A closed clamp

Abstract

The present invention discloses a closing clamp, which comprises a first clamp arm, a second clamp arm, an elastic clamp and a sleeve, wherein the first clamp arm and the second clamp arm are arranged opposite to each other, the elastic clamp is arranged along the length direction of the first clamp arm and the second clamp arm, the ends of the two elastic clamp arms of the elastic clamp are respectively provided with closing arms, the two closing arms are respectively clamped at the distal ends of the outer side surfaces of the first clamp arm and the second clamp arm, the first clamp arm, the elastic clamp and the second clamp arm are sequentially accommodated in the sleeve, and the sleeve is made of a material with biological tissue compatibility. The purpose is to provide a closing clamp with a small volume and capable of realizing single-end opening.

Description

Technical Field

[0001] The invention relates to a medical device, in particular to a device used for sealing human tissue in minimally invasive surgery. Background Art

[0002] Clinically, it is usually necessary to close the target tissue to treat or prevent a certain disease. In this process, a special delivery device is needed to deliver the closing clamp into the human body and open it to capture the target tissue, so that the target tissue is clamped between the two clamp arms of the closing clamp to complete the closure. A spring arm is provided on the closing clamp, and under the action of the spring arm, the closing clamp can be closed. When closing, the existing closing clamp adopts two-end clamping, that is, two spring arms are used to clamp the two ends of the clamp arm respectively to achieve closure, and the spring arm and the clamp arm are not in the same plane. Since the closing clamp adopts two-end closure, only the lasso method can be used to capture the tissue target, which will increase the difficulty of minimally invasive surgery, especially thoracoscopic surgery. Since the spring arm and the clamp arm are not in the same plane, the volume of the closing clamp is increased, and the size of the surgical implantation path is increased, which is not conducive to minimally invasive surgery. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a closing clip which is small in size and can realize single-end opening.

[0004] The closing clamp of the present invention comprises a first clamp arm, a second clamp arm, an elastic clamp and a sleeve, wherein the first clamp arm and the second clamp arm are arranged opposite to each other, the elastic clamp is arranged along the length direction of the first clamp arm and the second clamp arm, closing arms are respectively arranged at the ends of the two elastic clamp arms of the elastic clamp, and the two closing arms are respectively clamped at the distal ends of the outer side surfaces of the first clamp arm and the second clamp arm, the first clamp arm, the elastic clamp and the second clamp arm are sequentially accommodated in the sleeve, and the sleeve is made of a material with biological tissue compatibility.

[0005] In the closing clip of the present invention, the two closing arms of the elastic clip are respectively fixed to the first clamp arm and the second clamp arm by welding, pin connection or flexible binding members.

[0006] The closing clip of the present invention, wherein the outer side surface of the first clamp arm is provided with two oppositely arranged first thin walls, the outer side surface of the second clamp arm is provided with two oppositely arranged second thin walls, the first thin walls are arranged along the length direction of the first clamp arm, the second thin walls are arranged along the length direction of the second clamp arm, one elastic clamp arm of the elastic clamp is located between the two first thin walls, and the other elastic clamp arm of the elastic clamp is located between the two second thin walls.

[0007] The closing clamp of the present invention, wherein the first clamp arm and the second clamp arm are both plate-shaped structures.

[0008] In the closing clamp of the present invention, the inner side surfaces of the first clamp arm and the second clamp arm are both arc-shaped clamping surfaces.

[0009] The closing clip of the present invention, wherein the connection between the two elastic clamp arms of the elastic clamp is U-shaped, the arm body between the closing arm and the U-shaped connection is a long arm, and the distance between the two long arms gradually decreases from the U-shaped connection to the closing arm.

[0010] The closing clip of the present invention, wherein the closing arm is provided with a first through hole, the first thin wall and the second thin wall are both provided with a second through hole corresponding to the first through hole, pins are inserted through the first through hole and the second through hole corresponding to each other, and the pins are fixedly arranged in the first through hole and the second through hole corresponding to each other.

[0011] The closing clamp of the present invention, wherein the closing arm is provided with a first through hole, the first through hole passes through the inner side and the outer side of the closing arm, the outer sides of the first clamp arm and the second clamp arm are both provided with second through holes corresponding to the first through hole, pins are inserted through the first through hole and the second through hole corresponding to each other, and the pins are fixedly arranged in the first through hole and the second through hole corresponding to each other.

[0012] The closing clip of the present invention, wherein the closing arm is provided with a slot, the first thin wall and the second thin wall are both provided with through holes corresponding to the slot, pins are inserted in the corresponding through holes and the slot, and the pins are fixedly arranged in the corresponding through holes and the slot.

[0013] The closing clip of the present invention, wherein the long arm is a straight arm, and the closing arm is a straight arm or an arc-shaped arm.

[0014] The closing arms of the two elastic clamp arms of the elastic clamp in the closing clamp of the present invention are respectively clamped at the distal ends of the outer sides of the first clamp arm and the second clamp arm. Since the elastic clamp is arranged along the length direction of the first clamp arm and the second clamp arm, the elastic clamp and the first clamp arm and the second clamp arm are located in the same plane, thereby reducing the volume of the entire closing clamp. In the present invention, only one elastic clamp is used to realize the opening and closing of the closing clamp. During the opening process, the distal end of the closing clamp can be opened. At this time, the entire closing clamp is opened in a V shape, that is, a single-end opening is realized, so there is no need to use a lasso when capturing tissue targets.

[0015] The present invention will be further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the closing clip of the present invention;

[0017] Figure 2 This is a front view of the first embodiment of the closing clip of the present invention after the sleeve is removed;

[0018] Figure 3This is a three-dimensional diagram of the first embodiment of the closing clip of the present invention without the sleeve;

[0019] Figure 4 This is a schematic diagram of parallel opening after the sleeve is removed from the closing clip embodiment 1 of the present invention;

[0020] Figure 5 This is a schematic diagram of the V-shaped opening of the closing clip embodiment 1 of the present invention after the sleeve is removed;

[0021] Figure 6 It is a front view of the first clamp arm / the second clamp arm in the first embodiment of the closing clamp of the present invention;

[0022] Figure 7 It is a left side view of the first clamp arm / the second clamp arm in the first embodiment of the closing clamp of the present invention;

[0023] Figure 8 It is a three-dimensional diagram of the first clamp arm / the second clamp arm in the first embodiment of the closing clamp of the present invention;

[0024] Fig. 9 It is a front view of the elastic clip in the first embodiment of the closing clip of the present invention;

[0025] Fig.10 It is a right side view of the elastic clip in the first embodiment of the closing clip of the present invention;

[0026] Fig.11 It is a three-dimensional diagram of the elastic clip in the first embodiment of the closing clip of the present invention;

[0027] Fig.12 This is a front view of the second embodiment of the closing clip of the present invention after the sleeve is removed;

[0028] Fig.13 This is a three-dimensional diagram of the second embodiment of the closing clip of the present invention after the sleeve is removed;

[0029] Fig.14 This is a schematic diagram of parallel opening of the second embodiment of the closing clip of the present invention after the sleeve is removed;

[0030] Fig.15 This is a schematic diagram of the V-shaped opening of the second embodiment of the closing clamp of the present invention after the sleeve is removed;

[0031] Fig.16 It is a front view of the first clamp arm / the second clamp arm in the second embodiment of the closing clamp of the present invention;

[0032] Fig.17 It is a left side view of the first clamp arm / the second clamp arm in the second embodiment of the closing clamp of the present invention;

[0033] Fig.18 It is a three-dimensional diagram of the first clamp arm / the second clamp arm in the second embodiment of the closing clamp of the present invention;

[0034] Fig.19It is a front view of the elastic clip in the second embodiment of the closing clip of the present invention;

[0035] Fig. 20 It is a right side view of the elastic clip in the second embodiment of the closing clip of the present invention;

[0036] Fig.21 It is a three-dimensional diagram of the elastic clip in the second embodiment of the closing clip of the present invention;

[0037] Fig. 22 This is a front view of the third embodiment of the closing clip of the present invention after the sleeve is removed;

[0038] Fig.23 This is a three-dimensional diagram of the third embodiment of the closing clip of the present invention after the sleeve is removed;

[0039] Fig.24 This is a front view of the first clamp arm / the second clamp arm in the third embodiment of the closing clamp of the present invention;

[0040] Fig.25 It is a left side view of the first clamp arm / the second clamp arm in the third embodiment of the closing clamp of the present invention;

[0041] Fig.26 It is a top view of the first clamp arm / the second clamp arm in the third embodiment of the closing clamp of the present invention;

[0042] Fig. 27 It is a three-dimensional diagram of the first clamp arm / the second clamp arm in the third embodiment of the closing clamp of the present invention;

[0043] Fig.28 It is another stereoscopic view of the first clamp arm / the second clamp arm in the third embodiment of the closing clamp of the present invention;

[0044] Fig.29 This is a front view of the elastic clip in the third embodiment of the closing clip of the present invention;

[0045] Fig.30 It is a right side view of the elastic clip in the third embodiment of the closing clip of the present invention;

[0046] Fig.31 It is a three-dimensional diagram of the elastic clip in the third embodiment of the closing clip of the present invention;

[0047] Fig.32 This is a front view of the fourth embodiment of the closing clip of the present invention after the sleeve is removed;

[0048] Fig.33 This is a three-dimensional diagram of the fourth embodiment of the closing clip of the present invention without the sleeve;

[0049] Fig.34 It is a front view of the first clamp arm / the second clamp arm in the fourth embodiment of the closing clamp of the present invention;

[0050] Fig.35It is a left side view of the first clamp arm / the second clamp arm in the fourth embodiment of the closing clamp of the present invention;

[0051] Fig.36 It is a three-dimensional diagram of the first clamp arm / the second clamp arm in the fourth embodiment of the closing clamp of the present invention;

[0052] Fig.37 It is a front view of the elastic clip in the fourth embodiment of the closing clip of the present invention;

[0053] Fig.38 It is a left side view of the elastic clip in the fourth embodiment of the closing clip of the present invention;

[0054] Fig.39 It is a three-dimensional diagram of the elastic clip in the fourth embodiment of the closing clip of the present invention;

[0055] Fig.40 This is a front view of the fifth embodiment of the closing clip of the present invention after the sleeve is removed;

[0056] Fig.41 This is a three-dimensional diagram of the fifth embodiment of the closing clip of the present invention after the sleeve is removed;

[0057] Fig.42 This is a front view of the first clamp arm / the second clamp arm in the fifth embodiment of the closing clamp of the present invention;

[0058] Fig.43 It is a right side view of the first clamp arm / the second clamp arm in the fifth embodiment of the closing clamp of the present invention;

[0059] Fig.44 It is a three-dimensional diagram of the first clamp arm / the second clamp arm in the fifth embodiment of the closing clamp of the present invention;

[0060] Fig.45 This is a front view of the sixth embodiment of the closing clip of the present invention after the sleeve is removed;

[0061] Fig.46 This is a three-dimensional diagram of the sixth embodiment of the closing clip of the present invention without the sleeve;

[0062] Fig.47 It is a front view of the first clamp arm / the second clamp arm in the sixth embodiment of the closing clamp of the present invention;

[0063] Fig.48 It is a left side view of the first clamp arm / the second clamp arm in the sixth embodiment of the closing clamp of the present invention;

[0064] Fig.49 It is a three-dimensional diagram of the first clamp arm / the second clamp arm in the sixth embodiment of the closing clamp of the present invention;

[0065] Fig.50 It is a front view of the elastic clip in the sixth embodiment of the closing clip of the present invention;

[0066] Fig.51It is a three-dimensional diagram of the elastic clip in the sixth embodiment of the closing clip of the present invention;

[0067] Fig.52 This is a front view of the seventh embodiment of the closing clip of the present invention after the sleeve is removed;

[0068] Fig.53 This is a three-dimensional diagram of the seventh embodiment of the closing clip of the present invention after the sleeve is removed;

[0069] Fig.54 This is a schematic diagram of parallel opening of the closing clip embodiment 7 of the present invention after the sleeve is removed;

[0070] Fig.55 This is a schematic diagram of the V-shaped opening of the closing clip embodiment 7 of the present invention after the sleeve is removed;

[0071] Fig.56 It is a front view of the first clamp arm / the second clamp arm in the seventh embodiment of the closing clamp of the present invention;

[0072] Fig.57 It is a left side view of the first clamp arm / the second clamp arm in the seventh embodiment of the closing clamp of the present invention;

[0073] Fig.58 It is a three-dimensional diagram of the first clamp arm / the second clamp arm in the seventh embodiment of the closing clamp of the present invention;

[0074] Fig.59 It is a three-dimensional diagram of the elastic clip in the seventh embodiment of the closing clip of the present invention;

[0075] Fig.60 It is a right side view of the elastic clip in the seventh embodiment of the closing clip of the present invention;

[0076] Fig.61 It is a three-dimensional diagram of the elastic clip in the seventh embodiment of the closing clip of the present invention. DETAILED DESCRIPTION

[0077] Embodiment 1

[0078] like Figure 1 As shown, combined with Figure 2-11 As shown, the closing clamp of the present invention includes a first clamp arm 2, a second clamp arm 3, an elastic clamp 4 and a sleeve 1, the first clamp arm 2 and the second clamp arm 3 are arranged opposite to each other, the elastic clamp 4 is arranged along the length direction of the first clamp arm 2 and the second clamp arm 3, the ends of the two elastic clamp arms of the elastic clamp 4 are respectively provided with closing arms 401, the two closing arms 401 are respectively clamped at the distal ends of the outer side surfaces 11 of the first clamp arm 2 and the second clamp arm 3, the first clamp arm 2, the elastic clamp 4 and the second clamp arm 3 are sequentially accommodated in the sleeve 1, and the sleeve 1 is made of a material with bio-tissue compatibility, such as a tubular member woven from PET wire.

[0079] In the closing clip of the present invention, two first thin walls 200 arranged opposite to each other are provided on the outer side surface 11 of the first clamp arm 2, and two second thin walls 300 arranged opposite to each other are provided on the outer side surface 11 of the second clamp arm 3, wherein the first thin walls 200 are arranged along the length direction of the first clamp arm 2, and the second thin walls 300 are arranged along the length direction of the second clamp arm 3. One elastic clamp arm of the elastic clamp 4 is located between the two first thin walls 200, and the other elastic clamp arm of the elastic clamp is located between the two second thin walls 300.

[0080] In the closing clip of the present invention, the first thin wall 200 is perpendicular to the outer side 11 of the first clamp arm 2, and the second thin wall 300 is perpendicular to the outer side 11 of the second clamp arm 3. The first thin wall 200 and the second thin wall 300 are both hollow structures to reduce the weight of the entire closing clip.

[0081] The closing clip of the present invention, wherein the hollow structures of the first thin wall 200 and the second thin wall 300 are as follows: a plurality of through holes are provided on both the first thin wall 200 and the second thin wall 300, the plurality of through holes on the first thin wall 200 are evenly arranged along the length direction of the first thin wall 200, and the plurality of through holes on the second thin wall 300 are evenly arranged along the length direction of the second thin wall 300.

[0082] In the closing clamp of the present invention, the inner side surfaces of the first clamp arm 2 and the second clamp arm 3 are both arc-shaped clamping surfaces 6. When in use, the inner side surfaces of the first clamp arm 2 and the second clamp arm 3 are the clamping surfaces 6, and the clamping surfaces 6 are arc-shaped, which is more conducive to clamping tissues in the human body.

[0083] The closing clamp of the present invention, wherein the connection of the two elastic clamp arms of the elastic clamp 4 is U-shaped, the end of the elastic clamp arm is a closing arm 401, the closing arm 401 is a straight arm, the two closing arms 401 of the elastic clamp arm are respectively clamped at the distal ends of the outer side surfaces of the first clamp arm 2 and the second clamp arm 3, the inner side surfaces of the two closing arms 401 are respectively against the outer side surfaces of the first clamp arm 2 and the second clamp arm 3, the arm body between the closing arm 401 and the U-shaped connection is a long arm 400, the long arm 400 is a straight arm, and the distance between the two long arms 400 gradually decreases from the U-shaped connection to the closing arm 401. The U-shaped connection of the elastic clamp 4 enables the two elastic clamp arms to obtain the closing force required clinically, such as 7N.

[0084] like Fig. 9 As shown, combined with Fig.10 , 11 As shown, two first through holes 9 are respectively provided on the two closing arms 401 of the elastic clip 4. The specific arrangement is as follows: two cylindrical bosses are provided on the outer side surface of the closing arm 401, and each boss is provided with a first through hole 9. The first through holes 9 are arranged along the axial direction of the boss, and the first through holes 9 are perpendicular to the length direction of the elastic clip 4 and parallel to the outer side surface of the closing arm 401.

[0085] like Figure 6 As shown, combined with Figure 8 As shown, each first thin wall 200 and each second thin wall 300 is provided with two second through holes 7, and the two second through holes 7 on each first thin wall 200 are arranged one-to-one with the two first through holes 9 on one closed arm 401 of the elastic clip 4, and the two second through holes 7 on each second thin wall 300 are arranged one-to-one with the two first through holes 9 on the other closed arm 401 of the elastic clip 4.

[0086] Two limiting plates 8 are disposed on the first thin wall 200 and the second thin wall 300, and each limiting plate 8 is provided with a second through hole 7. Pins 5 are inserted into the corresponding first through holes 9 and second through holes 7, and the pins 5 are fixedly disposed in the corresponding first through holes 9 and second through holes 7 by riveting or welding.

[0087] The first clamp arm 2 and the second clamp arm 3 are both made of medical stainless steel or titanium alloy such as TC4, TC20 through wire cutting or electric spark machining. The elastic clamp 4 is made of titanium alloy TC4 or TC20 through wire cutting or electric spark machining.

[0088] Embodiment 2

[0089] like Figure 1 As shown, combined with Figure 12-21 As shown, the difference between this embodiment and the first embodiment is that only one first through hole 9 is provided on the two closing arms 401 of the elastic clip 4, and the first through hole 9 is arranged at the end of the closing arm 401. Correspondingly, only one second through hole 7 is provided on the first thin wall 200 and the second thin wall 300.

[0090] Embodiment 3

[0091] like Figure 1 As shown, combined with Figure 22-31 As shown, the difference between this embodiment and the second embodiment is that: a first through hole 9 is provided on each of the two closing arms 401, and each first through hole 9 penetrates the inner side and the outer side of the closing arm 401, and the outer side of the first clamp arm 2 and the second clamp arm 3 are provided with a second through hole 7 corresponding to the first through hole 9. Pins 5 are inserted into the first through holes 9 and the second through holes 7 corresponding to each other, and the pins 5 are fixedly arranged in the first through holes 9 and the second through holes 7 corresponding to each other by riveting or welding, that is, the second through hole 7 on the first clamp arm 2 and the first through hole 9 on one of the closing arms 401 of the elastic clamp 4 are fixedly arranged with the pins 5, and the second through hole 7 on the second clamp arm 3 and the first through hole 9 on the other closing arm 401 of the elastic clamp 4 are also fixedly arranged with the pins 5.

[0092] Embodiment 4

[0093] like Figure 1 As shown, combined with Figure 32-39 As shown, the difference between this embodiment and the third embodiment is that: no through hole is provided on the closing arm 401, and no through hole is provided on the first clamping arm 2 and the second clamping arm 3, that is, when the closing arm 401 is clamped on the outer side surface 11 of the first clamping arm 2 and the second clamping arm 3, there is no fixed connection between the closing arm 401 and the first clamping arm 2 / the second clamping arm 3, and they are only in a state of resistance.

[0094] Embodiment 5

[0095] like Figure 1 As shown, combined with Figure 40-44 As shown, the difference between this embodiment and the second embodiment is that: the first through hole 9 on the closing arm 401 is replaced by a slot 10, and the slot 10 is arranged on the outer side of the closing arm 401, and the first thin wall 200 and the second thin wall 300 are both provided with through holes corresponding to the slot 10, and pins 5 are inserted in the corresponding through holes and the slot 10, and the pins 5 are fixedly arranged in the corresponding through holes and the slot 10 by riveting or welding, that is: the through hole on the first thin wall 200 and the slot 10 on one closing arm 401 of the elastic clip 4 are fixedly provided with the pin 5, and the through hole on the second thin wall 300 and the first through hole 9 on the other closing arm 401 of the elastic clip 4 are also fixedly provided with the pin 5.

[0096] Embodiment 6

[0097] like Figure 1 As shown, combined with Figure 45-51 As shown, the difference between this embodiment and the second embodiment is that: the closing arm 401 is an arc-shaped arm, which protrudes toward the outside of the closing arm 401, the first through hole 9 is provided at the connection between the closing arm 401 and the long arm 400, and the end of the closing arm 401 is provided with a boss 402 extending toward the inside, and the boss 402 abuts against the distal end of the outer side surface of the first clamping arm 2 / the second clamping arm 3. The first thin wall 200 and the second thin wall 300 are both provided with a second through hole 7 corresponding to the first through hole 9, and the corresponding first through hole 9 and the second through hole 7 are interspersed with a pin 5, and the pin 5 is fixedly provided in the corresponding first through hole 9 and the second through hole 7 by riveting or welding, that is, the second through hole 7 on the first thin wall 200 and the first through hole 9 on one closing arm 401 of the elastic clamp 4 are fixedly provided with the pin 5, and the second through hole 7 on the second thin wall 300 and the first through hole 9 on the other closing arm 401 of the elastic clamp 4 are also fixedly provided with the pin 5.

[0098] Embodiment 7

[0099] like Figure 1 As shown, combined with Figure 52-61As shown, the difference between this embodiment and the first embodiment is that both the first clamping arm 2 and the second clamping arm 3 are plate-like structures, that is, there is no thin wall provided on the outer side surfaces of the first clamping arm 2 and the second clamping arm 3, and only the limiting plates 8 are provided. There are 4 limiting plates respectively provided on the outer side surfaces of the first clamping arm 2 and the second clamping arm 3, and the 4 limiting plates are arranged in pairs correspondingly, and each limiting plate 8 is provided with a second through hole 7.

[0100] In the above-mentioned first to third embodiments, fifth to seventh embodiments, in addition to being fixed by the pin 5, the two closing arms 401 of the elastic clip 4 can also be fixed to the first clamping arm 2 and the second clamping arm 3 by welding or a flexible binding member (such as a rope). In addition to the fixed connection, the closing arm 401 and the first clamping arm 2 and the second clamping arm 3 can also be in a non-fixed connection, that is: when the closing arm 401 is clamped on the outer side surface 11 of the first clamping arm 2 and the second clamping arm 3, there is no fixed connection between the closing arm 401 and the first clamping arm 2 / the second clamping arm 3, and they are only in a state of being in contact with each other.

[0101] In the above-mentioned fourth embodiment, in order to improve the use effect of the closing clip, the closing arm 401 can also be fixed to the first clamping arm 2 and the second clamping arm 3 by welding, pin connection or a flexible binding member (such as a rope).

[0102] In the present invention, the elastic clip 4 includes two elastic clip arms, and the two elastic clip arms are connected by an elastic member, and the elastic member enables a closing force required clinically to be obtained between the two elastic clip arms. In the above-mentioned first to seventh embodiments, the connection part of the two elastic clip arms of the elastic clip 4 is U-shaped, that is, the U-shaped connection part of the elastic clip 4 is the elastic member, which enables a closing force required clinically to be obtained between the two elastic clip arms. Of course, the connection part of the two elastic clip arms can also be C-shaped, or other regular or irregular shapes, as long as it can provide a closing force for the two elastic clip arms.

[0103] In the closing clip of the present invention, the two elastic clip arms of the elastic clip 4 are respectively clamped at the distal ends of the outer side surfaces 11 of the first clamping arm 2 and the second clamping arm 3. Since the elastic clip 4 is arranged along the length direction of the first clamping arm 2 and the second clamping arm 3, therefore, the elastic clip 4 and the first clamping arm 2 and the second clamping arm 3 are located in the same plane, thereby reducing the volume of the entire closing clip. In the present invention, only one elastic clip 4 is used to realize the opening and closing of the closing clip. During the opening process, the distal end of the closing clip can open, and at this time, the entire closing clip opens in a V shape, that is, single-end opening is realized, so there is no need to adopt a lasso method when capturing the tissue target.

[0104] When the present invention is used, the closing force of the elastic clamp 4 can be adjusted according to the actual use situation. For a given elastic clamp 4, its U-shaped connection can be squeezed, that is, the inner diameter of the U-shaped connection is reduced to increase the closing force between the two elastic clamp arms. On the contrary, when the inner diameter of the U-shaped connection is increased, the closing force between the two elastic clamp arms will be reduced. After the closing force of the closing clamp is adjusted, the closing clamp is transported into the human body through a special conveying device, and then the first clamp arm 21 and the second clamp arm 3 are opened, and then moved to the human tissue that needs to be closed, and the human tissue is placed between the first clamp arm 2 and the second clamp arm 3. After that, the conveying device releases the first clamp arm 2 and the second clamp arm 3. Under the action of the elastic clamp 4, the first clamp arm 2 and the second clamp arm 3 are closed and clamped tightly on the human tissue.

[0105] The beneficial effects of the present invention are as follows:

[0106] 1) The elastic clip 4 and the first clamp arm 2 and the second clamp arm 3 are located in the same plane, which reduces the volume of the closed clip;

[0107] 2) It is easy to deliver and capture target tissues, such as the root of the left atrial appendage, and the surgical operation is simple;

[0108] 3) The closing clamp can provide a continuous and constant parallel closing force, ensuring the safety and reliability of the product;

[0109] 4) The geometric dimensions of the U-shaped connection, the long arm 400, and the closing arm 401 of the two elastic clamp arms of the elastic clamp 4 can all affect the closing force of the distal and proximal ends of the clamp arm (based on the operator, the proximal end is close to the operator, and the distal end is far away from the operator). For example, increasing the cross-sectional area of ​​the U-shaped connection and reducing the inner diameter of the U-shaped connection can increase the closing force of the distal and proximal ends of the clamp arm; increasing the cross-sectional area of ​​the straight arm and the closing arm 401 can increase the closing force of the clamp arm; the length (extending direction) of the closing arm 401 and the cross-sectional area of ​​the closing arm 401, the length of the straight arm, and the closing force of the clamp arm can be increased. The length (extending direction) and the cross-sectional area of ​​the straight arm and their relative ratio can affect the closing force of the clamp arm and the distribution of the closing force at the distal and proximal ends of the clamp arm. For a given elastic clamp 4, the dimensions of the U-shaped connection, the long arm 400 and the closing arm 401 are all fixed. At this time, changing the geometric dimensions of the clamp arm (such as the cross-sectional area and the length) can significantly change the distribution of the closing force at the distal and proximal ends of the clamp arm. Therefore, the present invention can adjust the magnitude of the closing force of the clamp arm and the distribution of the closing force at the distal and proximal ends of the clamp arm by various means, so that the closing clamp can achieve the most ideal clinical effect;

[0110] 5) The clamp arm participates in elastic deformation, which can flexibly distribute the closing force of the elastic clamp 4, greatly improving the compliance of the tissue;

[0111] 6) The closing clamp has a simple structure, small mass, and reliable and stable performance;

[0112] 7) The closing clip is easy to process.

[0113] 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 closing clip, characterized in that: The clamping arm comprises a first clamping arm, a second clamping arm, an elastic clamp and a sleeve, wherein the first clamping arm and the second clamping arm are arranged opposite to each other, the elastic clamp is arranged along the length direction of the first clamping arm and the second clamping arm, and the ends of the two elastic clamping arms of the elastic clamp are respectively provided with closing arms, the connection between the two elastic clamping arms of the elastic clamp is U-shaped, the arm body between the closing arm and the U-shaped connection is a long arm, and the distance between the two long arms gradually decreases from the U-shaped connection to the closing arm direction, the two closing arms are respectively clamped at the distal ends of the outer side surfaces of the first clamping arm and the second clamping arm, the closing arm is an arc-shaped arm protruding toward the outer side direction of the closing arm, the two closing arms are respectively abutted against the outer side surfaces of the first clamping arm and the second clamping arm, the ends of the two closing arms are both provided with bosses extending toward the inner side direction, the two bosses are respectively abutted against the distal ends of the outer side surfaces of the first clamping arm and the second clamping arm, the first clamping arm, the elastic clamp and the second clamping arm are sequentially accommodated in the sleeve, and the sleeve is made of a material with bio-tissue compatibility. The two closing arms of the elastic clamp are respectively fixed to the first clamp arm and the second clamp arm by welding, pin connection or flexible binding members.

2. The closure clip according to claim 1, characterized in that: Two oppositely arranged first thin walls are provided on the outer side surface of the first clamp arm, and two oppositely arranged second thin walls are provided on the outer side surface of the second clamp arm. The first thin walls are arranged along the length direction of the first clamp arm, and the second thin walls are arranged along the length direction of the second clamp arm. One elastic clamp arm of the elastic clamp is located between the two first thin walls, and the other elastic clamp arm of the elastic clamp is located between the two second thin walls.

3. The closure clip according to claim 1, characterized in that: The first clamping arm and the second clamping arm are both plate-shaped structures.

4. The closure clip according to claim 2, characterized in that: The inner side surfaces of the first clamping arm and the second clamping arm are both arc-shaped clamping surfaces.

5. The closure clip according to claim 4, characterized in that: The closing arm is provided with a first through hole, and the first thin wall and the second thin wall are both provided with a second through hole corresponding to the first through hole. Pins are inserted into the corresponding first through hole and the second through hole, and the pins are fixedly arranged in the corresponding first through hole and the second through hole.

6. The closure clip according to claim 4, characterized in that: The closing arm is provided with a first through hole, and the first through hole passes through the inner side and the outer side of the closing arm. The outer sides of the first clamp arm and the second clamp arm are provided with second through holes corresponding to the first through hole. Pins are inserted into the corresponding first through holes and the second through holes, and the pins are fixedly arranged in the corresponding first through holes and the second through holes.

7. The closure clip according to claim 4, characterized in that: The closing arm is provided with a slot, the first thin wall and the second thin wall are both provided with through holes corresponding to the slot, pins are inserted in the corresponding through holes and slots, and the pins are fixed in the corresponding through holes and slots.

8. The closure clip according to any one of claims 4 to 7, characterized in that: The long arm is a straight arm.

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