CN113425361A

CN113425361A - Closing clamp

Info

Publication number: CN113425361A
Application number: CN202110608736.7A
Authority: CN
Inventors: 谢晨光; 周晓军
Original assignee: Beijing Lingjian Medical Technology Co ltd
Current assignee: Beijing Lingjian Medical Technology Co ltd
Priority date: 2021-06-01
Filing date: 2021-06-01
Publication date: 2021-09-24

Abstract

The invention discloses a closing clamp which comprises an elastic clamp body, wherein the elastic clamp body comprises a first elastic clamp arm and a second elastic clamp arm which are oppositely arranged, the near ends of the first elastic clamp arm and the second elastic clamp arm are connected through an elastic part, a first elastic ring is arranged on the first elastic clamp arm, a second elastic ring is arranged on the second elastic clamp arm, the first elastic ring and the second elastic ring are both positioned between the first elastic clamp arm and the second elastic clamp arm, and the first elastic ring and the second elastic ring are oppositely arranged. The closing clamp is small in size, capable of achieving single-end opening/closing and uniform in closing force.

Description

Closing clamp

Technical Field

The invention relates to a medical instrument, in particular to an instrument for sealing human tissues in minimally invasive surgery.

Background

Clinically, it is often desirable to seal the target tissue to treat or prevent a disease. In the process, a special conveying device is needed to convey the closing clamp into the human body, open the closing clamp, capture target tissues and clamp the target tissues between the two clamping arms of the closing clamp so as to complete the closing. The prior art approach is to adopt a two-end clamping manner, that is, two ends of a clamping arm are respectively clamped by two spring arms to realize closing, and the spring arms and the clamping arm are not in the same plane. Because the two ends of the closing clamp are closed, the tissue target can be captured only by a lasso mode, and the difficulty of minimally invasive surgery, particularly thoracoscopic surgery, can be increased. Because the spring arm and the clamping arm are not in the same plane, the volume of the closed clamp is increased, the size of an implantation path is increased, and the minimally invasive surgery is not facilitated. To solve the above problems, how to realize a closing clip which can be opened and closed at one end and has a uniform closing force has become a hot point of research.

Disclosure of Invention

The invention aims to provide a closing clamp which is small in size, can realize single-end opening/closing and has uniform closing force.

The closing clamp comprises an elastic clamp body, wherein the elastic clamp body comprises a first elastic clamp arm and a second elastic clamp arm which are oppositely arranged, the near ends of the first elastic clamp arm and the second elastic clamp arm are connected through an elastic part, a first elastic ring is arranged on the first elastic clamp arm, a second elastic ring is arranged on the second elastic clamp arm, the first elastic ring and the second elastic ring are both positioned between the first elastic clamp arm and the second elastic clamp arm, and the first elastic ring and the second elastic ring are oppositely arranged.

According to the closing clamp, the elastic part is U-shaped or M-shaped, one end of the elastic part is connected with the near end of the first elastic clamping arm, and the other end of the elastic part is connected with the near end of the second elastic clamping arm.

The closing clamp also comprises a sleeve, wherein the first elastic ring, the elastic clamp and the second elastic ring are sequentially arranged in the sleeve in a penetrating mode, and the sleeve is made of materials with biocompatibility.

The closure clip comprises a first elastic ring and a second elastic ring, wherein the first elastic ring comprises a first outer side arm and a first closure arm which are oppositely arranged, the first outer side arm is connected with the proximal end of the first closure arm through a first proximal elastic section, the first outer side arm is connected with the distal end of the first closure arm through a first distal elastic section, the second elastic ring comprises a second outer side arm and a second closure arm which are oppositely arranged, the second outer side arm is connected with the proximal end of the second closure arm through a second proximal elastic section, the second outer side arm is connected with the distal end of the second closure arm through a second distal elastic section, the first outer side arm is connected with a first elastic clip arm, the second outer side arm is connected with a second elastic clip arm, the first closure arm and the second closure arm are oppositely arranged, the side surface of the first closure arm opposite to the second closure arm is an arc-shaped surface, the side surface of the second closing arm opposite to the first closing arm is also an arc-shaped surface.

The first near-end elastic section and the first far-end elastic section are both U-shaped, two ends of the first near-end elastic section are respectively connected to the first outer side arm and the near end of the first closing arm, two ends of the first far-end elastic section are respectively connected to the first outer side arm and the far end of the first closing arm, the second near-end elastic section and the second far-end elastic section are both U-shaped, two ends of the second near-end elastic section are respectively connected to the second outer side arm and the near end of the second closing arm, and two ends of the second far-end elastic section are respectively connected to the second outer side arm and the far end of the second closing arm.

According to the closing clip, the first closing arm and the second closing arm are both in a wave-shaped structure, and the wave-shaped structure of the first closing arm is matched with the wave-shaped structure of the second closing arm.

According to the closure clip, the first near-end elastic section and the first far-end elastic section are both linear, the length of the first outer side arm is smaller than that of the first closure arm, the first elastic ring is trapezoidal overall, the second near-end elastic section and the second far-end elastic section are both linear, the length of the second outer side arm is smaller than that of the second closure arm, and the second elastic ring is trapezoidal overall.

According to the closure clip, a first far-end arm is arranged at the far end of the first outer side arm, a first clamping groove is formed between the first far-end arm and the first far-end elastic section, a second far-end arm is arranged at the far end of the second outer side arm, and a second clamping groove is formed between the second far-end arm and the second far-end elastic section.

According to the closing clamp, the first outer side arm and the first elastic clamping arm are of an integrated structure, and the second outer side arm and the second elastic clamping arm are of an integrated structure.

According to the closing clamp, the first outer side arm and the first elastic clamping arm are of a split structure, the first outer side arm is fixedly connected with the first elastic clamping arm in a welding, bonding, pressing or riveting mode, the second outer side arm and the second elastic clamping arm are of a split structure, and the second outer side arm is fixedly connected with the second elastic clamping arm in a welding, bonding, pressing or riveting mode.

The closing clamp is different from the prior art in that the elastic part of the elastic clamp provides clinical closing force for the first elastic clamping arm and the second elastic clamping arm, and the elastic ring can further adjust the size and the uniformity of the closing force. In the process of opening the closing clip, the far end of the closing clip can be opened, and the whole closing clip is opened in a V shape, so that single-end opening is realized, and a lasso mode is not needed when a tissue target is captured. When the closing clamp is used, the closing force of the elastic clamp can be adjusted according to the actual use condition, for a given elastic clamp, the elastic connection part (namely the elastic part) of the elastic clamp can be pressed to increase the closing force between the two elastic clamp arms, and conversely, when the inner diameter of the elastic connection part is increased, the closing force between the two elastic clamp arms is reduced. After the closing force of the closing clamp is adjusted, the closing clamp is conveyed into a human body through a special conveying device, then the closing clamp is opened and moved to a position of human tissue to be closed, the human tissue is positioned between the elastic rings of the two elastic clamp arms, and then the conveying device loosens the closing clamp and closes and clamps the human tissue under the action of the elastic clamps. Therefore, the closing clamp is small in size, capable of achieving single-end opening/closing and uniform in closing force.

The invention will be further explained with reference to the drawings.

Drawings

FIG. 1 is a schematic view of the closure clip of the present invention after installation of a sleeve;

FIG. 2 is a front view of a closure clip embodiment of the present invention with the sleeve removed (closed state);

FIG. 3 is a right side view of an embodiment of the closure clip of the present invention with the sleeve removed (closed position);

FIG. 4 is a front view of a V-shaped opening of an embodiment of a closure clip of the present invention with a sleeve removed;

FIG. 5 is a perspective view of a V-shaped opening of an embodiment of a closure clip of the present invention with a sleeve removed;

FIG. 6 is a schematic view of a closure clip according to an embodiment of the present invention gripping tissue;

FIG. 7 is a front view of a second embodiment of the closure clip of the present invention with the sleeve removed (closed position);

FIG. 8 is a front view of the second embodiment of the closure clip of the present invention shown in the open V-shape with the sleeve removed;

FIG. 9 is a perspective view of a second embodiment of the closure clip of the present invention shown with the sleeve removed and with the V-shaped opening;

FIG. 10 is a schematic view of a second embodiment of a closure clip according to the present invention;

FIG. 11 is a front view of a third embodiment of the closure clip of the present invention with the sleeve removed (closed position);

FIG. 12 is a front view of a V-shaped opening of a third embodiment of a closure clip of the present invention with the sleeve removed;

FIG. 13 is a perspective view of a V-shaped opening of a third embodiment of a closure clip of the present invention with the sleeve removed;

FIG. 14 is a schematic view of a triple-occluded tissue embodiment of a closure clip of the present invention;

FIG. 15 is a front view of a fourth embodiment of the closure clip of the present invention with the sleeve removed (closed position);

FIG. 16 is a front view of a V-shaped opening of a fourth embodiment of a closure clip of the present invention with the sleeve removed;

FIG. 17 is a perspective view of a V-shaped opening of a fourth embodiment of a closure clip of the present invention with the sleeve removed;

FIG. 18 is a schematic view of a four-jaw closure of an embodiment of a closure clip of the present invention;

FIG. 19 is a front view of a fifth embodiment of the closure clip of the present invention with the sleeve removed (closed position);

FIG. 20 is a front view of a V-shaped opening of a fifth embodiment of a closure clip of the present invention with the sleeve removed;

FIG. 21 is a schematic view of a five-jaw closure of an embodiment of a closure clip of the present invention;

FIG. 22 is a schematic view of a spring clip according to a sixth embodiment of the closure clip of the present invention;

FIG. 23 is a schematic view of the first/second resilient ring of a sixth embodiment of the closure clip of the present invention;

FIG. 24 is a schematic view of a six-pronged closure of tissue according to an embodiment of the closure clip of the present invention.

Detailed Description

In the description of the present invention, for the convenience of understanding the present technical solution, the proximal and distal ends mentioned in the present invention are explained as follows: the proximal and distal ends are relative to the operator distance, specifically, distal is defined as the distance to the operator and proximal is defined as the distance to the operator.

It should be noted that the terms "center", "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Example one

As shown in fig. 1 and fig. 2 to 6, the closure clip 30 of the present invention includes an elastic clip 40, wherein the elastic clip 40 includes a first elastic clip arm 41 and a second elastic clip arm 42 which are oppositely disposed, proximal ends of the first elastic clip arm 41 and the second elastic clip arm 42 are connected by an elastic portion 43, a first elastic ring 50 is disposed on the first elastic clip arm 41, a second elastic ring 60 is disposed on the second elastic clip arm 42, the first elastic ring 50 and the second elastic ring 60 are both disposed between the first elastic clip arm 41 and the second elastic clip arm 42, and the first elastic ring 50 and the second elastic ring 60 are oppositely disposed.

In the closure clip 30 of the present invention, the elastic portion 43 is U-shaped, one end of the elastic portion 43 is connected to the proximal end of the first elastic clip arm 41, and the other end of the elastic portion 43 is connected to the proximal end of the second elastic clip arm 42. That is, the elastic clip 40 has a U-shaped spring structure.

The closure clip 30 further comprises a sleeve 20, wherein the first elastic ring 50, the elastic clip 40 and the second elastic ring 60 are sequentially arranged in the sleeve 20 in a penetrating manner, and the sleeve 20 is made of a biocompatible material.

The closure clip 30 of the present invention, wherein the first resilient ring 50 comprises a first outer side arm 54 and a first closure arm 53 disposed opposite to each other, the first outer side arm 54 and the proximal end of the first closure arm 53 are connected by a first proximal resilient segment 51, the first outer side arm 54 and the distal end of the first closure arm 53 are connected by a first distal resilient segment 52, the second resilient ring 60 comprises a second outer side arm 64 and a second closure arm 63 disposed opposite to each other, the second outer side arm 64 and the proximal end of the second closure arm 63 are connected by a second proximal resilient segment 61, the second outer side arm 64 and the distal end of the second closure arm 63 are connected by a second distal resilient segment 62, the first outer side arm 54 is connected to a first resilient clip arm 41, the second outer side arm 64 is connected to a second resilient clip arm 42, the first closure arm 53 and the second closure arm 63 are disposed opposite to each other, the side 55 of the first closing arm 53 opposite to the second closing arm 63 is an arc-shaped surface, and the side 65 of the second closing arm 63 opposite to the first closing arm 53 is also an arc-shaped surface.

In the closure clip 30 of the present invention, the first proximal elastic segment 51 and the first distal elastic segment 52 are both U-shaped, two ends of the first proximal elastic segment 51 are respectively connected to the proximal ends of the first outer arm 54 and the first closure arm 53, two ends of the first distal elastic segment 52 are respectively connected to the distal ends of the first outer arm 54 and the first closure arm 53, the second proximal elastic segment 61 and the second distal elastic segment 62 are both U-shaped, two ends of the second proximal elastic segment 61 are respectively connected to the proximal ends of the second outer arm 64 and the second closure arm 63, and two ends of the second distal elastic segment 62 are respectively connected to the distal ends of the second outer arm 64 and the second closure arm 63.

The closure clip 30 of the present invention has the first outer arm 54 and the first resilient clip arm 41 formed as a single piece, and the second outer arm 64 and the second resilient clip arm 42 formed as a single piece.

The first elastic ring 50 is of an elastic ring structure and is composed of a first near-end elastic section 51, a first far-end elastic section 52, a first closing arm 53 and a first outer side arm 54, the first near-end elastic section 51 and the first far-end elastic section 52 are both of U-shaped spring structures and provide certain elasticity for the first elastic ring 50 as a whole, and the first closing arm 53 and the first outer side arm 54 are both straight arms. The second elastic loop 60 has the same structure as the first elastic loop 50 and is composed of a second proximal elastic segment 61, a second distal elastic segment 62, a second closing arm 63 and a second outer side arm 64. The proximal end of the first outer arm 54 is coupled to the first elastic clipping arm 41, and the proximal end of the second outer arm 64 is coupled to the second elastic clipping arm 42, in this embodiment, the first outer arm 54 and the first elastic clipping arm 41 are of an integral structure, and the second outer arm 64 and the second elastic clipping arm 42 are of an integral structure. The first elastic ring 50 and the second elastic ring 60 are arranged oppositely. Therefore, under the action of the elastic part 43, the first elastic ring 50 and the second elastic ring 60 can move towards each other, so that the first closing arm 53 and the second closing arm 63 are in contact, thereby realizing clamping, and the elastic part has a certain closing force, and the closing force can be adjusted to the clinically required closing force, such as 7N, by adjusting the structural size of the elastic part 43. In order to ensure that the closing is more reliable and stable and the pressure applied to the tissue 2 by the closing clip 30 is increased when the tissue 2 is clamped, the side 55 of the first closing arm 53 opposite to the second closing arm 63 and the side 65 of the second closing arm 63 opposite to the first closing arm 53 are both provided with arc-shaped surfaces, as shown in fig. 3 and 5, which is more beneficial for clamping the human tissue 2.

As shown in fig. 4 and 5, the first outer arm 54 and the first elastic clamping arm 41 are of an integral structure, and the second outer arm 64 and the second elastic clamping arm 42 are of an integral structure, so that when the closing clip 30 is opened, the opening of the distal end single port can be realized. As shown in fig. 6, the closure clip 30 is shown occluding the tissue 2, with the first and

second closure arms

53, 63 effecting occlusion of the tissue 2 by the resilient portion 43. Meanwhile, since the tissue 2 has a certain thickness, the first proximal elastic segment 51, the second proximal elastic segment 61, the first distal elastic segment 52 and the second distal elastic segment 62 are deformed to a certain extent relative to the initial state of fig. 2, so that the tissue 2 is pressed by the first proximal elastic segment, the closing

arms

53 and 63 are made of a material with certain rigidity, and the elastic force provided by the deformation of the two U-shaped elastic segments at the two ends can be transferred to the closing force of the

whole closing arms

53 and 63 on the tissue 2, so that the closing force of the closing clip 30 on the tissue 2 is further increased. Meanwhile, the elastic forces at the two ends of the closing arms generated by the proximal

elastic segments

51 and 61 and the distal

elastic segments

52 and 62 can be adjusted by adjusting the structural dimensions of the proximal elastic segments and the distal elastic segments, so that the closing forces applied to the tissue 2 by the closing

arms

53 and 63 along the length direction of the closing arms can be adjusted and optimized to be uniform or nearly uniform, and the phenomenon of closing unbalance caused by nonuniform closing forces can be avoided. The entire closure clip 30 may be integrally formed from medical stainless steel, nitinol, titanium alloy (e.g., TC4, TC20), and other elastic materials having good biocompatibility by means of wire cutting, electrical discharge, machining, and the like.

In order to improve the biocompatibility of the closure clip 30 and avoid the damage of the closed clip 30 to the surrounding tissue 2 caused by the sharp corners of the structure when being implanted, the sleeve 20 made of a biocompatible polymer flexible material, such as a thread tube woven by PET thread, may be used to sequentially accommodate the first elastic ring 50, the elastic clip 40, and the second elastic ring 60 therein, and then the openings of the two ends 21, 22 of the sleeve 20 are closed by sewing, bonding, welding, and the like, so as to form a complete closure clip, as shown in fig. 1.

Example two

As shown in fig. 7, and in conjunction with fig. 8-10, the present embodiment is different from the first embodiment in that: the elastic part is M-shaped.

In this embodiment, the closure clip 130 includes a resilient clip 140, a first resilient ring 150, and a second resilient ring 160. The structural arrangement and the functional principle are similar to those of the embodiment. The difference is that the resilient portion of the clip 140 is M-shaped, including three

resilient corners

143, 144, 145. Embodiment one closing clip 30 is opened (shown in fig. 4 and 5), the deformation of the resilient clip 40 is concentrated in the middle of the U-shaped resilient portion 43. In contrast, when the second embodiment closing clip 130 is opened (shown in fig. 8 and 9), the deformation of the elastic clip 140 is distributed to the

elastic corners

143, 144, 145, so that the amount of deformation of the elastic portion of the second embodiment closing clip 130 is smaller when the closing clip is opened at the same angle as that of the first embodiment, thereby providing the second embodiment with higher flexibility, plastic deformation resistance, and fatigue resistance than the first embodiment.

EXAMPLE III

As shown in fig. 11, and in conjunction with fig. 12-14, the present embodiment differs from the first embodiment in that: the first proximal elastic segment 251 and the first distal elastic segment 252 are both linear, the length of the first outer side arm is smaller than that of the first closing arm, the first elastic ring 250 is trapezoidal as a whole, the second proximal elastic segment 261 and the second distal elastic segment 262 are both linear, the length of the second outer side arm is smaller than that of the second closing arm, and the second elastic ring 260 is trapezoidal as a whole.

In this embodiment, the closure clip 230 includes a resilient clip 240, a first resilient ring 250, and a second resilient ring 260. The first proximal elastic segment 251, the first distal elastic segment 252, the second proximal elastic segment 261 and the second distal elastic segment 262 are all inclined structures, forming a Z-shaped spring structure, and the elastic deformation of each part is decomposed from the part in the U-shaped elastic segment of the first/second embodiment to the

elastic corners

251A, 251B, 252A, 252B, 261A, 261B, 262A and 262B at the two ends when the deformation occurs. Such a design has two benefits over the previous embodiment: first, the flexibility and closure force adjustability of the closure clip 230 is improved; second, the overall length of the embodiment three closure clip 230 is shorter than the embodiment one, two, while maintaining the same closure arm length.

Example four

As shown in fig. 15, and in conjunction with fig. 16-18, the present embodiment differs from the third embodiment in that: the first outer side arm 354 has a first distal arm 356 at a distal end thereof, a first locking groove 357 is formed between the first distal arm 356 and the first distal resilient segment 352, a second distal arm 366 is provided at a distal end of the second outer side arm 364, and a second locking groove 367 is formed between the second distal arm 366 and the second distal resilient segment 362.

In this embodiment, the closure clip 330 includes a resilient clip 340, a first resilient ring 350, and a second resilient ring 360. On the basis of the third embodiment, the distal ends of the

outer side arms

354 and 364 continue to extend in the distal direction to form

distal end arms

356 and 366, and clamping

grooves

357 and 367 are respectively formed between the

distal end arms

356 and 366 and the distal end

elastic sections

352 and 362, so that the two ends 21 and 22 can be respectively plugged into the clamping

grooves

357 and 367 after the sleeve 20 is sleeved on the closure clip 330, and the two ends 21 and 22 can be respectively clamped in the clamping

grooves

357 and 367 due to certain elasticity of the clamping groove structure, so that the sleeve 20 is fixed, and more complex assembling modes such as sewing and bonding are avoided.

EXAMPLE five

As shown in fig. 19, and in conjunction with fig. 20-21, the present embodiment differs from the first embodiment in that: the first and

second closure arms

453, 463 are each in a wave configuration, and the wave configuration of the first closure arm 453 and the wave configuration of the second closure arm 463 are matched to each other.

In this embodiment, the closure clip 430 includes a resilient clip 440, a first resilient ring 450, and a second resilient ring 460. The closure arms 453,463 of the closure clip 430 are of complementary undulating configuration, so that when occluding tissue 2, the clip length is effectively extended, while the clip slip resistance is improved.

EXAMPLE six

As shown in fig. 22, and in conjunction with fig. 23-24, the present embodiment differs from the first embodiment in that: the first outer arm 554 and the first elastic clamping arm 541 are of a split structure, the first outer arm 554 is fixedly connected with the first elastic clamping arm 541 through welding, bonding, pressing or riveting, the second outer arm 564 and the second elastic clamping arm 542 are of a split structure, and the second outer arm 564 is fixedly connected with the second elastic clamping arm 542 through welding, bonding, pressing or riveting.

In this embodiment, the closure clip 530 includes a spring clip 540, a first spring ring 550, and a second spring ring 560. The elastic clip 540, the first elastic ring 550 and the second elastic ring 560 of the closing clip 530 are separate structures, and when assembling, the first outer side arm 554 of the first elastic ring 550 and the first elastic clip arm 541, and the second outer side arm 564 of the second elastic ring 560 and the second elastic clip arm 542 are fixed by welding, bonding, crimping, riveting or the like.

The difference between the closing clip of the present invention and the prior art is that the elastic portion 43 of the elastic clip of the present invention provides the clinically required closing force for the first elastic clip arm and the second elastic clip arm, and the elastic ring can further adjust the magnitude and uniformity of the closing force. In the process of opening the closure clip, the distal end of the closure clip can be opened, and the whole closure clip is opened in a V shape, so that a single-end opening is realized, and a lasso mode is not needed when capturing the tissue 2 target. When the closing clamp is used, the closing force of the elastic clamp can be adjusted according to the actual use condition, for a given elastic clamp, the elastic connection part (namely the elastic part 43) of the elastic clamp can be pressed to increase the closing force between the two elastic clamp arms, and conversely, when the inner diameter of the elastic connection part is increased, the closing force between the two elastic clamp arms is reduced. After the closing force of the closing clamp is adjusted, the closing clamp is conveyed into a human body through a special conveying device, then the closing clamp is opened and moved to a position of human tissue 2 needing to be closed, the human tissue 2 is positioned between the elastic rings of the two elastic clamp arms, and then the conveying device loosens the closing clamp and closes and clamps the human tissue 2 under the action of the elastic clamp. Therefore, the closing clamp is small in size, capable of achieving single-end opening/closing and uniform in closing force.

In the above embodiment, the elastic portion 43 of the elastic clip is U-shaped or M-shaped, but may be other regular or irregular shapes as long as it can provide a closing force for the two elastic clip arms. The elastic section of the elastic ring has the same principle, and the near end elastic section and the far end elastic section can be U-shaped, Z-shaped or other regular and irregular shapes as long as the elastic force can be provided.

The invention has the following beneficial effects:

(1) the elastic clamp, the first elastic ring and the second elastic ring are positioned on the same plane, so that the volume of the closing clamp is reduced;

(2) the conveying is convenient, the target tissue 2, such as the root of the left auricle, is convenient to capture, and the operation is simple;

(3) the closing clamp can provide continuous and constant parallel closing force, can ensure that the closing force is uniformly distributed along the closing direction, and ensures the safety and reliability of the product;

(4) by adjusting the geometric structure size of the elastic section/elastic part of the closing clip, the size of the closing force of the clip and the closing force distribution of the far end and the near end of the closing arm can be adjusted (can be uniformly distributed, and can also be adjusted to be non-uniformly distributed according to specific use requirements), so that the closing clip achieves the optimal clinical effect;

(5) the elastic ring participates in elastic deformation, the closing force of the elastic clamp can be flexibly distributed and adjusted, and the compliance of the tissue 2 is greatly improved;

(6) the closing clamp has simple structure, small mass and reliable and stable performance;

(7) the closure clip is easy to manufacture.

The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.

Claims

1. A closure clip characterized by: including the elastic clamp, the elastic clamp includes first elasticity arm lock and second elasticity arm lock of mutual disposition, connect through elasticity portion between the proximal end of first elasticity arm lock and second elasticity arm lock, be equipped with first elastic ring in the first elasticity arm lock, be equipped with second elastic ring in the second elasticity arm lock, first elastic ring and second elastic ring all are located between first elasticity arm lock and the second elasticity arm lock, first elastic ring and second elastic ring mutual disposition.

2. The closure clip of claim 1, wherein: the elastic part is U type or M type, the one end of elastic part is connected with the near-end of first elasticity arm lock, the other end of elastic part is connected with the near-end of second elasticity arm lock.

3. The closure clip of claim 2, wherein: still include the sleeve pipe, first elastic ring, elasticity press from both sides and second elastic ring wear to locate in proper order in the sleeve pipe, the sleeve pipe adopts the material that has biocompatibility to make.

4. The closure clip of claim 3, wherein: the first elastic ring comprises a first outer side arm and a first closing arm which are oppositely arranged, the first outer side arm and the proximal end of the first closing arm are connected through a first proximal elastic section, the first outer side arm and the distal end of the first closing arm are connected through a first distal end elastic section, the second elastic ring comprises a second outer side arm and a second closing arm which are oppositely arranged, the second outer side arm and the proximal end of the second closing arm are connected through a second proximal elastic segment, the second outer side arm and the distal end of the second closing arm are connected through a second distal elastic segment, the first outer side arm is connected with a first elastic clamping arm, the second outer side arm is connected with a second elastic clamping arm, the first closing arm and the second closing arm are oppositely arranged, the side face, opposite to the second closing arm, of the first closing arm is an arc-shaped face, and the side face, opposite to the first closing arm, of the second closing arm is also an arc-shaped face.

5. The closure clip of claim 4, wherein: the first near-end elastic section and the first far-end elastic section are both U-shaped, two ends of the first near-end elastic section are respectively connected to the near ends of the first outer side arm and the first closing arm, two ends of the first far-end elastic section are respectively connected to the far ends of the first outer side arm and the first closing arm, the second near-end elastic section and the second far-end elastic section are both U-shaped, two ends of the second near-end elastic section are respectively connected to the near ends of the second outer side arm and the second closing arm, and two ends of the second far-end elastic section are respectively connected to the far ends of the second outer side arm and the second closing arm.

6. The closure clip of claim 5, wherein: the first closing arm and the second closing arm are both in a wave-shaped structure, and the wave-shaped structure of the first closing arm is matched with the wave-shaped structure of the second closing arm.

7. The closure clip of claim 4, wherein: the first near-end elastic section and the first far-end elastic section are both linear types, the length of the first outer side arm is smaller than that of the first closed arm, the first elastic ring is integrally trapezoidal, the second near-end elastic section and the second far-end elastic section are both linear types, the length of the second outer side arm is smaller than that of the second closed arm, and the second elastic ring is integrally trapezoidal.

8. The closure clip of claim 7, wherein: the far-end of the first outer side arm is provided with a first far-end arm, a first clamping groove is formed between the first far-end arm and the first far-end elastic section, the far-end of the second outer side arm is provided with a second far-end arm, and a second clamping groove is formed between the second far-end arm and the second far-end elastic section.

9. The closure clip of any of claims 4-8, wherein: the first outer side arm and the first elastic clamping arm are of an integrated structure, and the second outer side arm and the second elastic clamping arm are of an integrated structure.

10. The closure clip of any of claims 4-8, wherein: the first outer side arm and the first elastic clamping arm are of a split structure, the first outer side arm is fixedly connected with the first elastic clamping arm in a welding, bonding, pressing and holding or riveting mode, the second outer side arm and the second elastic clamping arm are of a split structure, and the second outer side arm is fixedly connected with the second elastic clamping arm in a welding, bonding, pressing and holding or riveting mode.