Angle-adjustable hemostatic clip

Abstract

The angle-adjustable hemostatic clip comprises a traction rope, a swing cylinder, a spring tube and a fixed cylinder connected with the spring tube, and the swing cylinder comprises a front end and a rear end, the front end can be in insertion fit with a folding cylinder which is connected with a clamping jaw and can fold the clamping jaw, and the rear end is in pivot connection with the fixed cylinder through a first pivot shaft; the pulling rope is connected with a first connecting part, the first connecting part penetrates through the spring tube and the fixed tube to be connected with a second connecting part of the swinging cylinder, and the pulling rope pulls the swinging cylinder to rotate around the first pivotal shaft relative to the fixed cylinder through the first connecting part and the second connecting part so as to change the angle of the folding cylinder relative to the fixed cylinder. The clamping jaw can accurately clamp a bleeding point, operation of medical staff is greatly facilitated, and operation time is saved.

Description

Technical Field

[0001] The present application belongs to the technical field of medical devices, and specifically relates to a hemostatic clip with adjustable angle. Background Art

[0002] Hemostatic clips (titanium clips) can enter the digestive tract through the endoscopic channel and clamp the bleeding points on the stomach wall or intestinal wall to achieve the purpose of hemostasis. This mechanical hemostatic method does not cause coagulation, degeneration, or necrosis of the mucosal tissue. After a period of time, the hemostatic clips can fall off on their own and fall into the digestive tract, and eventually be excreted from the body through the digestive tract.

[0003] When the hemostatic clip is clamping the bleeding point, the spring tube opening of the hemostatic clip is in the digestive tract and parallel to the digestive tract, making it difficult for the clamp's claws to clamp on the tissue. During endoscopic surgery, the placement of the titanium clip in some special positions such as the intestinal bend will increase the difficulty of the operation and prolong the operation time, which is not conducive to the progress of the operation; it will also affect the accuracy of the titanium clip placement position, which is not conducive to the control of the bleeding point. Utility Model Content

[0004] In order to improve the accuracy of hemostatic clip placement, ensure that the hemostatic clip is in a suitable position relative to the bleeding point, and improve surgical efficiency and surgical results, the present application provides a hemostatic clip with adjustable angle.

[0005] A hemostatic clamp with adjustable angle includes a traction rope, a swinging cylinder, a spring tube, and a fixed cylinder connected to the spring tube. The swinging cylinder includes a front end that can be plugged into a retracting cylinder connected to a clamping claw and capable of retracting the clamping claw, and a rear end pivotally connected to the fixed cylinder via a first pivot axis. The traction rope is connected to a first connecting part, which passes through the spring tube, the fixed tube and the second connecting part of the swinging cylinder. The traction rope pulls the swinging cylinder to rotate relative to the fixed cylinder around the first pivot axis through the first connecting part and the second connecting part to change the angle of the retracting cylinder relative to the fixed cylinder.

[0006] In one embodiment of the present application, a driving portion is provided at the rear end of the swing cylinder; the hemostatic clamp also includes an elastic member, which is fixedly connected to the fixed cylinder and connected to the driving portion. The elastic member can give the swing cylinder a force to rotate around the first pivot axis in a first direction through the driving portion, and the traction rope can drive the swing cylinder to rotate around the first pivot axis in a second direction through the first connecting portion and the second connecting portion, and the first direction is opposite to the second direction.

[0007] In one embodiment of the present application, when the swing cylinder rotates in a first direction, it can rotate to one side of the extension direction of the fixed cylinder axis, and when the swing cylinder rotates in a second direction, it can swing to the other side of the extension direction of the fixed cylinder axis.

[0008] In one embodiment of the present application, the driving portion extends into the inner cavity of the fixing cylinder, and the elastic member is disposed in the inner cavity of the fixing cylinder.

[0009] In one embodiment of the present application, a guide hole is provided on the inner wall of the fixed cylinder, the depth direction of the guide hole is parallel to the axial direction of the fixed cylinder, the traction rope passes through the guide hole, and is connected to the inner wall of the swing cylinder through the first connecting part and the second connecting part.

[0010] In one embodiment of the present application, the first pivot axis is provided at the intersection of the axis of the fixed cylinder and the axis of the swing cylinder.

[0011] In one embodiment of the present application, the axis of the first pivot shaft is perpendicular to the axis of the fixed cylinder.

[0012] In one embodiment of the present application, the first pivot axis is perpendicular to the movement plane of the clamping jaw.

[0013] In one embodiment of the present application, the first pivot axis is parallel to the movement plane of the clamping jaw.

[0014] In one embodiment of the present application, a flexible protective sleeve is provided at the connection between the fixed cylinder and the swing cylinder, and the flexible protective sleeve is sleeved on the outer wall of the fixed cylinder and the outer wall of the swing cylinder.

[0015] This application has at least the following beneficial effects:

[0016] 1. The clamping jaws in the present application can swing relative to the tube mouth of the spring tube. When the clamping jaws are needed to clamp the bleeding point, the angles of the two clamping jaws relative to the bleeding point are adjusted. The two clamping jaws can swing in a direction perpendicular to the inner wall of the digestive tract such as the intestinal wall and the stomach wall, so that the two clamping jaws can clamp the bleeding point more directly, and at the same time facilitate the operation of medical staff, thereby improving the efficiency of the operation, the accuracy of the clamping position, and the surgical effect.

[0017] 2. The swing cylinder can swing to both sides of the fixed cylinder axis, making the surgical method more flexible and reducing the operation of rotating the clamping jaws by medical staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of an exemplary embodiment of the present application;

[0019] Figure 2 This is a structural diagram of an exemplary embodiment of the plug-in cooperation between the retracting cylinder and the swinging cylinder in the present application;

[0020] Figure 3 This is a structural diagram of an exemplary embodiment of the swing cylinder in the present application swinging under the action of the elastic member;

[0021] Figure 4This is a structural diagram of an exemplary embodiment of the present application when the swing cylinder deviates toward one side of the fixed cylinder;

[0022] Figure 5 This is a structural diagram of an exemplary embodiment of the swing cylinder in the present application swinging under the action of a traction rope;

[0023] Figure 6 This is a schematic structural diagram of an exemplary embodiment of the present application when the swing cylinder approaches the intestinal wall;

[0024] Figure 7 This is a structural diagram of an exemplary embodiment of the present application in which the traction rope and the elastic member are arranged on one side of the first pivot shaft;

[0025] Figure 8 This is a schematic structural diagram of an exemplary embodiment of the present application when two traction ropes are provided;

[0026] Figure 9 It is a structural diagram of an illustrative embodiment in the present application when the first pivot axis is perpendicular to the moving end surface of the clamping jaw.

[0027] In the picture:

[0028] 101. Folding cylinder; 102. Clamping claw; 103. Working rope;

[0029] 201, fixed cylinder; 202, first pivot axis; 203, spring tube; 204, guide hole;

[0030] 301. traction rope; 302. first connecting portion;

[0031] 401, swing cylinder; 402, second connecting portion; 403, driving portion;

[0032] 501, elastic member;

[0033] 601. Intestinal wall. DETAILED DESCRIPTION

[0034] In order to have a clearer understanding of the technical features, purposes and effects of the present application, the specific implementation methods of the present application are now described with reference to the accompanying drawings. The same reference numerals in the drawings represent components with the same structure or similar structures but the same functions.

[0035] In this document, “illustrative” means “serving as an example, instance or illustration”, and any diagram or implementation described in this document as “illustrative” should not be interpreted as a more preferred or more advantageous technical solution.

[0036] To simplify the drawings, only the parts related to the present application are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, to simplify the drawings and facilitate understanding, in some figures, only one of the components with the same structure or function is schematically shown or labeled.

[0037] See also Figures 1 to 9 Understand this application.

[0038] An angle-adjustable hemostatic clamp includes a traction rope 301, a swinging cylinder 401, a spring tube 203, and a fixed cylinder 201 connected to the spring tube 203. One end of the spring tube 203 is connected to the fixed cylinder 201, and the other end is connected to the operating handle. The swinging cylinder 401 includes a front end and a rear end. The front end of the swinging cylinder 401 can be plugged into the retraction cylinder 101 connected to the clamping jaw 102 and capable of retracting the clamping jaw 102. The rear end of the swinging cylinder 401 is pivotally connected to the fixed cylinder 201 via a first pivot shaft 202. Figure 1 、 Figure 2 The working rope 103 passes through the spring tube 203, the fixed cylinder 201, the swing cylinder 401, the gathering cylinder 101 and is connected to the clamping claw 102 in the gathering cylinder 101. The operating handle operates the opening and closing of the clamping claw 102 through the working rope 103.

[0039] See also Figure 1 、 Figure 3 The traction rope 301 is connected to the first connection part 302, the first connection part 302 passes through the spring tube 203, the fixed cylinder 201 and is connected to the second connection part 402 of the swing cylinder 401, the second connection part 402 is a hole set on the inner wall of the swing cylinder 401, the first connection part 302 is a plug that can be connected to the second connection part 402, the traction rope 301 pulls the swing cylinder 401 to rotate relative to the fixed cylinder 201 around the first pivot axis 202 through the first connection part 302 and the second connection part 402 to change the angle of the retracting cylinder 101 relative to the fixed cylinder 201; the rear end of the swing cylinder 401 is provided with a driving Part 403; the hemostatic clamp also includes an elastic member 501, which can be an elastic member such as an elastic sheet, a spring, etc. The elastic member 501 is fixedly connected to the fixed cylinder 201 and is connected to the driving part 403. When the elastic member 501 undergoes elastic deformation, the driving part 403 can give the swing cylinder 401 a force to rotate in the first direction around the first pivot axis 202. The traction rope 301 can drive the swing cylinder 401 to rotate in the second direction opposite to the first direction around the first pivot axis 202 through the first connecting part 302 and the second connecting part 402, and make the elastic member 501 undergo elastic deformation.

[0040] See also Figure 3The traction rope 301 and the elastic member 501 are respectively arranged on both sides of the line connecting the first pivot shaft 202 and the fixed cylinder 201 axis. The first pivot shaft 202 is arranged between the driving part 403 and the front end of the swing cylinder 401. Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 The elastic member 501 can give the driving part 403 a leftward force, so that the front end of the swing cylinder 401 moves to the right under the action of the elastic member 501, and the swing cylinder 401 drives the retracting cylinder 101 to move to the right, see Figure 4 , the clamping jaw 102 can be deflected to the right side of the fixed cylinder 201; when the traction rope 301 is pulled, the length of the traction rope 301 between the fixed cylinder 201 and the second connecting portion 402 is reduced, see Figure 5 The first connecting portion 302 is acted upon by the force of the traction rope 301, which drives the second connecting portion 402 to overcome the force of the elastic member 501 and realize leftward swinging. As a result, the front end of the swing cylinder 401 moves leftward under the action of the traction rope 301, and finally the clamping claw 102 can be deflected to the left side of the fixed cylinder 201, so that when the swing cylinder 401 rotates in the first direction, it can rotate to one side of the extension direction of the axis of the fixed cylinder 201, and when the swing cylinder 401 rotates in the second direction, it can swing to the other side of the extension direction of the axis of the fixed cylinder 201, so that the clamping claw 102 can swing in a direction perpendicular to the inner wall of the digestive tract. Figure 6 The clamping jaws 102 can swing in a direction perpendicular to the intestinal wall 601, so that the clamping jaws 102 can clamp the bleeding point more easily.

[0041] See also Figure 1 In one embodiment of the present application, the driving portion 403 extends into the internal cavity of the fixed cylinder 201, and the elastic member 501 is disposed in the internal cavity of the fixed cylinder 201, so that the driving portion 403 can swing more safely in the fixed cylinder 201, preventing the driving portion 403 from damaging human tissue during the swinging process.

[0042] Those skilled in the art of the present application will appreciate that the traction rope 301 and the elastic member 501 can also be arranged on the same side of the line connecting the first pivot shaft 202 and the axis of the fixed cylinder 201, see Figure 7 ,by Figure 7 The elastic member 501 can provide a pulling force to make the swing cylinder 401 swing to the right, and the traction rope 301 can provide a pulling force to make the swing cylinder 401 swing to the left, overcoming the force of the elastic member 501.

[0043] Of course, those skilled in the art of the present application will understand that the hemostatic clamp may not be provided with the elastic member 501, and may be provided with two traction ropes 301, which are respectively provided on both sides of the line connecting the first pivot shaft 202 and the fixed cylinder 201 axis, see Figure 8Two traction ropes 301 are used to realize the swinging of the swinging cylinder 401 around the first pivot axis 202 to both sides of the axis of the fixed cylinder 201, which will not be repeated here.

[0044] When the jaws 102 clamp the bleeding point, the operating handle pulls the working rope 103, so that the working rope 103 is separated from the jaws 102. At the same time, after the gathering cylinder 101 loses the force of the working rope 103 that gives the gathering cylinder 101 to approach the swing cylinder 401, the gathering cylinder 101 and the swing cylinder 401 are plugged together, so that the gathering cylinder 101 and the swing cylinder 401 can be separated, thereby achieving the technical purpose of leaving the gathering cylinder 101 and the jaws 102 in the digestive tract, and the swing cylinder 401 and the fixed cylinder 201 leaving the digestive tract under the action of the spring tube 203.

[0045] See also Figure 1 、 Figure 3 In one embodiment of the present application, a guide hole 204 is provided on the inner wall of the fixed cylinder 201. The depth direction of the guide hole 204 is parallel to the axial direction of the fixed cylinder 201. The traction rope 301 passes through the guide hole 204 and is connected to the inner wall of the swing cylinder 401 through the first connecting part 302 and the second connecting part 402. The guide hole 204 can limit the movement of the traction rope 301, so that the traction rope 301 can better pull the second connecting part 402 and prevent the traction rope 301 from moving around in the fixed cylinder 201 and interfering with the operation of other components.

[0046] See also Figure 1 、 Figure 2 、 Figure 5 In one embodiment of the present application, the first pivot shaft 202 is arranged at the intersection of the axis of the fixed cylinder 201 and the axis of the swinging cylinder 401. The axis of the first pivot shaft 202 is perpendicular to the axis of the fixed cylinder 201, so that the centering of the fixed cylinder 201 and the swinging cylinder 401 is better, and the movement trajectory of the swinging cylinder 401 relative to the fixed cylinder 201 is clearer, which is convenient for medical staff to operate.

[0047] See also Figure 4 In one embodiment of the present application, the first pivot axis 202 is parallel to the movement plane of the clamping jaw 102 , so that human tissue can more easily enter the clamping jaw 102 through the swinging of the clamping jaw 102 .

[0048] Of course, those skilled in the art will appreciate that the first pivot axis 202 in the present application can also be perpendicular to the motion plane of the clamping jaw 102, see Figure 9 .

[0049] In one embodiment of the present application, a flexible protective cover is provided at the connection between the fixed cylinder 201 and the swing cylinder 401. The flexible protective cover is provided on the outer wall of the fixed cylinder 201 and the outer wall of the swing cylinder 401. The flexible protective cover can prevent human tissue from contacting the fixed cylinder 201 and the swing cylinder 401 that can rotate relative to each other, thereby protecting the safety of human tissue.

[0050] It should be understood that although this specification is described according to various implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0051] The series of detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present application. They are not intended to limit the scope of protection of the present application. Any equivalent implementation plans or changes that do not depart from the technical spirit of the present application, such as the combination, division or repetition of features, should be included in the scope of protection of the present application.

Claims

1. An angle-adjustable hemostatic clip, characterized in that: The invention comprises a traction rope, a swinging cylinder, a spring tube, and a fixed cylinder connected to the spring tube. The swinging cylinder comprises a front end capable of being plugged into a retracting cylinder connected to a clamping claw and capable of retracting the clamping claw, and a rear end pivotally connected to the fixed cylinder via a first pivot shaft. The traction rope is connected to a first connecting part, and the first connecting part passes through the spring tube, the fixed cylinder and the second connecting part of the swing cylinder. The traction rope pulls the swing cylinder to rotate around the first pivot axis relative to the fixed cylinder through the first connecting part and the second connecting part to change the angle of the folding cylinder relative to the fixed cylinder.

2. The angle-adjustable hemostatic clip according to claim 1, characterized in that: The rear end of the swing cylinder is provided with a driving part; The hemostatic clip also includes an elastic member, which is fixedly connected to the fixed cylinder and connected to the driving part. The elastic member can give the swing cylinder a force to rotate around the first pivot axis in a first direction through the driving part. The traction rope can drive the swing cylinder to rotate around the first pivot axis in a second direction through the first connecting part and the second connecting part. The first direction is opposite to the second direction.

3. The angle-adjustable hemostatic clip according to claim 2, characterized in that: When the swing cylinder rotates in a first direction, it can rotate to one side of the extending direction of the axis of the fixed cylinder. When the swing cylinder rotates in a second direction, it can swing to the other side of the extending direction of the axis of the fixed cylinder.

4. The angle-adjustable hemostatic clip according to claim 2, characterized in that: The driving portion extends into the inner cavity of the fixing cylinder, and the elastic member is arranged in the inner cavity of the fixing cylinder.

5. The angle-adjustable hemostatic clip according to claim 1, characterized in that: A guide hole is provided on the inner wall of the fixed cylinder, the depth direction of the guide hole is parallel to the axial direction of the fixed cylinder, the traction rope passes through the guide hole, and is connected to the inner wall of the swing cylinder through the first connecting part and the second connecting part.

6. The angle-adjustable hemostatic clip according to claim 1, characterized in that: The first pivot shaft is arranged at the intersection of the axis of the fixed cylinder and the axis of the swing cylinder.

7. The angle-adjustable hemostatic clip according to claim 6, characterized in that: The axis of the first pivot shaft is perpendicular to the axis of the fixing cylinder.

8. The angle-adjustable hemostatic clip according to claim 1, characterized in that: The first pivot axis is perpendicular to the plane of movement of the jaws.

9. The angle-adjustable hemostatic clip according to claim 1, characterized in that: The first pivot axis is parallel to the plane of motion of the jaws.

10. The angle-adjustable hemostatic clip according to claim 1, characterized in that: A flexible protective sleeve is provided at the connection between the fixed cylinder and the swing cylinder, and the flexible protective sleeve is sleeved on the outer wall of the fixed cylinder and the outer wall of the swing cylinder.

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