CN213641027U

CN213641027U - Anastomotic clamp releasing device

Info

Publication number: CN213641027U
Application number: CN201921073717.3U
Authority: CN
Inventors: 金鸿雁; 沈正华; 仇卫勤
Original assignee: Micro Tech Nanjing Co Ltd
Current assignee: Micro Tech Nanjing Co Ltd
Priority date: 2018-05-17
Filing date: 2018-05-17
Publication date: 2021-07-09
Anticipated expiration: 2028-05-17
Also published as: CN209301207U

Abstract

The utility model provides an anastomotic clamp release device, which comprises a head end, a middle flexible pipe and a handle; the head end includes acting as go-between, transparent cap and connects soft cap, connect soft cap one end with transparent cap links to each other, and the other end links to each other with the endoscope, passes transparent cap's acting as go-between pass through middle flexible tube link to the handle, the clamp of coincide can assemble in the transparent cap, the clamp of coincide is pressed on the acting as go-between for wait to release state the clamp of coincide is the tube-shape.

Description

Anastomotic clamp releasing device

The application is a divisional application with the application number of 201820736438.X, the application date of 2018, 5 and 17 months, and the name of a utility model of a digestive tract self-service anastomosis clip and a release device thereof.

Technical Field

The utility model relates to a medical appliance, in particular to a self-help anastomosis clip for alimentary canal and a releasing device thereof; the utility model discloses still relate to this concrete structure and the mode of use that coincide and press from both sides and release.

Background

With the development of endoscopic minimally invasive techniques, at present, most of the clinical hemostasis and perforation closure after endoscopic minimally invasive surgery is in clinical practice in a hemostasis mode mainly based on a hemostatic clamp, the hemostatic clamp clamps a mucous membrane layer of a tissue by using a mechanical extrusion principle to clamp the tissue, the clamp is left in the body after being released, after the wound tissue is repaired by itself, the tissue of a clamped part is necrotic and falls off due to the action of clamping force, and the clamp is discharged out of the body along with the fallen tissue through a digestive tract. At present, the retention length of the commonly used clip-closed hemostatic clip is more than 10mm, most of the clips are perpendicular to the alimentary canal wall after being released, and most of the clips clip the mucous membrane layer, so that the clips are likely to be displaced or fall off due to the peristaltic movement of the alimentary system, food intake or external force on the abdomen and the like. Especially, when a large wound surface or perforation appears clinically, the hemostatic clamp is difficult to achieve an effective closing effect due to the reasons of small clamping force, limited opening size and the like. An endoscopic stitching device (OTSC) has good closing function on large wound surfaces and perforations, but the technology is difficult to be widely used clinically in China due to the complexity of installation of the device and the high cost.

Therefore, the digestive tract self-service anastomosis clip can be produced at the same time, and the design aims to simply and quickly carry out corresponding repair on gastrointestinal tract acute hemorrhage, fistula, cracks, perforation or mucosa defect through an endoscope.

Patent CN101453957 describes a self-closing tissue fastening device for wound closure and surgery, comprising a central ring and a tissue piercing, changing from a substantially planar configuration to a substantially cylindrical configuration by applying torsional energy. But local stress concentration exists in the twisting process, so that the stability of the product is poor, and fracture and breakage occur; and the outermost side of the tissue fastening device is provided with a plurality of protruding parts, which have larger stimulation to the alimentary canal and can scratch the side wall of the alimentary canal in the process of discharging to the outside.

Patent CN107137119 improves to some extent the design in patent CN101453957, but does not solve the above mentioned problems.

Therefore, there is an urgent need for a tissue fastening device that can overcome the above problems, repair the damaged digestive tract quickly, prevent the digestive tract from being scratched, and has high stability, and is not only not easy to break but also stably fixed at the damaged digestive tract until the wound is healed.

Meanwhile, the existing release device for releasing the anastomosis clip on the market has a longer guide part, and a plurality of external thorns and/or bulges exist outside the guide part, so that the release device can bring great harm to a patient when entering the body of the patient; when the cooperation scope is used, often need earlier to use connecting fitting such as rubber circle with the fixed rear of scope and guide and can use, the operation is complicated and time-consuming. There is therefore also a great need for a delivery device which is easy to handle and which is less traumatic to the patient.

SUMMERY OF THE UTILITY MODEL

The utility model aims at designing a self-service anastomotic clamp for digestive tracts and a releasing device thereof. The anastomotic clamp matched with the releasing device can rapidly close acute hemorrhage, fistula, cracks and perforations of gastrointestinal tracts at one time; the product clamping force is large, clamp clamping force failure caused by internal and external factors can be avoided, and special requirements of suturing and then excising (including whole-course excising) can be realized for relevant pathological changes; the stability is good in the releasing (clamping) process of the anastomosis clamp, and the anastomosis clamp cannot be broken due to local stress concentration; has small stimulation to the digestive tract and is not easy to scratch the side wall of the digestive tract.

The utility model provides an anastomosis clamp, which comprises a plurality of outer rings, round corners and inner thorns which are connected in sequence, and the integral connecting structure is centrosymmetric; the outer rings are arranged in a staggered manner and are discontinuous, adjacent discontinuous outer rings are connected through the round corners, the round corners are provided with the inner thorns, the inner thorns are sharp, the outer rings face to the direction of a central symmetry point, the two round corners are reversely connected to form an S-shaped shape and then are connected with the inner thorns and the outer rings, the outer rings and the round corners in the formed connecting structure are arc-shaped, and the whole connecting structure is free of stress concentration parts.

The utility model discloses an identical clamp, a discontinuous ring that is close to circular shape is constituteed to a plurality of outer loops, does not have the sharp-pointed part of evagination.

The utility model discloses an identical clamp, a discontinuous polygon can also be constituteed to a plurality of outer loops.

The utility model discloses an coincide and press from both sides, when coinciding the clamp and assembling release, the thorn was outwards turned up from the centre of a circle of discontinuous ring in it for it is the tubular structure to be located the identical clamp of treating the release in the release.

The utility model discloses an coincide and press from both sides, the coincide that is tubular structure presss from both sides external diameter more than or equal to when not assembling coincide and press from both sides the external diameter.

The utility model discloses an identical clamp is super-elastic material.

The utility model also provides a be used for the identical clamp release that presss from both sides's assembly and release coincide, a serial communication port, coincide press from both sides release can with the identical clamp matches the use.

The utility model discloses an anastomotic clamp releasing device, which comprises a head end, a middle flexible pipe and a handle; the head end is including acting as go-between, transparent cap and connection soft cap, connect soft cap one end with transparent cap links to each other, and the other end links to each other with the endoscope, passes transparent cap's acting as go-between pass through middle flexible tube link to each other extremely the handle, the clamp of coincide can assemble in the transparent cap, the clamp of coincide is pressed on the acting as go-between for wait to release state the clamp of coinciding is the tube-shape.

The utility model discloses an coincide and press from both sides release, the head end can also include the throw-out collar, the throw-out collar is arranged in the transparent cap, the throw-out collar with pass and connect by acting as go-between the transparent cap, pass the throw-out collar with the act as go-between of transparent cap passes through middle flexible tube links to each other extremely the handle, the axial length of throw-out collar is less than the transparent cap, coincide and press from both sides and can assemble in the transparent cap, the discontinuous ring that its outer loop formed supports and leans on the throw-out collar for treat release state coincide and press from both sides and be the tube-shape.

The utility model discloses an identical clamp release, the acting as go-between passes in proper order the ejector collar with transparent cap links to each other both, and forms type omega type structure between the two.

The utility model discloses an identical clamp release, transparent cap is the bilayer structure who has transparent cap hole and connecting hole on it.

The utility model discloses a release, the cover that presss from both sides that coincide is in transparent cap lean on inboard one deck, its the discontinuous ring that the outer loop formed supports and leans on push away on the ring, just the top of interior thorn does not surpass the tip of transparent cap.

The utility model discloses a release device, connect the soft cap and constitute by elastic material.

The utility model discloses a release, middle flexible pipe is along the axial setting of the identical clamp release of pressing from both sides.

The utility model discloses a release device, its threading mode of acting as go-between does: one end of the pull wire penetrates into two holes on one side of the transparent cap, the other end of the pull wire penetrates through two symmetrical holes on the other side of the transparent cap, and the pull wire is connected to the handle through the middle flexible pipe after being folded.

The utility model discloses a release, its threading mode of acting as go-between can also be for: aligning four holes on the transparent cap and the push ring respectively, and sequentially penetrating one end of the pull wire into the hole of the transparent cap and the hole of the push ring and then out of the hole of the push ring and the hole of the transparent cap; the other end of the pull wire sequentially penetrates through the transparent cap and the four symmetrical holes of the push ring in the same mode, and the pull wire is connected to the handle through the middle flexible pipe after being furled.

The utility model discloses a release, the assembly is coincide and is located after pressing from both sides transparent cap with between the push ring the acting as go-between is type omega type structure.

The utility model discloses a release, endoscope tip card are in the release.

Drawings

FIG. 1 is a schematic view of an anastomosis clip;

FIG. 2 is a schematic view of the anastomosis clip of FIG. 1 in a released state;

figure 3 is a schematic view of the anastomosis clip shown in figure 1 in a ready-to-release state in a release device.

FIG. 4 is a schematic view of the anastomosis clip after release;

FIG. 5 is a schematic view of another embodiment anastomosis clip configuration;

figure 6 is an exploded view of an anastomosis clip release device suitable for use with the anastomosis clip of the present invention;

FIG. 7A is a cross-sectional view of the anastomosis clip release device shown in FIG. 6;

FIG. 7B is a cross-sectional view of the anastomosis clip release device shown in FIG. 6

FIG. 8 is a schematic threading view of a pull wire in the anastomosis clip release device shown in FIG. 6;

description of the reference numerals

The endoscope comprises an anastomosis clamp 1,

outer rings

101 and 601,

inner spines

102 and 602,

fillets

103 and 603, a head end 2, a push ring 201, a pull wire 202, a transparent cap 203, a connecting soft cap 204, a first transparent cap hole 2031, a second transparent cap hole 2032, a wire groove 2033, a connecting hole 2034,

push ring holes

2011 and 2012, an intermediate flexible tube 3, a flexible outer tube 301, an intermediate operating wire 302, a handle 4, a core rod 401, a sliding block 402 and an endoscope 5.

Detailed Description

The technical solution of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the invention, are given by way of illustration only. The scope of the present application is not limited to the embodiments, and the claims are to be read in this light. For purposes of clarity and understanding by one of ordinary skill in the art, the components shown are not necessarily drawn to scale relative to each other, some dimensions may be exaggerated relative to other dimensions, and irrelevant or unimportant details may not be fully drawn for clarity of illustration.

The utility model provides an anastomosis clamp, which comprises a plurality of outer rings, round corners and inner thorns which are connected in sequence, wherein all the parts are centrosymmetric, and the whole connecting structure is centrosymmetric; intervals are arranged among the outer rings and are discontinuous, the adjacent discontinuous outer rings are connected by four fillets, and the outer rings and the fillets are combined and connected to form an end-to-end streamline which is concave inwards towards the center of the ring at the fillets; the fillet is provided with the inner thorn, the inner thorn is in a pointed shape, the outer ring faces to the direction of a central symmetry point and is used for penetrating tissues when the clamp is closed, the two fillets are reversely connected to form an S-shaped structure and then are connected with the inner thorn and the outer ring, the outer ring and the fillets in the formed connecting structure are in an arc shape, the whole connecting structure is free of stress concentration points, and the stability is higher.

The utility model discloses an identical clamp, a discontinuous ring that is close to circular shape is constituteed to a plurality of outer loops, does not have the sharp-pointed part of evagination. The plurality of outer rings may also form a discontinuous polygon having other configurations and properties substantially the same or similar to the circular outer ring embodiment of the anastomosis clip. The outside of the anastomosis clip has no sharp part protruding outwards, the stimulation to the gastrointestinal tract is extremely small, the product is more smooth along with the discharge of the alimentary canal after falling off from the body, and the side wall of the alimentary canal channel can not be scratched.

The utility model discloses an identical clamp is super-elastic material, for example nickel titanium alloy material.

The utility model discloses an anastomotic clamp releasing device, which comprises a head end, a middle flexible pipe and a handle; the head end is including acting as go-between, transparent cap and connection soft cap, connect soft cap one end with transparent cap links to each other, and the other end links to each other with the endoscope, passes transparent cap's acting as go-between pass through middle flexible tube link to each other extremely the handle, the clamp of coincide can assemble in the transparent cap, the clamp of coincide is pressed on the acting as go-between for wait to release state the clamp of coinciding is the tube-shape. The outer ring of the anastomosis clamp is in contact with the pull wire, namely when the anastomosis clamp is assembled, the outer ring of the anastomosis clamp is in direct contact with the pull wire in the transparent cap, so that the horizontal pull wire is deformed under the action of a force towards the near end; the inosculating clip can also be that the fillet contacts with the pull wire and the outer ring is clamped between the pull wire and the transparent cap, because the outer ring is discontinuous, when assembling, a plurality of sections of the outer ring are clamped into the gap between the pull wire and the transparent cap and are in a state of being hung on the pull wire, so that the pull wire is deformed by the force which is transmitted from the fillet to the near end.

The utility model discloses a release, connect the soft cap and constitute by elastic material, for example the flexible glue.

The utility model discloses a release device, its threading mode of acting as go-between does: one end of the pull wire penetrates into two holes on one side of the transparent cap, the other end of the pull wire penetrates through two symmetrical holes on the other side of the transparent cap, and the pull wire is connected to the handle through the middle flexible pipe after being folded. When the head end contains the push ring, the threading mode is as follows: aligning four holes on the transparent cap and the push ring respectively, and sequentially penetrating one end of the pull wire into the hole of the transparent cap and the hole of the push ring and then out of the hole of the push ring and the hole of the transparent cap; the other end of the pull wire sequentially passes through four symmetrical holes of the transparent cap and the push ring in the same way, and the pull wire is connected to the handle through the middle flexible pipe after being tightened. Wherein the middle operating wire in the middle flexible pipe which is directly connected with the pull wire can be replaced by the extension wire of the pull wire. The utility model discloses a release, the assembly is coincide and is located after pressing from both sides transparent cap with between the push ring the acting as go-between is type omega type structure. Therefore, when the anastomosis clamp is released, the handle is moved towards the near end, so that the pull wire can be driven to move towards the near end, and the omega-shaped pull wire passing through the transparent cap and the push ring is driven to deform; and because the pull wire has no elasticity, the bottom of the omega-shaped pull wire tends to be in an upward lifting state after being stressed, so that the push ring is pushed out of the release device towards the far end, and the anastomosis clamp is released from the release device. Compared with the anastomosis clamp release device without the push ring at the head end, the push ring can enable the anastomosis clamp release process to be more stable.

The utility model discloses a release, endoscope tip card are in the release. The connecting soft cap at the head end of the releasing device is made of elastic materials, and the endoscope is directly inserted into the connecting soft cap to clamp the end part of the endoscope in the connecting soft cap, so that the endoscope is fixedly connected with the releasing device.

As shown in fig. 1-5, which illustrate an anastomosis clip in accordance with an embodiment of the present invention.

In a non-limiting embodiment of the present invention, the anastomosis clip comprises an outer ring 101, an inner barb 102 and a rounded corner 103. Fig. 1 is a schematic structural view of an anastomosis clip constructed and operative in accordance with an embodiment of the present invention, and fig. 2 is a schematic structural view of the anastomosis clip of fig. 1 in a state of awaiting release. Figure 3 is a schematic view of the circular anastomosis clip shown in figure 1 in a ready-to-release position in a release device. Wherein, the inner spine 102, the round corner 103 and the outer ring 101 are connected in sequence, and all the parts are symmetrical in the center. Wherein the fillet 103 is an arc structure close to a semicircle; a plurality of outer rings 101 form discontinuous rings at intervals at the outermost side of the anastomosis clamp, and adjacent discontinuous outer rings 101 are connected by four fillets 103; the outer ring 101 and the fillet 103 are combined and connected to form a streamline shape which is concave towards the center of the ring at the fillet 103 and is connected end to end, and the whole connecting structure has no stress concentration point; one end of the inner spine 102 is connected with the fillet 103, the inner spine 102 is centrosymmetric along the direction of the outer ring 101 pointing to the centrosymmetric point, the other end of the inner spine is pointed and is used for penetrating tissues when the anastomosis clamp clamps, and a plurality of sharp corners can be symmetrically distributed on the inner spine 102 and are used for assisting in puncturing and clamping tissues needing to be closed; adjacent discontinuous outer ring 101 link to each other by four fillets 103, preferably, between outer ring 101 and interior thorn 102, outer ring 101 is towards the discontinuous ring centre of a circle direction, two 102 arc fillets 103 link to each other reversely and link together interior thorn 102 with outer ring 101 after forming the type S, the fillet 103 that outer ring 101 and it link in the structure formed is the arc structure, the utility model discloses an anastomosis clamp can not only avoid it to produce local stress concentration when the form changes, still makes the stability of anastomosis clamp when the form changes higher, compares in the straight line connection or other connected modes between interior thorn 102 and outer ring 101 promptly, the utility model discloses an anastomosis clamp clamping-force is bigger, and required power is also bigger when taking place the form change; the S-shaped round corners are distributed in the outer ring 101 in an axisymmetric manner towards the circle center of the discontinuous ring.

The utility model discloses an identical clamp is when quiescent condition, and each outer loop 101 all is the arc of incurving, and all outer loops 101 form a discontinuous ring, does not have the sharp-pointed part of evagination, and is minimum to the stimulation of intestines and stomach, and after the product is followed internal the shedding, it is more smooth and easy along with the discharge of alimentary canal, can not fish tail alimentary canal passageway lateral wall. And compare in the anastomotic clamp of the curved existing product of outer loop 101 incurving, the utility model discloses an identical clamp will be by 20-30% less than the external diameter under the planar state just can obtain the same tissue capacity, consequently can effectually alleviate the foreign matter sense for the patient and, alleviate the injury that anastomotic clamp brought to healthy tissue on every side when centre gripping tissue.

As shown in fig. 2 and 3, when the anastomosis clip of the present invention is assembled to the releasing device to be in a releasing state, the inner spine 102 is folded outwards from the circle center of the discontinuous ring, so that the plane of the inner spine 102 is substantially perpendicular to the plane of the discontinuous ring; the distance between adjacent outer rings 101 tends to increase and the outer diameter of the discontinuous ring formed by the anastomosis clamp when the plurality of outer rings 101 is formed is greater than or equal to the outer diameter of the discontinuous ring when not fitted to the release device.

Because the outer ring 101 of the anastomosis clamp is in a linear shape or an arc shape which is bent outwards, under the condition that the outer diameters of the rings are the same, the region of the tissue which can be clamped by the anastomosis clamp with the outer ring 101 sunken inwards in the prior art is smaller than that of the anastomosis clamp with the outer ring 101 bent outwards; therefore, under the premise of clamping the same tissue quantity, the outer diameter of the anastomosis clamp of the utility model is smaller than that of the similar products. As shown in fig. 4, the schematic view of the anastomosis clamp for clamping tissue after releasing is shown, because the outer diameter is smaller, the anastomosis clamp of the present invention is assembled on the releasing device to form a tubular structure, the axial length of the tubular structure is shorter, so that the length of the head end 2 of the releasing device designed in a matching way is shorter, which is more beneficial to passing through the natural orifice of the human body; and the bottom surface is in an approximately planar state, which facilitates the installation on the release device.

The whole hyperelastic material that is of clamp that coincide, interior thorn 102, outer loop 101 and fillet 103 form and link up whole streamlined, and this structure is not only pleasing to the eye, does not have the stress concentration position that need avoid existence among the mechanical structure moreover, consequently compares in the identical clamp among the prior art, the utility model discloses an it is higher that coincide presss from both sides reliability and stability, effectively reduces when the clamp that coincide receives external force and become the damaged probability when waiting to release the state, makes its closed tissue's of performance function that it can be more stable, avoids bringing the possibility of secondary injury for the patient because of the quality problem of the clamp itself that coincide.

FIG. 4 is a schematic view of the anastomosis clip after release; after the anastomotic clamp is released by the releasing device, the tips of the inner spines 102 mutually generate clamping force to well confine the lesion tissues inside the outer ring 101. To increase the penetration force of the inner spine 102 and to better protect the inner wall tissue of the body, the tip of the inner spine 102 needs to be sharpened. It is specifically noted that the inner spine 102 is not limited to the number and length shown in the figures herein.

In a non-limiting embodiment of the present invention, the anastomosis clip 1 comprises an outer ring 601, an inner barb 602 and a rounded corner 603. As shown in fig. 5, which illustrates a schematic structural view of an anastomosis clip, constructed and operative in accordance with another embodiment of the present invention. The outer ring 601 may also be a polygon, with no curvature in a single outer ring 601, but because the outer ring 601 ends in a rounded corner 603, there is no protruding sharp portion and less irritation to the alimentary tract. The structure and performance of the anastomosis clip 1 of the present embodiment are substantially the same as or similar to those of the anastomosis clip of the outer ring 101 embodiment, except that the outer ring 601 is polygonal.

In particular, the anastomosis clamp of the present invention can be used in conjunction with any type of anastomosis clamp release device that is adapted to the anastomosis clamp to perform the assembly and release processes of the anastomosis clamp.

In a non-limiting embodiment of the present invention, as shown in fig. 6 to 8, a release device suitable for use with an anastomosis clip of the present invention comprises a head end 2, a middle flexible tube 3, a handle 4; the head end 2 comprises a push ring 201, a pull wire 202, a transparent cap 203 and a connecting soft cap 204; the intermediate flexible tube 3 includes a flexible outer tube 301 and an intermediate operating wire 302, and the handle 4 includes a core rod 401 and a slider 402. The push ring 201 is provided with

push ring holes

2011 and 2012; the transparent cap 203 has a first transparent cap hole 2031, a second transparent cap hole 2032, a wire groove 2033, and a connection hole 2034. Wherein the middle operating wire 302 may be replaced by an extension of the pull wire 202.

As shown in fig. 6, which is an exploded view of the release device, the side closer to the handle 4 is the proximal end and the side further from the handle 4 is the distal end. The transparent cap 203 is a double-layer structure having a first transparent cap hole 2031, a second transparent cap hole 2032, a wire groove 2033 and a connecting hole 2034, and the push ring 201 is a single-layer structure having

push ring holes

2011 and 2012; the push ring 201 is placed in the middle interlayer of the double-layer transparent cap 203, and the pull wire 202 penetrates and is connected between the push ring 201 and the transparent cap 203. The axial length of the push ring 201 is smaller than that of the transparent cap 203, when the anastomosis clamp 1 is assembled to the releasing device, the inner spine of the anastomosis clamp 1 is turned outwards from the circle center of the discontinuous ring, so that the anastomosis clamp 1 to be released in the releasing device is in a cylindrical structure, the cylindrical structure anastomosis clamp 1 is sleeved on one layer of the inner side of the double-layer structure transparent cap 203, the outer ring 101 of the cylindrical structure anastomosis clamp abuts against the push ring 201, and the top end of the inner spine does not exceed the end portion of the transparent cap 203. One end of the connecting soft cap 204 is sleeved on the transparent cap 203, and the other end is connected with the endoscope 5; the connection mode of the connection soft cap 204 and the endoscope 5 is a buckling mode, and as the connection soft cap 204 is made of elastic materials such as soft PVC, silica gel or soft rubber, the endoscope 5 is directly inserted into the connection soft cap 204, and the end part of the endoscope can be clamped in the connection soft cap 204, so that the endoscope is fixedly connected with the release device; therefore, the releasing device of the utility model is simple and easy to fix with the endoscope, and occupies less treatment time. The intermediate flexible tube 3 is disposed along the axial direction of the releasing means, and the distal end of the intermediate operating wire 302 is connected to the pulling wire 202 through the connecting hole 2034 and the proximal end is connected to the handle 4. The head end 2 of the release device is shorter, so that the damage to the side wall of the gastrointestinal tract is smaller when the release device of the utility model passes through the bent gastrointestinal tract; and because the outside of the whole releasing device has no pricks or bulges, the harm to human tissues is further reduced.

Figures 7A and 7B are an assembled view and a cross-sectional view, respectively, of the head end of the delivery device and a portion of the intermediate flexible tube of the anastomosis clip 1 shown in figure 6. FIG. 8 is a schematic drawing showing threading of a pull wire through the anastomosis clip release device shown in FIG. 6, in a specific manner: firstly, respectively aligning four holes on the transparent cap 203 and the push ring 201, and then simultaneously penetrating one end of the pull wire 202 into a first transparent cap hole 2031 and a push ring hole 2011, and sequentially penetrating out from a push ring hole 2012 and a second transparent cap hole 2032; the other end of the pull wire 202 sequentially passes through four symmetrical holes of the transparent cap 203 and the push ring 201 in the same manner, and finally the two wire ends are aligned and converged and then pass through the connecting hole 2034 shown in fig. 7B, the pull wire 202 between the transparent cap 203 and the push ring 201 exists in an omega-like shape as shown in fig. 8, and the wire body is just embedded into the wire groove 2033 after the pull wire 202 is tightened.

When the anastomosis clamp is released, the handle 4 is moved towards the proximal end to drive the middle flexible tube 3 connected with the handle to move towards the proximal end, and because the middle operating wire 302 is connected with the pull wire 202, the middle flexible tube 3 moves towards the proximal end to force the pull wire 202 penetrating through the connecting hole 2034 to move towards the proximal end, so as to drive the pull wire 202 penetrating between the transparent cap 203 and the push ring 201 to deform, and because the material of the pull wire 202 has no elasticity, the omega-like pull wire 202 positioned between the transparent cap 203 and the push ring 201 is deformed under stress after being stressed, specifically, both sides of the omega-like pull wire are subjected to outward tensile force, so that the bottom of the omega-like pull wire tends to be lifted upwards, the push ring 201 is pushed out of the release device towards the distal end, and the anastomosis clamp 1 is released from the release device. Therefore, when the releasing action occurs, the force applied to the anastomosis clamp 1 comes from the two segments of the pulling wires 202, and the pushing ring 201 and the pulling wires 202 are symmetrically distributed, so that the action of releasing the anastomosis clamp 1 can be completed by using the shorter head end 2 as a guide.

The pull wire 202 may be any material for human body, and is not limited to a non-metallic material or a metallic material, and preferably, may be a stainless steel wire, a nickel titanium wire, a PTFE wire, or the like.

When the release device is used, preoperative evaluation is carried out according to normal operation, the pathological change condition and the position of a patient are determined, the release device with the anastomosis clip 1 preassembled is assembled with the endoscope 5 and is sent to the pathological change position, the angle of the endoscope 5 is adjusted, and a wound surface is grabbed or sucked to the inside of the far-end transparent cap 203 by using a matched instrument or under negative pressure if necessary; the handle 4 is moved towards the near end to drive the middle flexible tube 3 connected with the handle 4 to move towards the near end, and because the middle operating wire 302 is connected with the pull wire 202, the middle flexible tube 3 moves towards the near end to force the pull wire 202 passing through the connecting hole 2034 to move towards the near end, so that the omega-shaped pull wire 202 passing through the transparent cap 203 and the push ring 201 is driven to deform, and the omega-shaped pull wire 202 between the transparent cap 203 and the push ring 201 deforms under stress because the pull wire 202 has no elasticity, and specifically, both sides of the omega-shaped pull wire are subjected to outward tensile force, so that the bottom of the omega-shaped pull wire tends to be in an upward lifted state, the push ring 201 is pushed out of the release device towards the far end, and the anastomosis clip 1 is released from the release device.

The anastomosis clamp 1 is in a state to be released when being fixed in the releasing device; after being pushed out of the releasing device, according to the principle of energy minimization, because the anastomosis clip 1 is made of super elastic material, when the anastomosis clip 1 is assembled to the releasing device to be in a cylindrical structure, the anastomosis clip 1 can store certain elastic potential energy; therefore, after the anastomosis clamp 1 is withdrawn from the releasing device, namely after the external force is removed, the elastic potential energy can be converted into kinetic energy, so that the anastomosis clamp 1 can rapidly clamp the root of the wound surface, and the clamping function is realized. At the moment, the anastomosis clip 1 can always keep a plane static state on the premise of no other external force, until the wound tissues are repaired by themselves, the tissues of the clamping part are necrotic and fall off due to the action of clamping force, and the anastomosis clip 1 is discharged out of the body along with the fallen tissues through the digestive tract.

No matter the plane of the anastomosis clamp 1 is static or in a state of waiting to be released, the outer ring is in a state close to an arc, and unnecessary injury to a human body in the using process is avoided.

Claims

1. An anastomosis clip release device, comprising: a head end (2), a middle flexible pipe (3) and a handle (4); the head end (2) comprises a pull wire (202), a transparent cap (203) and a connecting soft cap (204), one end of the connecting soft cap (204) is connected with the transparent cap (203), and the other end of the connecting soft cap is connected with the endoscope (5); a pull wire (202) passing through the transparent cap (203) is connected with the handle (4) through the middle flexible pipe (3); the anastomosis clip (1) is arranged in the transparent cap (203), and the anastomosis clip (1) is pressed on the pull wire (202) so that the anastomosis clip (1) to be released is limited by the transparent cap (203) to be in a cylindrical shape.

2. The anastomotic clip release device according to claim 1, wherein the head end (2) further comprises a push ring (201), the push ring (201) is arranged in the transparent cap (203), the push ring (201) and the transparent cap (203) are connected by a pull wire (202) passing through in a rotating manner, the pull wire (202) passing through the push ring (201) and the transparent cap (203) is connected to the handle (4) by the intermediate flexible tube (3), the push ring (201) has a smaller axial length than the transparent cap (203), and a discontinuous ring formed by an outer ring of the anastomotic clip (1) abuts against the push ring (201).

3. The anastomotic clip release device according to claim 2, wherein the pull wire (202) passes through the push ring (201) and the transparent cap (203) in sequence and forms an omega-like revolution structure between the push ring (201) and the transparent cap (203).

4. The anastomotic clip release device according to claim 2, wherein the transparent cap (203) is provided with a first transparent cap hole (2031), a second transparent cap hole (2032) and a connecting hole (2034), and the transparent cap (203) has a double-layer structure.

5. A release device according to claim 4, wherein one end of a pull wire (202) passes through two second transparent cap holes (2032) at one side of the transparent cap (203); the other end of the pull wire (202) passes through two first transparent cap holes (2031) on the other side of the transparent cap (203), and the pull wire (202) is folded and connected to the handle (4) through the middle flexible pipe (3).

6. A release device according to claim 2, wherein the anastomosis clip (1) is arranged to fit inside the transparent cap (203) such that a discontinuous ring formed by an outer ring of the anastomosis clip (1) abuts against the push ring (201) and the tips of the inner pricks of the anastomosis clip (1) do not extend beyond the end of the transparent cap (203).

7. A release device according to claim 2, wherein the soft connecting cap (204) is a tubular structure made of an elastic material.

8. A release device according to claim 1, wherein the endoscope (5) is snap-fitted inside the connecting soft cap (204).

9. A release device according to claim 1, wherein the anastomosis clip (1) comprises a plurality of outer rings (101), rounded corners (103) and inner spines (102) connected in series, the anastomosis clip (1) being centrosymmetric.

10. The release device according to claim 9, wherein the two rounded corners (103) are connected in an inverted S-like shape to connect the inner spine (102) and the outer ring (101) to form a connection structure in which the outer ring (101) and the rounded corners (103) are curved.