Tissue closure clip

Abstract

The tissue closing clamp comprises a first clamping arm and a second clamping arm which are oppositely arranged, a U-shaped elastic clamp is connected between the first clamping arm and the second clamping arm, the first clamping arm and the second clamping arm are located in the U-shaped elastic clamp, and the first clamping arm and the second clamping arm abut against each other under the action of the U-shaped elastic clamp. And loading mechanisms are arranged on the first clamping arm and the second clamping arm. The invention aims to provide the tissue closing clamp which is uniform in closing, good in closing performance, safe and reliable in loading and small in conveying size.

Description

Technical Field

[0001] The present invention relates to the field of medical instruments, and in particular to a clamp device for clamping or blocking tissues. Background Art

[0002] In clinical practice, it is often necessary to use clips to clamp or block tissues, such as using clips to close blood vessel tissues, valve tissues, atria, left atrial appendages, etc. In this process, a special delivery device is required to deliver the closure clip into the human body and open it to capture the target tissue, so that the target tissue is clamped in the closure clip to complete the closure.

[0003] The closing clamps in the prior art have defects such as uneven closing, poor sealing performance, unreliable loading, and large conveying volume. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a tissue closing clamp with uniform closing, good closing performance, safe and reliable loading and small conveying volume.

[0005] The tissue closing clamp of the present invention comprises a first clamp arm and a second clamp arm arranged opposite to each other, a U-shaped elastic clamp is connected between the first clamp arm and the second clamp arm, the first clamp arm and the second clamp arm are located inside the U-shaped elastic clamp, the first clamp arm and the second clamp arm abut against each other under the action of the U-shaped elastic clamp, and a loading mechanism is provided on both the first clamp arm and the second clamp arm.

[0006] The tissue closing clip of the present invention, wherein the U-shaped elastic clip includes a first elastic arm and a second elastic arm arranged opposite to each other and a connecting portion connecting the first elastic arm and the second elastic arm, the arrangement direction of the first elastic arm and the second elastic arm is the same as the arrangement direction of the first clamp arm and the second clamp arm, the proximal ends of the first elastic arm and the second elastic arm are connected by the connecting portion, the inner side of the distal end of the first elastic arm is connected to the distal end of the first clamp arm, the proximal end of the first clamp arm extends toward the connecting portion, the inner side of the distal end of the second elastic arm is connected to the distal end of the second clamp arm, and the proximal end of the second clamp arm extends toward the connecting portion.

[0007] The tissue closing clip of the present invention, wherein a first cavity is formed between the first clamp arm and the first elastic arm, and a second cavity is formed between the second clamp arm and the second elastic arm.

[0008] The tissue closing clip of the present invention, wherein the distal end of the first elastic arm and the distal end of the first clamp arm are combined into one to form a first guide end, the thickness of the first guide end gradually decreases along the direction from near to far, the distal end of the second elastic arm and the distal end of the second clamp arm are combined into one to form a second guide end, the thickness of the second guide end gradually decreases along the direction from near to far.

[0009] The tissue closing clip of the present invention, wherein the loading mechanism on the first clip arm is a first loading hole, and the loading mechanism on the second clip arm is a second loading hole.

[0010] The tissue closing clamp of the present invention, wherein the loading mechanism on the first clamp arm comprises a first loading column, the first loading column is connected to the first clamp arm, and the first loading column is provided with a first loading hole, and the loading mechanism on the second clamp arm comprises a second loading column, the second loading column is connected to the second clamp arm, and the second loading column is provided with a second loading hole.

[0011] The tissue closing clamp of the present invention, wherein one end of the first loading column is connected to the first clamp arm, the first elastic arm is provided with a first through hole for the first loading column to pass through, the other end of the first loading column extends to the outside of the first elastic arm after passing through the first through hole, the first loading column and the first through hole are clearance fit, the other end of the first loading column is provided with a first loading hole, one end of the second loading column is connected to the second clamp arm, the second elastic arm is provided with a second through hole for the second loading column to pass through, the other end of the second loading column extends to the outside of the second elastic arm after passing through the second through hole, the second loading column and the second through hole are clearance fit, and the other end of the second loading column is provided with a second loading hole.

[0012] The tissue closing clamp of the present invention, wherein the loading mechanism on the first clamp arm is a first loading arm, one end of the first loading arm is connected to the first clamp arm, the other end of the first loading arm is connected to the first clamp arm after bypassing the first elastic arm, and there is a gap between the first loading arm and the first elastic arm, and the loading mechanism on the second clamp arm is a second loading arm, one end of the second loading arm is connected to the second clamp arm, the other end of the second loading arm is connected to the second clamp arm after bypassing the second elastic arm, and there is a gap between the second loading arm and the second elastic arm.

[0013] The tissue closing clamp of the present invention, wherein the first loading arm includes two first loading straight arms and a first loading curved arm, one end of the two first loading straight arms are connected to the first clamp arm, the other ends of the two first loading straight arms extend toward the first elastic arm, the two first loading straight arms are respectively located on opposite sides of the first elastic arm, the first loading curved arm is located on the outside of the first elastic arm, the two ends of the first loading curved arm are respectively connected to the other ends of the two first loading straight arms, and there is a gap between the first loading curved arm and the two first loading straight arms and the first elastic arm; the second loading arm includes two second loading straight arms and a second loading curved arm, one end of the two second loading straight arms are connected to the second clamp arm, the other ends of the two second loading straight arms extend toward the second elastic arm, the two second loading straight arms are respectively located on opposite sides of the second elastic arm, the second loading curved arm is located on the outside of the second elastic arm, the two ends of the second loading curved arm are respectively connected to the other ends of the two second loading straight arms, and there is a gap between the second loading curved arm and the two second loading straight arms and the second elastic arm.

[0014] The tissue closing clip of the present invention, wherein the first elastic arm has first grooves on opposite sides for the first loading arm to pass through, and the second elastic arm has second grooves on opposite sides for the second loading arm to pass through.

[0015] The difference between the tissue closing clamp of the present invention and the prior art is that the first clamp arm and the second clamp arm of the tissue closing clamp of the present invention are used to clamp tissue, and the U-shaped elastic clamp provides clamping force for the first clamp arm and the second clamp arm. In the initial state, the first clamp arm and the second clamp arm abut each other under the action of the U-shaped elastic clamp. When in use, the loading mechanism on the first clamp arm and the second clamp arm is connected to the conveying device to complete the loading of the closing clamp, and then the closing clamp is conveyed to the tissue to be closed inside the human body by the conveying device, and then the first clamp arm and the second clamp arm are separated from each other by the conveying device, that is, the closing clamp is opened, and then the tissue to be closed is located between the first clamp arm and the second clamp arm, and then the first clamp arm and the second clamp arm are brought close to each other by the conveying device, that is, the closing clamp is closed until the tissue to be closed is clamped, thereby completing the closure of the tissue, and then the closing clamp is separated from the conveying device, so that the closing clamp remains in the human body, and the conveying device is withdrawn from the human body. It can be seen that the present invention can provide a tissue closing clamp with uniform closure, good sealing performance, safe and reliable loading, and small conveying volume.

[0016] The present invention will be further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view of the first embodiment of the tissue closure clip of the present invention;

[0018] Figure 2A three-dimensional diagram of a first embodiment of a tissue closure clip of the present invention;

[0019] Figure 3 It is a front view of the second embodiment of the tissue closing clip of the present invention;

[0020] Figure 4 It is a stereoscopic diagram of the second embodiment of the tissue closing clip of the present invention;

[0021] Figure 5 This is a front view of the third embodiment of the tissue closure clip of the present invention;

[0022] Figure 6 It is a three-dimensional diagram of the third embodiment of the tissue closing clip of the present invention;

[0023] Figure 7 It is a stereoscopic view of the fourth embodiment of the tissue closure clip of the present invention. DETAILED DESCRIPTION

[0024] Before introducing the specific embodiments of the present invention, the directions represented by "far" and "near" mentioned in the present invention are explained first, that is, relative to the surgical operator (such as a doctor), the position close to the surgical operator is near, and the position far away from the surgical operator is far.

[0025] Embodiment 1

[0026] like Figure 1 , 2 As shown, it is a schematic diagram of the tissue closing clip of the present invention in an initial state, that is, a schematic diagram without the action of external force.

[0027] The tissue closing clamp of the present invention comprises a first clamp arm 2 and a second clamp arm 8 which are arranged opposite to each other. The first clamp arm 2 and the second clamp arm 8 are arranged in a direction from near to far, and the first clamp arm 2 is parallel to the second clamp arm 8. A U-shaped elastic clamp 4 is connected between the first clamp arm 2 and the second clamp arm 8. The first clamp arm 2 and the second clamp arm 8 are located inside the U-shaped elastic clamp 4. The first clamp arm 2 and the second clamp arm 8 abut against each other under the action of the U-shaped elastic clamp 4, that is, the U-shaped elastic clamp 4 provides a clamping force for the first clamp arm 2 and the second clamp arm 8 to approach each other. Therefore, when the first clamp arm 2 and the second clamp arm 8 do not clamp tissue, the first clamp arm 2 and the second clamp arm 8 abut against each other.

[0028] The first clamp arm 2 and the second clamp arm 8 are both provided with a loading mechanism, and the first clamp arm 2 and the second clamp arm 8 can be connected to the conveying device through their respective loading mechanisms, that is, the first clamp arm 2 and the second clamp arm 8 are loaded on the conveying device, and then the conveying device can convey the entire closed clamp into the human body, and can control the first clamp arm 2 and the second clamp arm 8 to approach each other (that is, the closed clamp performs a closing action) or move away from each other (that is, the closed clamp performs an opening action).

[0029] The tissue closing clip of the present invention, wherein the U-shaped elastic clip 4 includes a first elastic arm 401 and a second elastic arm 403 arranged opposite to each other and a connecting portion 402 connecting the first elastic arm 401 and the second elastic arm 403, the arrangement direction of the first elastic arm 401 and the second elastic arm 403 is the same as the arrangement direction of the first clamp arm 2 and the second clamp arm 8, that is, the first elastic arm 401 and the second elastic arm 403 are arranged in a direction from near to far, the proximal ends of the first elastic arm 401 and the second elastic arm 403 are connected by the connecting portion 402, the inner side of the distal end of the first elastic arm 401 is connected to the distal end of the first clamp arm 2, the proximal end of the first clamp arm 2 extends toward the connecting portion 402, and there is a gap between the proximal end of the first clamp arm 2 and the connecting portion 402, the inner side of the distal end of the second elastic arm 403 is connected to the distal end of the second clamp arm 8, the proximal end of the second clamp arm 8 extends toward the connecting portion 402, and there is a gap between the proximal end of the second clamp arm 8 and the connecting portion 402.

[0030] The U-shaped elastic clip 4 and the two clip arms are located in the same plane, which can reduce the volume of the entire closing clip and facilitate the delivery device to deliver the closing clip into the human body.

[0031] The connecting portion 402 is in an arc shape and is made of an elastic material. The connecting portion 402 can provide a clamping force for the first elastic arm 401 and the second elastic arm 403 to approach each other. In the initial state, under the elastic force of the connecting portion 402, the first elastic arm 401 and the second elastic arm 403 remain in a state of approaching each other. At this time, when the first elastic arm 401 and the second elastic arm 403 are moved away from each other under the action of an external force, the external force is removed, and the first elastic arm 401 and the second elastic arm 403 move toward each other until they return to the initial state. Based on this, the first elastic arm 401 and the second elastic arm 403 can provide a clamping force for the first clamp arm 2 and the second clamp arm 8 to approach each other, and in the absence of an external force, the first clamp arm 2 and the second clamp arm 8 can abut against each other.

[0032] The thickness of the first clamp arm 2 and the second clamp arm 8 gradually decreases from far to near, so that the clamping force applied by the U-shaped elastic clamp 4 on the first clamp arm 2 and the second clamp arm 8 can be more uniform, that is, the clamping force is more uniform in the direction from far to near of the first clamp arm 2 / the second clamp arm 8, thereby improving the closing performance of the closing clamp. The thickness of the first clamp arm 2 and the second clamp arm 8 refers to the length along the opening / closing direction of the closing clamp, that is, the greater the length in the opening / closing direction of the closing clamp, the greater the thickness, and vice versa.

[0033] In the tissue closing clip of the present invention, a first cavity 3 is formed between the first clamp arm 2 and the first elastic arm 401, and a second cavity 7 is formed between the second clamp arm 8 and the second elastic arm 403. In the initial state, the first elastic arm 401 is gradually inclined toward the first clamp arm 2 from near to far, and the second elastic arm 403 is gradually inclined toward the second clamp arm 8 from near to far. Since the first elastic arm 401 and the second elastic arm 403 are both arranged obliquely, and the thickness of the first clamp arm 2 and the second clamp arm 8 is gradually reduced from far to near, the space of the first cavity 3 and the second cavity 7 is gradually increased from far to near.

[0034] In order to facilitate the implantation of the closing clip into the human body, the closing clip is designed as follows: the distal end of the first elastic arm 401 and the distal end of the first clamp arm 2 are combined into a first guide end 1, and the specific setting method is that the outer side surface of the first guide end 1 is designed to be a concave arc surface, and the arc surface forms a convex arc surface transition with the outer side surface of the first elastic arm 401, and the thickness of the first guide end 1 gradually decreases from near to far; the distal end of the second elastic arm 403 and the distal end of the second clamp arm 8 are combined into a second guide end 9, and the specific setting method is that the outer side surface of the second guide end 9 is designed to be a concave arc surface, and the arc surface forms a convex arc surface transition with the outer side surface of the second elastic arm 403, and the thickness of the second guide end 9 gradually decreases from near to far. The thickness of the first guide end 1 and the second guide end 9 refers to the length along the opening / closing direction of the closing clip, that is, the greater the length in the opening / closing direction of the closing clip, the greater the thickness, and vice versa.

[0035] In the initial state, the first guide end 1 and the second guide end 9 together form a cone-like structure, that is, along the direction from near to far, the common thickness of the first guide end 1 and the second guide end 9 gradually decreases, which is conducive to delivering the closing clip into the human body, thereby improving the convenience of closing clip input.

[0036] The tissue closing clamp of the present invention, wherein the loading mechanism on the first clamp arm 2 is the first loading hole 5, and the loading mechanism on the second clamp arm 8 is the second loading hole 6. The closing clamp is loaded on the conveying device through the first loading hole 5 and the second loading hole 6, the first loading hole 5 is arranged slightly close to the proximal end of the first clamp arm 2, and the second loading hole 6 is arranged slightly close to the proximal end of the second clamp arm 8, so that when the conveying device closes or opens the closing clamp, the first clamp arm 2 and the second clamp arm 8 can be basically parallel to each other during the closing or opening process, that is, the first clamp arm 2 and the second clamp arm 8 are basically parallel to each other during the process of approaching or moving away from each other. This is more conducive to the first clamp arm 2 and the second clamp arm 8 clamping the target tissue, and the clamping force is more uniform, thereby improving the sealing performance of the closing clamp.

[0037] The first clamp arm 2 and the second clamp arm 8 of the tissue closing clamp of the present invention are used to clamp tissue, and the U-shaped elastic clamp 4 provides clamping force for the first clamp arm 2 and the second clamp arm 8. In the initial state, the first clamp arm 2 and the second clamp arm 8 abut against each other under the action of the U-shaped elastic clamp 4. When in use, the loading mechanism (the loading mechanism of this embodiment is a loading hole) on the first clamp arm 2 and the second clamp arm 8 is connected to the conveying device to complete the loading of the closing clamp, and then the closing clamp is conveyed to the tissue to be closed inside the human body by the conveying device, and then the first clamp arm 2 and the second clamp arm 8 are separated from each other by the conveying device, that is, the closing clamp is opened, and then the tissue to be closed is located between the first clamp arm 2 and the second clamp arm 8, and then the first clamp arm 2 and the second clamp arm 8 are brought close to each other by the conveying device, that is, the closing clamp is closed until the tissue to be closed is clamped, thereby completing the closure of the tissue, and then the closing clamp is separated from the conveying device, the closing clamp is left in the human body, and the conveying device is withdrawn from the human body. It can be seen that the present invention can provide a tissue closing clamp with uniform closure, good sealing performance, safe and reliable loading, and small conveying volume.

[0038] The loading mechanism in the present invention is used to cooperate with the conveying device to convey the closing clip and control the opening and closing of the closing clip. Compared with the prior art, the present invention can bring the following clinical benefits: the closing ability of the closing clip is significantly improved, the closing uniformity is better, and the sealing performance is improved; the loading mechanism can also reduce the conveying volume, increase the passability, and improve the surgical effect and surgical efficiency; the loading mechanism improves the safety and reliability of loading.

[0039] Embodiment 2

[0040] like Figure 3 , 4 As shown, the difference between this embodiment and the first embodiment lies in the structure of the loading mechanism. In this embodiment, the specific structure of the loading mechanism is as follows.

[0041] The loading mechanism on the first clamping arm 2 includes a first loading column 10, which is connected to the first clamping arm 2 and has a first loading hole 12. The loading mechanism on the second clamping arm 8 includes a second loading column 11, which is connected to the second clamping arm 8 and has a second loading hole 14.

[0042] One end of the first loading column 10 is connected to the first clamping arm 2, and the first elastic arm 401 is provided with a first through hole 13 for the first loading column 10 to pass through. The other end of the first loading column 10 passes through the first through hole 13 and extends to the outside of the first elastic arm 401. There is a clearance fit between the first loading column 10 and the first through hole 13. The other end of the first loading column 10 is provided with a first loading hole 12, and the first loading hole 12 is located on the outside of the first elastic arm 401.

[0043] One end of the second loading column 11 is connected to the second clamping arm 8, and the second elastic arm 403 is provided with a second through hole 15 for the second loading column 11 to pass through. The other end of the second loading column 11 passes through the second through hole 15 and extends to the outside of the second elastic arm 403. There is a clearance fit between the second loading column 11 and the second through hole 15. The other end of the second loading column 11 is provided with a second loading hole 14, and the second loading hole 14 is located on the outside of the second elastic arm 403.

[0044] In this embodiment, the closure clip is loaded onto the conveying device through the first loading hole 12 on the first loading column 10 and the second loading hole 14 on the second loading column 11 .

[0045] In this embodiment, the first loading column 10 is connected to a position slightly close to the proximal end of the first clamp arm 2, and the second loading column 11 is connected to a position slightly close to the proximal end of the second clamp arm 8. In this way, when the conveying device is closing or opening the closing clamp, the first clamp arm 2 and the second clamp arm 8 can be kept substantially parallel to each other during the closing or opening process, that is, the first clamp arm 2 and the second clamp arm 8 are kept substantially parallel to each other during the process of approaching or moving away from each other. This is more conducive to the first clamp arm 2 and the second clamp arm 8 clamping the target tissue, and the clamping force is more uniform, thereby improving the sealing performance of the closing clamp.

[0046] In this embodiment, there is a clearance fit between the first loading column 10 and the first through hole 13, and its purpose is: when the first clamp arm 2 and the second clamp arm 8 clamp the tissue, the distance between the first elastic arm 401 and the first clamp arm 2 will become smaller (that is, the first cavity 3 becomes smaller) relative to the initial state, that is, during the opening process of the closing clamp, relative movement will occur between the first elastic arm 401 and the first clamp arm 2. In order not to hinder the relative movement of the first elastic arm 401 and the first clamp arm 2, the clearance fit is set between the first loading column 10 and the first through hole 13. In this way, when the first elastic arm 401 and the first clamp arm 2 move relative to each other, the first loading column 10 will move along the first through hole 13 to the outside or inside of the first elastic arm 401, thereby achieving the purpose of not hindering the relative movement between the first elastic arm 401 and the first clamp arm 2. Similarly, there is also a clearance fit between the second loading column 11 and the second through hole 15, and its purpose is also to not hinder the relative movement between the second elastic arm 403 and the second clamp arm 8 during the opening process of the closing clamp.

[0047] Embodiment 3

[0048] like Figure 5 , 6 As shown, the difference between this embodiment and the first embodiment lies in the structure of the loading mechanism. In this embodiment, the specific structure of the loading mechanism is as follows.

[0049] The loading mechanism on the first clamp arm 2 is the first loading arm 17, one end of which is connected to the first clamp arm 2, and the other end of which bypasses the first elastic arm 401 and is connected to the first clamp arm 2. At this time, the first elastic arm 401 is inserted into the space surrounded by the first loading arm 17 and the first clamp arm 2, and there is a gap between the first loading arm 17 and the first elastic arm 401. The loading mechanism on the second clamp arm 8 is the second loading arm 18, one end of which is connected to the second clamp arm 8, and the other end of which bypasses the second elastic arm 403 and is connected to the second clamp arm 8. At this time, the second elastic arm 403 is inserted into the space surrounded by the second loading arm 18 and the second clamp arm 8, and there is a gap between the second loading arm 18 and the second elastic arm 403.

[0050] Since there is a gap between the first loading arm 17 and the outer side of the first elastic arm 401, and there is also a gap between the second loading arm 18 and the outer side of the second elastic arm 403, the closing clamp can be loaded on the conveying device through the first loading arm 17 part outside the first elastic arm 401 and the second loading arm 18 part outside the second elastic arm 403.

[0051] In this embodiment, the two ends of the first loading arm 17 are connected to a position slightly close to the proximal end of the first clamp arm 2, and the two ends of the second loading arm 18 are connected to a position slightly close to the proximal end of the second clamp arm 8. In this way, when the conveying device is closing or opening the closing clamp, the first clamp arm 2 and the second clamp arm 8 can be kept substantially parallel to each other during the closing or opening process, that is, the first clamp arm 2 and the second clamp arm 8 are kept substantially parallel to each other during the process of approaching or moving away from each other. This is more conducive to the first clamp arm 2 and the second clamp arm 8 clamping the target tissue, and the clamping force is more uniform, thereby improving the sealing performance of the closing clamp.

[0052] In this embodiment, there is a gap between the first loading arm 17 and the first elastic arm 401. The purpose is that when the first clamp arm 2 and the second clamp arm 8 clamp the tissue, the distance between the first elastic arm 401 and the first clamp arm 2 will become smaller (that is, the first cavity 3 becomes smaller) compared to the initial state. In other words, during the opening process of the closing clamp, relative movement will occur between the first elastic arm 401 and the first clamp arm 2. In order not to hinder the relative movement of the first elastic arm 401 and the first clamp arm 2, a gap is designed between the first loading arm 17 and the first elastic arm 401. In this way, when relative movement occurs between the first elastic arm 401 and the first clamp arm 2, the first elastic arm 401 will move closer to or away from the first clamp arm 2 in the space surrounded by the first loading arm 17 and the first clamp arm 2, but in this process, the first elastic arm 401 will not come into contact with the first loading arm 17, that is, the first loading arm 17 will not hinder the relative movement between the first elastic arm 401 and the first clamp arm 2. Similarly, there is a gap between the second loading arm 18 and the second elastic arm 403 , and the purpose is also to prevent the second loading arm 18 from hindering the relative movement between the second elastic arm 403 and the second clamping arm 8 .

[0053] In this embodiment, the first loading arm 17 includes two first loading straight arms 171 and one first loading curved arm 172, one end of the two first loading straight arms 171 are connected to the first clamping arm 2, the other ends of the two first loading straight arms 171 extend toward the first elastic arm 401, the two first loading straight arms 171 are respectively located on opposite sides of the first elastic arm 401, the first loading curved arm 172 is located outside the first elastic arm 401, the two ends of the first loading curved arm 172 are respectively connected to the other ends of the two first loading straight arms 171, and there is a gap between the first loading curved arm 172 and the two first loading straight arms 171 and the first elastic arm 401. It can be seen that the first loading arm 17 is U-shaped as a whole.

[0054] The structure of the second loading arm 18 is the same as that of the first loading arm 17, that is, the second loading arm 18 includes two second loading straight arms 181 and one second loading curved arm 182, one end of the two second loading straight arms 181 is connected to the second clamping arm 8, the other ends of the two second loading straight arms 181 extend toward the second elastic arm 403, the two second loading straight arms 181 are respectively located on opposite sides of the second elastic arm 403, the second loading curved arm 182 is located outside the second elastic arm 403, the two ends of the second loading curved arm 182 are respectively connected to the other ends of the two second loading straight arms 181, and there is a gap between the second loading curved arm 182 and the two second loading straight arms 181 and the second elastic arm 403. It can be seen that the second loading arm 18 is also U-shaped as a whole.

[0055] The closure clip is loaded onto the conveying device by the first loading crank 172 and the second loading crank 182 .

[0056] In order to further reduce the volume of the closed clamp, both ends of the first loading arm 17 are connected to the side of the first clamp arm 2 facing the first elastic arm 401, and the first elastic arm 401 has two opposite sides provided with first grooves 16 for the first loading arm 17 to pass through, specifically, the first elastic arm 401 has two opposite sides provided with first grooves 16; both ends of the second loading arm 18 are connected to the side of the second clamp arm 8 facing the second elastic arm 403, and the second elastic arm 403 has two opposite sides provided with second grooves 19 for the second loading arm 18 to pass through, specifically, the second elastic arm 403 has two opposite sides provided with second grooves 19. There is a gap between the first loading arm 17 and the first groove 16, so that the purpose of the first loading arm 17 not hindering the relative movement between the first elastic arm 401 and the first clamp arm 2 can be met. Similarly, there is a gap between the second loading arm 18 and the second groove 19, so that the purpose of the second loading arm 18 not hindering the relative movement between the second elastic arm 403 and the second clamp arm 8 can be met.

[0057] For each first groove 16 , a portion of the first loading straight arm 171 may be located in the first groove 16 , a portion of the first loading curved arm 172 may be located in the first groove 16 , or the connection between the first loading straight arm 171 and the first loading curved arm 172 may be located in the first groove 16 .

[0058] For each second groove 19 , a portion of the second loading straight arm 181 may be located in the second groove 19 , a portion of the second loading curved arm 182 may be located in the second groove 19 , or the connection between the second loading straight arm 181 and the second loading curved arm 182 may be located in the second groove 19 .

[0059] Embodiment 4

[0060] like Figure 7 As shown, on the basis of the first, second and third embodiments, the tissue closing clamp further includes a sleeve 101, which is sleeved on the tissue closing clamp. The sleeve 101 sequentially covers the first elastic arm 401 and the first clamp arm 2, the connecting portion 402, the second elastic arm 403 and the second clamp arm 8. In this embodiment, the sleeve 101 can be made of a biocompatible material.

[0061] It should be noted that the directions or positional relationships indicated by terms such as “center”, “up”, “down”, “front”, “back”, “left”, “right”, and “middle” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0062] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] The embodiments described above are merely descriptions of preferred implementation modes of the present invention and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A tissue closure clip, characterized in that: It includes a first clamp arm and a second clamp arm arranged opposite to each other, a U-shaped elastic clamp is connected between the first clamp arm and the second clamp arm, the first clamp arm and the second clamp arm are located in the U-shaped elastic clamp, the first clamp arm and the second clamp arm abut against each other under the action of the U-shaped elastic clamp, and a loading mechanism is provided on the first clamp arm and the second clamp arm.

2. The tissue closure clip according to claim 1, characterized in that: The U-shaped elastic clip includes a first elastic arm and a second elastic arm arranged opposite to each other and a connecting portion connecting the first elastic arm and the second elastic arm, the arrangement direction of the first elastic arm and the second elastic arm is the same as the arrangement direction of the first clamp arm and the second clamp arm, the proximal ends of the first elastic arm and the second elastic arm are connected by the connecting portion, the inner side of the distal end of the first elastic arm is connected to the distal end of the first clamp arm, the proximal end of the first clamp arm extends toward the connecting portion, the inner side of the distal end of the second elastic arm is connected to the distal end of the second clamp arm, and the proximal end of the second clamp arm extends toward the connecting portion.

3. The tissue closure clip according to claim 2, characterized in that: A first cavity is formed between the first clamping arm and the first elastic arm, and a second cavity is formed between the second clamping arm and the second elastic arm.

4. The tissue closing clip according to claim 2 or 3, characterized in that: The distal end of the first elastic arm and the distal end of the first clamp arm are combined into a first guide end, and the thickness of the first guide end gradually decreases from near to far. The distal end of the second elastic arm and the distal end of the second clamp arm are combined into a second guide end, and the thickness of the second guide end gradually decreases from near to far.

5. The tissue closure clip according to claim 4, characterized in that: The loading mechanism on the first clamping arm is a first loading hole, and the loading mechanism on the second clamping arm is a second loading hole.

6. The tissue closure clip according to claim 4, characterized in that: The loading mechanism on the first clamp arm includes a first loading column, which is connected to the first clamp arm and has a first loading hole. The loading mechanism on the second clamp arm includes a second loading column, which is connected to the second clamp arm and has a second loading hole.

7. The tissue closure clip according to claim 6, characterized in that: One end of the first loading column is connected to the first clamping arm, and the first elastic arm is provided with a first through hole for the first loading column to pass through. The other end of the first loading column extends to the outside of the first elastic arm after passing through the first through hole. There is a clearance fit between the first loading column and the first through hole, and the other end of the first loading column is provided with a first loading hole. One end of the second loading column is connected to the second clamping arm, and the second elastic arm is provided with a second through hole for the second loading column to pass through. The other end of the second loading column extends to the outside of the second elastic arm after passing through the second through hole. There is a clearance fit between the second loading column and the second through hole, and the other end of the second loading column is provided with a second loading hole.

8. The tissue closure clip according to claim 4, characterized in that: The loading mechanism on the first clamp arm is a first loading arm, one end of the first loading arm is connected to the first clamp arm, the other end of the first loading arm is connected to the first clamp arm after bypassing the first elastic arm, and there is a gap between the first loading arm and the first elastic arm; the loading mechanism on the second clamp arm is a second loading arm, one end of the second loading arm is connected to the second clamp arm, the other end of the second loading arm is connected to the second clamp arm after bypassing the second elastic arm, and there is a gap between the second loading arm and the second elastic arm.

9. The tissue closure clip according to claim 8, characterized in that: The first loading arm includes two first loading straight arms and a first loading curved arm, one end of the two first loading straight arms are connected to the first clamping arm, the other ends of the two first loading straight arms extend toward the first elastic arm, the two first loading straight arms are respectively located on opposite sides of the first elastic arm, the first loading curved arm is located on the outside of the first elastic arm, the two ends of the first loading curved arm are respectively connected to the other ends of the two first loading straight arms, and there is a gap between the first loading curved arm and the two first loading straight arms and the first elastic arm, and the second loading arm includes two second loading straight arms and a second loading curved arm, one end of the two second loading straight arms are connected to the second clamping arm, the other ends of the two second loading straight arms extend toward the second elastic arm, the two second loading straight arms are respectively located on opposite sides of the second elastic arm, the second loading curved arm is located on the outside of the second elastic arm, the two ends of the second loading curved arm are respectively connected to the other ends of the two second loading straight arms, and there is a gap between the second loading curved arm and the two second loading straight arms and the second elastic arm.

10. The tissue closure clip according to claim 8, characterized in that: The first elastic arm has two opposite sides each provided with a first groove for the first loading arm to pass through, and the second elastic arm has two opposite sides each provided with a second groove for the second loading arm to pass through.

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