped tissue clip is required to penetrate the tissue completely to snap. In the endoscopic surgery, due to the view of the surgery or the angle of the operation of the instruments, part of the lumen tissue cannot or cannot be completely dissociated, and under the condition, doctors hardly find whether the V-shaped tissue clamp normally buckles or has a tissue interlayer in the cavity, and the phenomena of collapse and slipping of the hook lock mechanism of the tissue clamp during and after the surgery, especially the phenomena of collapse and slipping after the surgery, can greatly cause serious injury and even death of patients.

Under the conditions of large-scale operation or emergency in operation, doctors need to rapidly and continuously close the lumen tissues for multiple times, the existing continuous clip applier generally adopts preassembled V-shaped tissue clips, the V-shaped tissue clips in the continuous clip applier are stored for a long time in a semi-closed state, and the connecting parts of the V-shaped tissue clips can not open the clip openings when in use and are easy to break after use due to the stress change caused by long-term deformation. In addition, the irregular V-shaped tissue clamp body is not beneficial to regular arrangement and sequential pushing of more V-shaped tissue clamps, and can cause faults such as incomplete pushing, early falling, clamping stagnation and the like in use.

Disclosure of Invention

The invention aims to provide a multi-channel simultaneous closing tissue clamp aiming at the defects, and the multi-channel simultaneous closing tissue clamp has no protuberance mechanism in appearance, forms the functions of correlation, fixed interval and mutual enhancement of closing performance among the multi-channel tissue closing clamps, can be closed without completely freeing lumen tissues, can be matched with a special clamp applying instrument capable of providing the functions of clamping, observing, adjusting, detecting lumen size and the like, can realize the function of continuously applying more multi-channel tissue closing clamps, ensures the safety and the continuity of surgical operation, improves the operation efficiency, reduces the replacement instrument, reduces the puncture frequency of the instrument and the like.

A multi-channel simultaneous closing tissue clamp is realized by adopting the following technical scheme:

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 through a conjuncted mechanism. Each U-shaped double-arm clamp body is provided with an upper clamp arm and a lower clamp arm, the tail parts of the upper clamp arm and the lower clamp arm are connected, the head parts of the upper clamp arm and the lower clamp arm are open, the U-shaped double-arm clamp body is provided with an inlet, the inlet is inclined from the head part to the inner wall in a manner of being large outside and small inside, and the opening direction of each U-shaped double-arm clamp body is consistent. The inner wall between the upper clamping arm and the lower clamping arm is provided with convex teeth for enhancing the anti-skid performance, and the convex teeth of the multi-channel U-shaped double-arm clamp body are arranged in a staggered manner, and can be uniformly arranged.

A multi-channel simultaneous closing tissue clamp is a multi-channel U-shaped double-arm clamp conjuncted structure.

The multi-channel simultaneous closing tissue clamp is in the shape of a cube, a cuboid, a cylinder and an elliptic cylinder, and has no outward bulge and burr structures; all appearance surfaces are provided with round arc angles, so that the tissues are prevented from being punctured and damaged.

The conjuncted mechanism of the U-shaped double-arm clamp body of the multiple channels of simultaneous closed tissue clamps is flat, can also be sunken; the conjuncted mechanism and the inner wall are closed or penetrated.

The openings of the inner walls of the U-shaped double-arm clamp bodies for simultaneously closing the tissue clamp are in the same direction.

The upper clamping arms and the lower clamping arms of the U-shaped double-arm clamp body for simultaneously closing the tissue clamp are relatively parallel, certain intervals are arranged on the inner walls, and the intervals between the inner walls are 0.1-4 mm; each inner wall is provided with convex teeth for enhancing the anti-skid performance, and the convex teeth can be smooth; the convex teeth of the multi-channel U-shaped double-arm clamp body are arranged in a staggered manner, and can be uniformly arranged.

The tail parts of the U-shaped double-arm clamp bodies of the multi-channel simultaneous closed tissue clamp are connected, and structural stability is provided for the upper clamp arm and the lower clamp arm.

An inlet is arranged between an upper clamping arm and a lower clamping arm of the head part of the U-shaped double-arm clamping body for simultaneously closing the tissue clamp, is open, is inclined from the head part to the inner wall in a large and small way, and is used for guiding the luminal tissue to enter the U-shaped inner wall.

The U-shaped double-arm clamp body is provided with a plurality of barbs which are close to or exceed the central line of the U-shaped inner wall, form a gap smaller than the interval between the U-shaped inner walls and are used for preventing the closed lumen tissue from being pulled out.

And a conjuncted mechanism is arranged between each two clamp bodies of the multi-channel simultaneous closed tissue clamp, and the longitudinal spacing of the inner walls formed by the conjuncted mechanism is larger than the U-shaped inner wall spacing of each clamp body and is used for accommodating the expansion recovery of the sections of the clamped tissue.

A conjuncted mechanism of the multi-channel simultaneous closing tissue clamp enables a plurality of U-shaped double-arm clamp bodies to be fixedly connected into a whole, and the transverse spacing of the multi-channel U-shaped double-arm clamp bodies can be consistent or different. The distance between each two U-shaped arm clamps is 0.2-3 mm.

The multi-channel simultaneous closing tissue clamp body mechanism can be provided with reinforcing ribs, so that the integrated strength is improved; the regular spacing between the reinforcing ribs can be used for positioning in the front-back or transverse sequential arrangement.

A multi-channel simultaneous closing tissue clamp is composed of more models, and is distinguished according to the number of U-shaped double-arm clamps, the transverse distance between the U-shaped double-arm clamps, the size and the size difference of the inner wall of the U-shaped double-arm clamps, the thickness of the U-shaped double-arm clamps and other parameters.

A plurality of tissue clamps are closed simultaneously, the shape is regular, a plurality of tissue clamps can be sequentially arranged front and back or transversely, contact surfaces among the tissue clamps are smooth, the thrust directions are consistent during synchronous movement, and mutual interference is avoided.

A multi-channel simultaneous closing tissue clamp is made of high-molecular materials.

The multi-channel simultaneous closing tissue clamp has the beneficial effects that:

A multi-channel simultaneous closing tissue clamp can simultaneously close multiple channels at one lumen tissue to form a multi-channel compression closing line, clamp is not required to be applied for multiple times in an operation, particularly, repeated access of instruments to human body conveying and tissue clamping in a endoscopic operation is reduced, and the operation efficiency is greatly improved.

The multi-channel clamp body of the multi-channel simultaneous closing tissue clamp is parallel and simultaneously closed, provides stable and fixed intervals between the clamp bodies, does not need to consider the problems that single multi-channel clamping is mutually interfered and can not be applied, an included angle is formed, the clamp bodies are squeezed and separated, and the clamp bodies are mutually overlapped to cause fracture and the like, and improves the operation quality.

A conjuncted mechanism is arranged between the multi-channel clamp bodies of the multi-channel simultaneous closed tissue clamp, so that the multi-channel clamp bodies are mutually reinforced, tissue closing force is enhanced, the closing effect of 1+1 & gt2 is achieved, the surgical accidents caused by the fact that independent single multi-time tissue clamps are impacted and damaged one by one in the high-pressure cavity tissue use environment are prevented, and the surgical safety is improved.

The internal clearance formed by the conjuncted mechanism between the multiple clip bodies of the multiple simultaneous closed tissue clips is larger than the clearance between the U-shaped double arms of each clip body, and the ' sugar-gourd ' -shaped big diameter-small diameter-big diameter … … ' is formed in the axial direction of the tissue after the lumen tissue is closed, so that the axial anti-falling capacity is greatly improved.

The polymer material product mostly has structural memory performance, namely reverse restoring force is generated after the initial structural property is changed. Each clip body of the multi-channel simultaneous closing tissue clip is of a U-shaped double-arm structure with the tail part firmly connected, so that larger closing pressing force can be realized, and the direction of the material memory restoring force is consistent with the direction of the tissue closing force. However, when the common V-shaped tissue clamp is used, the rear end of the common V-shaped tissue clamp is required to be bent, and the direction of the material memory restoring force is opposite to the direction of the tissue closing force, so that the clamping failure conditions such as fracture, collapse and the like of the V-shaped tissue clamp are more easily caused.

The tail connection of the multi-channel simultaneous closing tissue clamp forms larger closing compression force, and the head lock hook is not arranged, so that the remote tissue does not need to be completely peeled off when the tissue clip is used, and the damage caused by the puncture of the lock hook is avoided. The front end of the V-shaped tissue clamp is provided with a lock hook structure, when the V-shaped tissue clamp is used, far-end tissues need to be completely stripped, and doctors generally adopt a blind clamp mode to apply the V-shaped tissue clamp in an operation environment which is not easy to completely strip, namely, the V-shaped tissue clamp is directly clamped by using the lock hook to carry the tissues, so that puncture injury can be caused; sometimes, the lock hooks cannot puncture tissues, and the tissues clamped between the lock hooks are easy to slip, so that clamping failure is caused; furthermore, after the operation, the tissue between the lock hooks is swollen or the V-shaped tissue clamp is separated after the swelling is eliminated, so that the operation needs to be carried out again for medical accidents such as bleeding, weeping and the like, and the life is seriously and even endangered.

The multi-channel simultaneous closing tissue chuck part is provided with an inlet which is large at the outside and small at the inside, which is favorable for flattening and closing the tissue of the guide lumen and improving the success rate of application. The minimum position of the leading-in port is provided with barbs smaller than the interval of the inner wall, and the height of the barbs exceeds the center line of the inner wall, so that the radial falling-off performance after closing can be effectively enhanced.

A plurality of convex teeth are arranged on the U-shaped inner wall of each clamp body of the multi-channel simultaneous closed tissue clamp, friction between the clamp body and tissues is enhanced, closing performance can be improved, and falling risks are reduced.

The U-shaped inner wall spacing of each clip body of the multi-channel simultaneous closing tissue clip can be the same or different. Different compression force segments are provided for tissues with special treatment requirements, and the compression force is reduced in the segments with larger intervals, so that the local blood supply is facilitated, and the tissue recovery capability is improved.

The multi-channel simultaneous closed tissue clamp has regular and round appearance, has no hump and burr characters, can prevent peripheral tissues from being damaged during and after operation, and reduces friction stimulation to the peripheral tissues after healing.

The multi-channel simultaneous closing tissue clamp has regular appearance, can form a plurality of orderly and transversely or longitudinally regular arrangement, and is beneficial to loading and conveying in special continuous hair appliances.

Drawings

The invention will be further described with reference to the accompanying drawings in which:

FIG. 1 is a perspective view of a multi-channel simultaneous closing tissue clip.

FIG. 2 is a schematic perspective view of an exemplary dual lane tissue clip with multiple lanes closing the tissue clip simultaneously.

FIG. 3 is a schematic side view of a multi-channel simultaneous closing tissue clip.

FIG. 4 is a schematic illustration of a forward clamping of a multi-pass simultaneous closing tissue clamp.

FIG. 5 is a schematic view of a multiple pass simultaneous closing tissue clip in a prone clip closing position.

FIG. 6 is a schematic illustration of a multiple simultaneous closing tissue clip in a sequential arrangement.

Fig. 7 is a schematic view of a V-shaped tissue clip configuration.

FIG. 8 is a schematic view of a V-shaped tissue clip being closed multiple times.

FIG. 9 is a schematic illustration of the operation of a multi-channel simultaneous closing tissue clip and a dedicated clip applier

The marks in the figure: 1. closing the tissue clips simultaneously in multiple channels; 2. a U-shaped double-arm clamp body; 3. two U-shaped double-arm clamp bodies; 38. a multi-channel U-shaped double-arm clamp body; 4. a conjunct mechanism; 5. an upper clamp arm; 6. a lower clamp arm; 7. an inlet; 8. the inner wall of the clamp body;

9. Convex teeth; 10 conjuncted inner walls; 11. a lumen tissue; 12. a barb; 13. a closed line; 14. a multi-pass closed line; 15. reinforcing ribs; 20. a V-shaped tissue clip; 21. connecting ridges; 30. a special clamping device; 31. a holder tube; 32. a clamp head; 33. pushing needles; 34. an elastic positioning sheet; 35. a clamping groove; 36. clamping teeth; 37. hook teeth.

Detailed Description

Referring to fig. 1-9, a multi-channel simultaneous closing tissue clamp 1is provided with U-shaped multi-channel double-arm clamps 2, 3 and 38, and the multi-channel double-arm clamps are connected through a conjuncted mechanism 4. Each U-shaped double-arm clamp body is provided with an upper clamp arm 5 and a lower clamp arm 6, the tail parts of the upper clamp arm 5 and the lower clamp arm 6 are connected, the head parts of the upper clamp arm 5 and the lower clamp arm 6 are open, an inlet 7 is arranged, the inlet 7 is inclined from the head part to the inner wall 8 of the clamp body in a manner of being large outside and small inside, and 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 convex teeth 9 for enhancing the anti-skid performance, and the convex teeth of the multi-double-arm clamp body are arranged in a staggered manner, or can be uniformly arranged.

A multi-channel simultaneous closing tissue clamp 1 is a structure with a plurality of double-arm clamp bodies 2, 3 and 38 connected together.

The multi-channel simultaneous closing tissue clamp 1 has the shapes of a cube, a cuboid, a cylinder and an elliptic cylinder, has no outward bulge and burr structures, has a round appearance surface, and prevents the tissues from being punctured and damaged.

The conjuncted mechanism 4 of the multi-channel double-arm clamp body of the multi-channel simultaneous closing tissue, 1 is flat, can be concave too; the joint mechanism 4 and the joint inner wall 10 are closed or penetrated.

The inlets 7 of the multi-channel double-arm clamp body for simultaneously closing the tissue clamp 1 are in the same direction.

The upper clamping arm 5 and the lower clamping arm 6 of the double-arm clamp for simultaneously closing the tissue clamp 1 are relatively parallel, the inner walls 8 of the clamp body are provided with a certain interval, and the interval between the inner walls is 0.1-4 mm; the inner wall of each clamp body is provided with convex teeth 9 for enhancing the anti-skid performance, and the convex teeth can also be smooth; the convex teeth 9 of the multi-channel double-arm clamp body are arranged in a staggered manner, and can be uniformly arranged.

The tail parts of the double-arm clamp bodies of the multi-channel simultaneous closed tissue clamp 1 are connected, so that the upper clamp arm 5 and the lower clamp arm 6 form a fixed structure.

The head of the double-arm clamp body for simultaneously closing the tissue clamp 1 is provided with an inlet 7 which is opened and is inclined from the head to the inner wall in a way of being larger at the outer side and smaller at the inner side, and is used for guiding the luminal tissue 11 to enter between the upper clamp arm 5 and the lower clamp arm 6.

A multi-channel double-arm clip body introduction port 7 for simultaneously closing a tissue clip 1 is provided with barbs 12 near or beyond the midline of the inner wall 8 of the clip body, forming a gap smaller than the spacing of the inner wall 8 of the clip body for preventing the closed luminal tissue from escaping outwardly.

A conjuncted mechanism 4 is arranged between each clip body of the multi-channel simultaneous closed tissue clip, and the longitudinal spacing of conjuncted inner walls 10 formed by conjuncted mechanisms is larger than the spacing of inner walls 8 of the clip bodies, so as to accommodate the expansion of the sections of the clipped lumen tissue 11.

The conjuncted mechanism 4 of the multi-channel simultaneous closing tissue clamp 1 enables the multi-channel double-arm clamp body to be fixedly connected into a whole, and the transverse spacing of the multi-channel double-arm clamp body can be consistent or different. The distance between the two arms is 0.2-3 mm.

The conjuncted mechanism 4 of the multi-channel simultaneous closing tissue clamp 1 can also be provided with a reinforcing rib 15, so that the integrated strength is improved; regular spacing of the ribs 15 may be used for alignment purposes when aligned in tandem or in a transverse direction.

A multi-channel simultaneous closing tissue clamp 1 is composed of a plurality of models and is distinguished according to the number of double-arm clamps, the height and depth of the inner wall of the clamps, the transverse width of a conjunct mechanism and other parameters.

The multi-channel simultaneous closing tissue clamp 1 has a regular shape, can realize sequential arrangement of more tissue clamps front and back or transversely, has smooth contact surfaces between the tissue clamps, ensures that the thrust directions are consistent during synchronous movement, and does not generate mutual interference.

A multi-channel simultaneous closing tissue clamp is made of high-molecular materials.

A multi-channel simultaneous closing tissue clamp is at least provided with 2U-shaped double-arm clamp bodies.

When the multi-channel simultaneous closing tissue clamp is used for surgical operation, the special clamp applying device 30 is matched, and the special clamp applying device 30 is provided with a clamp seat tube 31, a clamp head 32 and a push pin 33. The multi-channel simultaneous closing tissue clamp 1 is arranged in the clamping seat tube 31 in an adaptive mode, the tube wall of the clamping seat tube 31 is provided with an elastic locating piece 34 extending inwards, and the reinforcing ribs 15 of the conjuncted mechanism 4 of the multi-channel simultaneous closing tissue clamp 1 are pressed, so that the multi-channel simultaneous closing tissue clamp 1 is fixedly arranged in the front end face of the clamping seat tube in a parallel and level mode in sequence, and the multi-channel simultaneous closing tissue clamp is limited to only advance and not retract. The front end of the holder tube 31 is provided with a semi-open clamping groove 35, clamping teeth 36 are arranged on two sides of the clamping groove 35, and the front end is provided with hook teeth 37. The clamp head 32 is rotatably and movably pivoted at the front end of the holder tube 31, and the clamp head 32 is rotatably and movably fitted in the clamp groove 35. The push pins 33 are arranged inside the holder tube 31, and the front ends of the push pins are propped against the rear ends of the multiple lines of the closed tissue clips 1 at the same time. Each time the push pin 33 is actuated, the distance of pushing is equal to the length of the multiple simultaneous closing tissue clips 1. During operation, the lumen tissue 11 to be closed enters the jaw, the clamp head 32 is rotated to close, the lumen tissue 11 is flattened (if the clamp head cannot fully cover the lumen tissue to be closed, the currently selected multiple simultaneous closing tissue clamps 1 are not suitable in model and are required to be replaced in larger model), the clamp teeth 36 and the hook teeth 37 limit and flatten the lumen tissue, the push needle 33 works once at this time, the multiple simultaneous closing tissue clamps 1 push up the elastic locating piece 34, the whole array is advanced by one station, and the first multiple simultaneous closing tissue clamps 1 can press and close the lumen tissue through the introduction port 7. After releasing the binding clip 32, other surgical actions may be performed, including closing multiple luminal tissues using multiple sequential simultaneous closing tissue clips 1.

Claims (10)

1. The utility model provides a multichannel closed tissue clamp simultaneously, its characterized in that is equipped with multichannel U type both arms clamp, connects through conjuncted mechanism between the multichannel U type both arms clamp, and every U type both arms clamp is equipped with arm lock, lower arm lock, goes up arm lock and lower arm lock afterbody and is connected, goes up arm lock and lower arm lock head opening to be equipped with the introduction port, and the introduction port is outside big inside small slope from head to inner wall, and the opening direction of every U type both arms clamp is unanimous.

2. The multi-channel simultaneous closing tissue clamp according to claim 1, wherein the inner wall between the upper clamp arm and the lower clamp arm is provided with raised teeth for enhancing the anti-skid performance, and the raised teeth of the multi-channel U-shaped double-arm clamp body are arranged in a staggered manner or in a consistent manner.

3. The multi-channel simultaneous closing tissue clamp according to claim 1, wherein the multi-channel simultaneous closing tissue clamp is of a multi-channel U-shaped double-arm clamp body conjuncted structure, and the multi-channel simultaneous closing tissue clamp is provided with at least 2 channels of U-shaped double-arm clamps.

4. The multi-channel simultaneous closing tissue clip of claim 1 wherein the multi-channel simultaneous closing tissue clip has the shape of a cube, a cuboid, a cylinder and an elliptic cylinder without outward hump and burr structures; all appearance surfaces are provided with round arc angles, so that the tissues are prevented from being punctured and damaged.

5. The multi-channel simultaneous closing tissue clamp of claim 1 wherein the conjunct mechanism of the multi-channel U-shaped double arm clamp body of the multi-channel simultaneous closing tissue clamp is either flat or concave; the conjuncted mechanism and the inner wall are closed or penetrated.

6. The multi-channel simultaneous closing tissue clip of claim 1 wherein the openings in the inner walls of the multi-channel U-shaped dual arm clip body of the multi-channel simultaneous closing tissue clip are co-directional; the upper clamping arms and the lower clamping arms of the U-shaped double-arm clamp body for simultaneously closing the tissue clamp are relatively parallel, certain intervals are arranged on the inner walls, and the intervals between the inner walls are 0.1-4 mm; each inner wall is provided with convex teeth for enhancing the anti-skid performance, and the convex teeth can be smooth; the convex teeth of the multi-channel U-shaped double-arm clamp body are arranged in a staggered manner, and can be uniformly arranged.

7. The multi-channel simultaneous closing tissue clamp according to claim 1, wherein 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 being open and inclined from the head to the inner wall to be larger at the outside and smaller at the inside for guiding luminal tissue into the U-shaped inner wall.

8. The multi-channel simultaneous closing tissue clamp according to claim 1, wherein the inlet of the U-shaped double-arm clamp body of the multi-channel simultaneous closing tissue clamp is provided with barbs near or exceeding the central line of the U-shaped inner wall, forming a gap smaller than the interval between the U-shaped inner walls, for preventing the closed lumen tissue from being pulled out.

9. The multi-channel simultaneous closing tissue clip according to claim 1, wherein a conjunct mechanism is arranged between each channel of clip body of the multi-channel simultaneous closing tissue clip, and the longitudinal spacing of inner walls formed by the conjunct mechanism is larger than the U-shaped inner wall spacing of each channel of clip body, so as to accommodate expansion recovery of the section of the clipped tissue; the conjuncted mechanism of the closed tissue clamp of multichannel simultaneously makes multichannel U type both arms clamp body fixed connection in an organic whole, and the horizontal interval of multichannel U type both arms clamp body can be unanimous, or has the difference, and the interval between every channel U type both arms clamp body is 0.2-3 millimeters.

10. The multi-channel simultaneous closing tissue clamp according to claim 1, wherein the multi-channel simultaneous closing tissue clamp conjunct mechanism is further provided with a reinforcing rib to improve the integrated strength; regular spacing of the reinforcing ribs can be used for positioning when the reinforcing ribs are arranged in sequence in the front-back direction or the transverse direction; the multiple tissue clips are closed simultaneously, the shape is regular, more tissue clips can be orderly arranged front and back or transversely, contact surfaces among the tissue clips are smooth, the thrust directions are consistent during synchronous movement, and mutual interference is avoided.