Soft tissue clip and clip applier

Abstract

The utility model discloses a kind of clamping device and soft tissue clamp of soft tissue clamp, it is related to medical instrument technical field, clamping device includes first clamping piece and second clamping piece;One end of first clamping piece is first hinged end, the other end is hook structure, hook structure can rotate around first hinged end;Hook structure includes first bending part and second bending part, the other end of first clamping piece is bent and extends to the direction close to second clamping piece and forms first bending part, the other end of first bending part is bent and extends to the direction close to second clamping piece and forms second bending part;One end of second clamping piece is second hinged end, the other end is bent and extends to the direction close to first clamping piece and forms third bending part, third bending part can rotate around second hinged end;The other end of the third bending part with the side of the hook structure close to the first hinged end can abut or separate. The clamping device of the utility model soft tissue clamp can increase the firmness of clamping mucosa.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a clamping device and a soft tissue clamp. Background Technology

[0002] In gastrointestinal endoscopic surgery, soft tissue clips are used to hold and fix the gastrointestinal mucosa. When using existing soft tissue clips to hold the mucosa, there may be a problem: when holding a large wound, the mucosa on one side may easily detach, causing the soft tissue clip to fail to close the wound and requiring repeated clamping, which increases the time required.

[0003] In view of the problems of the prior art, those skilled in the art urgently need a clamping device and a soft tissue clamp to increase the firmness of clamping the mucosa. Utility Model Content

[0004] The purpose of this invention is to provide a clamping device and a soft tissue clamp to solve the problems existing in the prior art and increase the firmness of clamping the mucosa.

[0005] To achieve the above objectives, this utility model provides the following solution:

[0006] This utility model provides a soft tissue clamping device, including a first clamping piece and a second clamping piece; one end of the first clamping piece is a first hinge end, and the other end is a hook-shaped structure, which can rotate around the first hinge end; the hook-shaped structure includes a first bent portion and a second bent portion, the other end of the first clamping piece is bent towards the second clamping piece and extends to form the first bent portion, and one end of the first bent portion is bent towards the second clamping piece and extends to form the second bent portion; one end of the second clamping piece is a second hinge end, and the other end is bent towards the first clamping piece and extends to form a third bent portion, which can rotate around the second hinge end; one end of the third bent portion can abut or separate from the side of the hook-shaped structure near the first hinge end.

[0007] In some embodiments, a clamping housing is further included, one end of which is provided with a first pin; a first guide groove is provided on the first clamping piece, and a second guide groove is provided on the second clamping piece; the first pin is inserted into the first guide groove and the second guide groove and can slide along the first guide groove and the second guide groove; the first hinge end of the first clamping piece and the second hinge end of the second clamping piece can move in a direction parallel to the axis of the clamping housing and drive the first guide groove and the second guide groove to slide relative to the first pin, so that the third bent portion abuts against or separates from the hook structure.

[0008] In some embodiments, a sliding plate is also included; the clamping housing is provided with an assembly groove, the sliding plate is disposed in the assembly groove, and a hinge seat is provided on one side of the sliding plate, the first hinge end and the second hinge end are both hinged to the hinge seat; the sliding plate can slide along the axial direction of the clamping housing and drive the first hinge end and the second hinge end to move in a direction parallel to the axis of the clamping housing.

[0009] In some embodiments, a fixing plate and an elastic element are also included; the fixing plate and the sliding plate are disposed opposite each other on the side away from the first clamp and the second clamp, and the elastic element is disposed between the fixing plate and the sliding plate; in the initial state, the elastic force of the elastic element enables the third bent portion to abut against the hook-shaped structure.

[0010] In some embodiments, the first clamping piece includes a first hinge portion, a first transition connection portion, a first bent portion, and a second bent portion. The first hinge portion is provided with a first guide groove and a first hinge end. The two ends of the first transition connection portion are respectively connected to the first hinge portion and the first bent portion. The second clamping piece includes a second hinge portion, a second transition connection portion, and the third bent portion. The second hinge portion is provided with a second guide groove and a second hinge end. The two ends of the second transition connection portion are respectively connected to the second hinge portion and the third bent portion. The first hinge portion and the second hinge portion are arranged parallel to each other, and both the first transition connection portion and the second transition connection portion are inclined or bent so that the third bent portion can abut against the hook-shaped structure during relative rotation.

[0011] In some embodiments, the bending angles of the first bending portion, the second bending portion, and the third bending portion are all 40° to 50°.

[0012] In some embodiments, the inner wall of the assembly groove is provided with a first sliding groove, and the sliding plate is provided with a sliding part adapted to the first sliding groove; a locking protrusion is provided in the first sliding groove on the sliding path of the sliding plate, and the sliding part is provided with a locking groove adapted to the locking protrusion.

[0013] In some embodiments, both the first clip and the second clip are made of titanium alloy.

[0014] In some embodiments, both the first guide groove and the second guide groove are arc-shaped grooves; and / or the bending angles of the first bend and the second bend are equal.

[0015] In a second aspect, this utility model provides a soft tissue clip, including the aforementioned clamping device, handheld assembly, outer tube, and pull cable. The handheld assembly includes a handle, a slider, a positioning cap, and a sheath tube. One end of the outer tube is detachably connected to the clamping device, and the other end is connected to the small-diameter end of the sheath tube. The large-diameter end of the sheath tube is connected to one end of the positioning cap, and the other end of the positioning cap is connected to one end of the handle. A second sliding groove is provided on the handle, and the slider is sleeved on the handle and slidably connected to the second sliding groove. Both the handle and the slider are provided with control rings. One end of the pull cable is detachably connected to the clamping device, and the other end passes sequentially through the outer tube, the sheath tube, and the positioning cap and is connected and fixed to the slider.

[0016] The present invention achieves the following technical advantages over the prior art:

[0017] This invention relates to a soft tissue clamping device. One end of the first clamping piece is bent inwards towards the second clamping piece to form a first bent portion. This first bent portion continues to bend inwards to form a second bent portion. By continuously bending inwards at two angles, a groove with a large curvature is formed. The entire tip of the first clamping piece is hook-shaped. The hook-shaped structure of the first clamping piece abuts against or separates from the third bent portion of the second clamping piece to open and close the clamping device. The hook-shaped structure of the first clamping piece of this invention can better hook onto the gastrointestinal mucosa, increasing the clamping firmness; especially when closing wounds, it can more easily and quickly clamp and fix the mucosa. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the soft tissue clamped in the open state in some embodiments of this utility model;

[0020] Figure 2 This is a schematic diagram of the soft tissue being clamped in a closed state in some embodiments of this utility model;

[0021] Figure 3 This is a three-dimensional structural diagram of the clamping device of the soft tissue clamp in some embodiments of this utility model;

[0022] Figure 4 This is a front view of the soft tissue clamping device in the open state in some embodiments of this utility model;

[0023] Figure 5 This is a front view of the soft tissue clamping device in the closed state in some embodiments of this utility model;

[0024] Figure 6 This is a top view of the clamping device of the soft tissue clip in some embodiments of the present invention;

[0025] Figure 7 This is a schematic diagram of the structure of the clamping shell in some embodiments of this utility model;

[0026] Figure 8 This is a schematic diagram of the sliding plate in some embodiments of the present invention.

[0027] In the diagram: 1-Clamping device; 2-Handheld assembly; 3-Outer tube; 4-Pull cable; 11-First clamping plate; 12-Second clamping plate; 13-Clamping housing; 14-First pin; 15-Sliding plate; 16-Elastic element; 17-Fixing plate; 18-Second pin; 21-Handle; 22-Slider; 23-Positioning cap; 24-Sheath tube; 111-First bend; 112-Second bend; 113-First transition connection Part; 114-First hinge part; 115-First guide groove; 121-Third bending part; 122-Second transition connection part; 123-Second hinge part; 124-Second guide groove; 131-Assembly groove; 132-First slide groove; 133-Locking protrusion; 151-Hinge seat; 152-Sliding part; 153-Locking groove; 211-Second slide groove; 212-First control ring; 221-Second control ring. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] The purpose of this invention is to provide a clamping device and a soft tissue clamp to solve the problems existing in the prior art and increase the firmness of clamping the mucosa.

[0030] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] This utility model provides a clamping device for soft tissue clips, such as... Figures 1 to 8 As shown, the clamping device 1 includes a first clamping piece 11 and a second clamping piece 12; Figures 3 to 5 In this device, one end of the first clamping piece 11 is a first hinge end, and the other end is a hook-shaped structure. The hook-shaped structure includes a first bent portion 111 and a second bent portion 112. The other end of the first clamping piece 11 is bent and extended towards the second clamping piece 12 to form the first bent portion 111. One end of the first bent portion 111 is an extension end and continues to bend and extend towards the second clamping piece 12 to form the second bent portion 112. The first bent portion 111 and the second bent portion 112 can rotate around the first hinge end. One end of the second clamping piece 12 is a second hinge end, and the other end is bent towards the first clamping piece 11 to form a third bent portion 121. The third bent portion 121 can rotate around the second hinge end. The third bent portion 121 can abut or separate from the side of the hook-shaped structure near the first hinge end to realize the opening or closing of the clamping device 1.

[0032] It should be noted that, if the area between the first clip 11 and the second clip 12 is defined as the inner side, then the first bend 111, the second bend 112, and the third bend 121 are all bent inwards; the bends of the first bend 111, the second bend 112, and the third bend 121 should be understood as smooth transition bends; and in the closed state, the third bend 121 can abut against one side of the second bend 112, or against one side of the first bend 111, or against the junction of the first bend 111 and the second bend 112.

[0033] In some implementations, such as Figure 4 As shown, the bending angle of the first bending portion 111 is α, the bending angle of the second bending portion 112 is β, and the bending angle of the third bending portion 121 is γ; and the angle range of α, β, and γ is 40° to 50°. For example, the angles of α, β, and γ can all be 45°, that is, those skilled in the art can set the angle values ​​of α, β, and γ according to the actual situation.

[0034] In some embodiments, the clamping device 1 further includes a clamping housing 13, one end of which is provided with a first pin 14, a first guide groove 115 is provided on the first clamping piece 11, and a second guide groove 124 is provided on the second clamping piece 12. (Continue reading...) Figure 4 The first pin 14 is inserted into the first guide groove 115 and the second guide groove 124, and the first pin 14 can slide along the first guide groove 115 and the second guide groove 124.

[0035] The first hinge end of the first clamping piece 11 and the second hinge end of the second clamping piece 12 can move along the direction parallel to the axis of the clamping housing 13 and drive the first guide groove 115 and the second guide groove 124 to slide relative to the first pin 14, so that the third bent part 121 abuts against or separates from the hook structure.

[0036] In some embodiments, the clamping device 1 further includes a sliding plate 15. The clamping housing 13 is provided with an assembly groove 131. The sliding plate 15 is disposed in the assembly groove 131 and can reciprocate along the axial direction of the clamping housing 13. A hinge seat 151 is provided on one side of the sliding plate 15. The first hinge end of the first clamping piece 11 and the second hinge end of the second clamping piece 12 are both hinged to the hinge seat 151, specifically through the second pin 18. The reciprocating sliding of the sliding plate 15 can drive the hinge ends of the first clamping piece 11 and the second clamping piece 12 to move along the direction parallel to the axis of the clamping housing 13.

[0037] In some embodiments, the clamping device 1 further includes a fixing plate 17 and an elastic element 16. The elastic element 16 is disposed between the fixing plate 17 and the sliding plate 15. In the initial state, the elastic force of the elastic element 16 enables the third bent portion 121 to abut against one side of the hook structure. The sliding plate 15 needs to overcome the elastic force of the elastic element 16 and slide along the axial direction of the clamping housing 13.

[0038] It should be noted that in the initial state, the clamping device 1 is in a closed state. When operating, the sliding plate 15 is pushed to overcome the elastic force of the elastic element 16, causing the first clamping piece 11 and the second clamping piece 12 to separate. Furthermore, the elastic force of the elastic element 16 enables the clamping device 1 to automatically close and apply a pre-tightening force in the closed state, thereby improving the closing effect. Moreover, those skilled in the art can specifically set the elastic force of the elastic element 16 to balance the convenience of operation and improve the closing effect.

[0039] In some implementations, such as Figure 3 and Figure 6 As shown, the first clip 11 includes a first hinge portion 114 and a first transition connection portion 113. The first hinge portion 114 is provided with a first guide groove 115 and a first hinge end. The two ends of the first transition connection portion 113 are respectively connected to the first hinge portion 114 and the first bending portion 111.

[0040] The second clip 12 includes a second hinge portion 123 and a second transition connection portion 122. The second hinge portion 123 is provided with a second guide groove 124 and a second hinge end. The two ends of the second transition connection portion 122 are respectively connected to the second hinge portion 123 and the third bending portion 121.

[0041] Furthermore, the first hinge portion 114 and the second hinge portion 123 are arranged in parallel, and the first transition connection portion 113 and the second transition connection portion 122 are both inclined or bent so that the third bending portion 121 and the hook structure can abut against each other during relative rotation.

[0042] It should be noted that, since the first hinge portion 114 and the second hinge portion 123 are arranged parallel to each other, the third bending portion 121 and the hook-shaped structure need to be guided by the first transition connection portion 113 and the second transition connection portion 122 so that they can abut or separate during rotation.

[0043] In some implementations, such as Figure 7 and Figure 8 As shown, two first sliding grooves 132 are symmetrically arranged on the inner walls of both sides of the assembly groove 131. Sliding parts 152 are correspondingly arranged on both sides of the sliding plate 15. The sliding parts 152 are adapted to be inserted into the first sliding grooves 132 and can slide along the first sliding grooves 132.

[0044] A locking protrusion 133 is provided in the first slide groove 132, and a locking groove 153 is provided on the side end of the sliding part 152. The locking groove 153 can be adapted to lock the locking protrusion 133.

[0045] It should be noted that those skilled in the art can reasonably set the degree of clamping between the locking protrusion 133 and the locking groove 153 so that when an external force is applied to the sliding plate 15, the locking protrusion 133 and the locking groove 153 can be separated to achieve the effect of repeated opening and closing.

[0046] In some embodiments, both the first clip 11 and the second clip 12 are made of medical-grade titanium alloy, which has good biocompatibility and mechanical strength.

[0047] In some embodiments, the first guide groove 115 and the second guide groove 124 are both arc-shaped grooves, which enable the first clamping piece 11 and the second clamping piece 12 to rotate synchronously to open or close.

[0048] This utility model also provides a soft tissue clip, such as Figure 1 and Figure 2 As shown, the device includes the aforementioned clamping device 1, as well as a handheld assembly 2, an outer tube 3, and a pull cable 4. The two ends of the outer tube 3 are connected to the clamping device 1 and the handheld assembly 2, respectively. The pull cable 4 is disposed inside the outer tube 3, and one end of the pull cable 4 is connected to the handheld assembly 2, while the other end can drive one end of the first clamping piece 11 and the second clamping piece 12 to slide along the direction parallel to the axis of the clamping housing 13. The outer tube 3 is a spring tube.

[0049] The handheld component 2 includes a handle 21, a slider 22, a positioning cap 23, and a protective sleeve 24. The small-diameter end of the protective sleeve 24 is connected to the outer tube 3, and the large-diameter end is connected to the positioning cap 23. The positioning cap 23 is connected to one end of the handle 21, and the other end of the handle 21 is provided with a first control ring 212. The handle 21 is also provided with a second slide groove 211. The slider 22 is fitted onto the handle 21 and is slidably connected to the second slide groove 211. Two second control rings 221 are symmetrically arranged on the slider 22.

[0050] One end of the cable 4 is fixedly connected to the slider 22, and the other end passes through the fixed plate 17 and the elastic element 16 and is detachably connected to the sliding plate 15. One end of the outer tube 3 is detachably connected to the clamping housing 13. The slider 22 can slide along the second slide groove 211 to drive the sliding plate 15 to slide along the first slide groove 132, thereby driving the first clamping piece 11 and the second clamping piece 12 to open or close. And the clamping device 1 can be rotated by rotating the handle 21.

[0051] When using the soft tissue clamp of this invention, specifically for clamping a tissue wound, the handle 21 is rotated to rotate the clamping device 1, making the opening and closing plane of the clamping device 1 perpendicular to the longitudinal axis of the tissue wound. The first clamping piece 11 hooks onto the mucosa on one side of the tissue. By tightening the slider 22 and the handle 21, the slider 22 slides along the second groove 211. The cable 4 gently clamps the first clamping piece 11 and the second clamping piece 12, causing the hook-like structure of the first clamping piece 11 to embed into the mucosal layer and hook onto the mucosa muscle layer, preventing it from loosening. Then, the clamping device 1 is opened to its maximum angle and moved to the other side of the mucosa, causing the wound to shrink and close. The second clamping piece 12 then hooks onto the opposite mucosa, and the slider 22 and the handle 21 are tightened, causing the clamping device 1 to close and release.

[0052] This invention improves the first clip 11 by forming a hook-shaped structure at one end, similar to the beak of an eagle, which increases the firmness of the clamping of the mucosa. This is especially effective when dealing with large bleeding points or closing large wounds, as it can clamp and fix the mucosa more effectively. The design is simple, practical, and easy to operate, and can significantly improve the efficiency, success rate, and safety of surgery.

[0053] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A clamping device for a soft tissue clamp, characterized in that, Including the first clip and the second clip; One end of the first clip is a first hinge end, and the other end is a hook-shaped structure, which can rotate around the first hinge end; The hook-shaped structure includes a first bending portion and a second bending portion. The other end of the first clip is bent toward the direction close to the second clip and extends to form the first bending portion. One end of the first bending portion is bent toward the direction close to the second clip and extends to form the second bending portion. One end of the second clip is a second hinge end, and the other end is bent towards the first clip and extends to form a third bend, the third bend being able to rotate around the second hinge end; One end of the third bend can abut or separate from the side of the hook-shaped structure near the first hinge end.

2. The clamping device for soft tissue clamps according to claim 1, characterized in that, It also includes a clamping housing, one end of which is provided with a first pin; The first clamping piece is provided with a first guide groove, the second clamping piece is provided with a second guide groove, and the first pin is inserted into the first guide groove and the second guide groove and can slide along the first guide groove and the second guide groove; The first hinge end of the first clamping piece and the second hinge end of the second clamping piece can move in a direction parallel to the axis of the clamping housing, causing the first guide groove and the second guide groove to slide relative to the first pin, and causing the third bent portion to abut or separate from the hook structure.

3. The clamping device for soft tissue clamps according to claim 2, characterized in that, It also includes a sliding plate; The clamping housing is provided with an assembly groove, the sliding plate is disposed in the assembly groove, and a hinge seat is provided on one side of the sliding plate. The first hinge end and the second hinge end are both hinged to the hinge seat. The sliding plate can slide along the axial direction of the clamping housing and drive the first hinge end and the second hinge end to move in a direction parallel to the axis of the clamping housing.

4. The clamping device for soft tissue clamps according to claim 3, characterized in that, It also includes a fixing plate and elastic elements; The fixing plate and the sliding plate are disposed opposite each other on the side away from the first clamping piece and the second clamping piece, and the elastic element is disposed between the fixing plate and the sliding plate; In the initial state, the elastic force of the elastic element enables the third bent portion to abut against the hook-shaped structure.

5. The clamping device for soft tissue clamps according to claim 2, characterized in that, The first clip includes a first hinge portion, a first transition connection portion, a first bending portion and a second bending portion. The first hinge portion is provided with a first guide groove and a first hinge end. The two ends of the first transition connection portion are respectively connected to the first hinge portion and the first bending portion. The second clip includes a second hinge portion, a second transition connection portion and the third bending portion. The second hinge portion is provided with a second guide groove and a second hinge end. The two ends of the second transition connection portion are respectively connected to the second hinge portion and the third bending portion. The first hinge portion and the second hinge portion are arranged parallel to each other, and both the first transition connection portion and the second transition connection portion are inclined or bent so that the third bent portion and the hook-shaped structure can abut against each other during relative rotation.

6. The clamping device for soft tissue clamps according to claim 1, characterized in that, The bending angles of the first bend, the second bend, and the third bend are all 40° to 50°.

7. The clamping device for soft tissue clamps according to claim 3, characterized in that, The inner wall of the assembly groove is provided with a first sliding groove, and the sliding plate is provided with a sliding part that is adapted to the first sliding groove; The first groove has a locking protrusion on the sliding path of the sliding plate, and the sliding part has a locking groove that matches the locking protrusion.

8. The clamping device for soft tissue clamps according to claim 1, characterized in that, Both the first clip and the second clip are made of titanium alloy.

9. The clamping device for soft tissue clamps according to claim 2, characterized in that, Both the first guide groove and the second guide groove are arc-shaped grooves; and / or The bending angles of the first bend and the second bend are equal.

10. A soft tissue clip, characterized in that, The soft tissue clip comprising any one of claims 1-9, including a clamping device, a handheld assembly, an outer tube, and a cable, wherein the handheld assembly comprises a handle, a slider, a positioning cap, and a sheath tube; One end of the outer tube is detachably connected to the clamping device, and the other end is connected to the small-diameter end of the sheath tube; the large-diameter end of the sheath tube is connected to one end of the positioning cap, and the other end of the positioning cap is connected to one end of the handle; the handle is provided with a second sliding groove, the slider is sleeved on the handle and slidably connected with the second sliding groove, and both the handle and the slider are provided with control rings; One end of the cable is detachably connected to the clamping device, and the other end passes through the outer tube, the sheath tube, and the positioning cap in sequence and is connected and fixed to the slider.

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