Medical hemostatic clip

Abstract

The utility model relates to a medical hemostatic clip, which comprises an operating part and an indwelling part connected with the operating part, the indwelling part comprises a clip and a sleeve, the clip is mounted in the sleeve and is connected with the sleeve in a relatively movable manner, and the clip has an operable state and a clipping state; the clamp comprises protruding thorns, and the sleeve comprises a sleeve body, a guide groove and a locking groove, wherein the guide groove and the locking groove are formed in the sleeve body. The guide groove and the locking groove are arranged at an interval, and the stabs are arranged in the guide groove, are driven by the operation part to move into the locking groove and are kept in a clamping and closing state; the operation part comprises a release assembly which is separately connected to the sleeve and the clamp. Due to the fact that the stabs on the clip can move into the locking grooves and enable the frame to be kept in the locking state, the clamping effect of the hemostatic clip can be achieved without too many parts, production and quality control cost of the hemostatic clip is effectively reduced, and product reliability is improved.

Description

Technical Field

[0001] This application relates to the field of medical endoscopy technology, and more specifically, to a medical hemostatic clip. Background Technology

[0002] Endoscopic hemostatic clips are devices that can be inserted into the body through the forceps channel of an endoscope to reach the affected area and stop bleeding. During use, medical personnel operate the handle to tightly close the clips, quickly blocking the bleeding vessel and achieving immediate hemostasis, thus improving surgical efficiency and success rate. Simultaneously, the clamping process avoids potential tissue damage caused by heat or electrical energy, protecting surrounding healthy tissue. The clips will naturally detach and be excreted from the digestive tract after a period of time, requiring no additional surgery for removal. Therefore, hemostatic clips are widely used in the treatment of active bleeding in the digestive tract and mucosal injuries, significantly reducing surgical trauma and patient suffering.

[0003] Some hemostatic clips, while retaining basic clamping functions, also incorporate rotation and reversible opening / closing capabilities. These additional features make the device more flexible during surgery, but also increase the overall complexity of the structure, resulting in numerous parts and making manufacturing and assembly difficult. In related technologies, the clamp assembly (excluding the operating part, Bourdon tube, fixing base, and cable) contains more than five parts, with more than four parts remaining inside the body. This increased number of parts within the body not only raises the production and quality control costs of the hemostatic clips but also reduces product reliability.

[0004] Meanwhile, the clamps of products in related technologies rely on the breakage and separation of parts to generate metal fragments, which may remain in the human body and damage the digestive tract. Summary of the Invention

[0005] The technical problem to be solved by this application is to provide an improved medical hemostatic clip, which addresses the above-mentioned deficiencies of the prior art.

[0006] The technical solution adopted by this application to solve its technical problem is: to construct a medical hemostatic clip, including an operating part and an indwelling part connected to the operating part. The indwelling part includes a clip and a sleeve. The clip is installed in the sleeve and is movably connected to the sleeve. The clip has an operable state and a clamped state.

[0007] The clamp includes a spike, and the sleeve includes a body and a guide groove and a locking groove disposed on the body; the guide groove and the locking groove are spaced apart, the spike is installed in the guide groove and driven by the operating part to move into the locking groove and remain in the clamped state;

[0008] The operating part includes a release assembly that is detachably connected to both the sleeve and the clamp.

[0009] In some embodiments, the release assembly includes a deformable hook, the clamp includes a hook groove, and the deformable hook is mounted in the hook groove;

[0010] The release assembly includes a release claw, the release claw including a claw body and a claw hook connected to the claw body, and the sleeve also includes a release groove disposed on the sleeve body; the claw hook is installed in the release groove.

[0011] In some embodiments, the sleeve is less deformable than the claw hook; the deformable hook is less deformable than the clamp.

[0012] In some embodiments, the release assembly further includes a cable connected to the deformation hook, the claw body including a claw body body and a clearance hole formed on the claw body body, the cable passing through the clearance hole; the size of the clearance hole is smaller than the size of the connection between the cable and the deformation hook.

[0013] In some embodiments, the operating part further includes a fixed base and a spring tube, the claw body of the release claw is installed in the fixed base, the claw hook of the release claw extends out of one end of the fixed base, and the other end of the fixed base is connected to the spring tube.

[0014] In some embodiments, the fixing base includes a first base body and a second base body that are interconnected; the inner diameter of the first base body is smaller than the inner diameter of the second base body, the inner diameter of the first base body is smaller than the size of the claw body, and the inner diameter of the second base body is larger than the size of the claw body.

[0015] In some embodiments, the clamp includes a first clamping arm and a second clamping arm; the first clamping arm includes a first clamping arm body and a first connecting portion and a first mating portion respectively connected to two opposite ends of the first clamping arm body;

[0016] The second clamping arm includes a second clamping arm body and a second connecting portion and a second mating portion respectively connected to two opposite ends of the second clamping arm body;

[0017] The second connecting part is connected to the first connecting part, and the first matching part and the second matching part are separated in the operable state and matched in the clamped state.

[0018] In some embodiments, the first anastomosis portion and the second anastomosis portion are serrated.

[0019] In some embodiments, the sleeve further includes a transition portion located between the locking groove and the guide groove, the transition portion having a guide surface facing inwards from the sleeve body.

[0020] In some embodiments, the guide groove is a straight groove, a curved groove, or an inclined groove.

[0021] Implementing this utility model has at least the following beneficial effects: Since the protrusions on the clamp can move into the locking groove and keep the frame locked, it can achieve the clamping effect of the hemostatic clamp without too many parts, effectively reducing the production and quality control costs of the hemostatic clamp and improving product reliability. Attached Figure Description

[0022] The present application will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0023] Figure 1 This is a three-dimensional structural schematic diagram of the medical hemostatic clip in some embodiments of this application;

[0024] Figure 2 This is a three-dimensional exploded structural diagram of the medical hemostatic clip in some embodiments of this application;

[0025] Figure 3 This is a cross-sectional structural schematic diagram of a medical hemostatic clip in some embodiments of this application;

[0026] Figure 4 This is a cross-sectional structural diagram of the medical hemostatic clip from another perspective in some embodiments of this application. Detailed Implementation

[0027] To provide a clearer understanding of the technical features, objectives, and effects of this application, the specific embodiments of this application are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or component referred to must have a specific orientation; therefore, they should not be construed as limitations on this application.

[0028] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, that component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0029] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0030] Figures 1 to 4 The diagram illustrates a hemostatic device 1 in some embodiments of the present invention, which is used via an endoscope. Specifically, the hemostatic device 1 can be used to stop bleeding; after use, it can be left in the body and expelled after a period of time. In some embodiments, the hemostatic device 1 may include an indwelling portion and an operating portion, which are operatively connected. The user can operate the indwelling portion through the operating portion to complete the hemostatic action.

[0031] In some embodiments, the indwelling device may include a clamp 10 and a sleeve 20, the clamp 10 and the sleeve 20 being movably connected relative to each other, and the clamp 10 having an operable state and a clamped state relative to the sleeve. In the operable state, the operator can move the clamp 10 to the target position through the operating part; in the clamped state, the clamp 10 is clamped to achieve hemostasis. The operator can clamp the clamp 10 through the operating part, and when it is in the clamped state, it cannot be returned to the operable state through the operating part, thus ensuring the reliability of the clamping of the clamp 10.

[0032] In some embodiments, the clamp 10 may include a first clamping arm 11, a second clamping arm 12, a spike 13, and a hook groove 14. The end of the first clamping arm 11 is connected to the end of the second clamping arm 12, and their other ends can cooperate to clamp together, thereby achieving hemostasis. The spike 13 can be connected to the sleeve 20 and is fixed to the sleeve 20 in the clamped state. The hook groove 14 can be used to connect the operating part, enabling the operator to manipulate the indwelling part, and the disengagement of the operating part from the indwelling part is also achieved through the hook groove 14.

[0033] In some embodiments, the first clamping arm 11 may include a first clamping arm body 110 and a first connecting portion 111 and a first mating portion 112 respectively connected to two opposite ends of the first clamping arm body 110.

[0034] In some embodiments, the second clamping arm 12 may include a second clamping arm body 120 and a second connecting portion 121 and a second mating portion 122 respectively connected to two opposite ends of the second clamping arm body 120. The second connecting portion 121 is connected to the first connecting portion 111 and is movably installed within the sleeve 20. The first mating portion 112 and the second mating portion 122 are separated in an operable state and mated in a clamped state. In some embodiments, the first mating portion 112 and the second mating portion 122 are serrated; it can be understood that, in addition to being serrated, the first mating portion 112 and the second mating portion 122 may also be configured with other shapes that can achieve a good clamping force of the clamp 10.

[0035] See also Figure 2 The sleeve 20 is a hollow cylindrical shape. In some embodiments, the sleeve 20 is a cylinder. It is understood that, in addition to being cylindrical, the sleeve 20 may also be elliptical, have a rounded polygonal cross-section, etc. In some embodiments, the sleeve 20 may include a cylindrical body 21, a limiting part 22, a guide groove 23, and a locking groove 24. The limiting part 22 is connected to the cylindrical body 21, and the guide groove 23 and the locking groove 24 are respectively formed on the cylindrical body 21.

[0036] A limiting part 22 is disposed at one end of the cylindrical body 21, which can be used to limit the clamp 10 from dislodging from the sleeve 20. Specifically, the limiting part 22 is located between the first clamping arm 11 and the second clamping arm 12, and the connection between the first clamping arm 11 and the second clamping arm 12 is located inside the sleeve 20, thereby limiting the clamp 10 and preventing the clamp 10 from dislodging from the sleeve 20.

[0037] See also Figure 1 and Figure 2In some embodiments, the guide groove 23 is a straight groove, which provides guidance for the clamp 10 during the pulling and clamping process, and also limits the degree of clamping and loosening of the clamp 10. Specifically, the degree of loosening of the clamp 10 can be determined by the length of the guide groove 23. Under the same conditions, the longer the guide groove 23 is, the greater the degree of loosening of the clamp 10. The extension direction of the guide groove 23 is the same as the direction in which the clamp 10 is pulled by the operating part. It can be understood that, in addition to being a straight groove, the guide groove 23 can also be a curved groove, an inclined groove, etc., so that the clamp 10 produces different clamping processes during the clamping process. For example, when it is an inclined groove, the clamp 10 will rotate to a certain extent during the clamping process, and the degree of rotation depends on the inclination of the inclined groove.

[0038] The protrusions 13 of the clamp 10 are installed in the guide groove 23 and can be driven by the operating part to move into the locking groove 24 and remain in the clamped state; specifically, it can move in the guide groove 23 to achieve the clamping and opening of the first clamping arm 11 and the second clamping arm 12 of the clamp 10.

[0039] Please see Figure 1 and Figure 2 In some embodiments, the locking groove 24 is spaced at the end of the guide groove 23 and can cooperate with the clamp 10 to keep the clamp 10 in a closed state. Specifically, the protrusion 13 on the clamp 10 slides from the guide groove 23 into the locking groove 24 and is limited by the locking groove 24, thereby keeping the clamp 10 in a closed state.

[0040] In some embodiments, the sleeve 20 further includes a transition portion located between the locking groove 24 and the guide groove 23. The transition portion is provided with a guide surface facing inwards from the sleeve body 21, so that the protrusion 13 on the clamp 10 can smoothly slide into the locking groove 24 and remain within the locking groove 24.

[0041] See also Figure 2 In some embodiments, the sleeve 20 further includes a release groove 25 disposed on the body 21. The release groove 25 can be used to connect the indwelling part and the operating part, and to separate the indwelling part and the operating part after the clamping action of the hemostatic device 1 is completed. Specifically, the release groove 25 is disposed on the body 21 of the sleeve 20, and its position relative to the locking groove 24 and the guide groove 23 is not specifically limited, and any position that does not interfere with the function of the locking groove 24 and the guide groove 23 is acceptable.

[0042] In some embodiments, the operating part may include a release component 30, a fixing seat 40, a spring tube 50, and an operating part. The release component 30 is installed inside the sleeve 20 and can be used to disconnect the indwelling part and the operating part of the hemostatic device 1, and to allow the hemostatic device 1 to complete the clamping action. The fixing seat 40 limits the release component 30 and is connected to one end of the spring tube 50. The other end of the spring tube 50 is connected to the operating part, so that the operator can operate the hemostatic device through the operating part, causing the release component 30 to disengage from the sleeve, realizing the separation of the indwelling part and the operating part, and thus realizing the clamping action of the hemostatic device 1.

[0043] See also Figure 2 and Figure 3 In some embodiments, the release assembly 30 may include a deformable hook 31, a cable 32, and a release claw 33. The deformable hook 31 is connected to the cable 32 and can move along the axis of the sleeve 20 under the action of the cable 32. Simultaneously, the deformable hook 31 is installed in the hook groove 14 so that the release assembly 30 is operably connected to the clamp 10. When the release assembly 30 is actuated by the operating part, the deformable hook 31 pulls the clamp 10 and clamps it. The release claw 33 is installed in the fixing base 40 and is operably connected to the retention part through the release groove 25 on the sleeve 20. When the operating part and the retention part are separated, the deformable hook 31 deforms and disengages from the hook groove 14.

[0044] Specifically, in some embodiments, the detachable claw 33 may include a claw body 331 and a claw hook 332 connected to the claw body 331, such as... Figure 2 As shown, the claw body 331 is installed in the fixed base 40, and the claw hook 332 extends out of the fixed base 40 and is installed in the release groove 25 on the sleeve 20. When the operator operates the operating part, it can drive the retention part. After the operation is completed, the claw hook 332 can disengage from the release groove 25 on the sleeve 20 through deformation, thereby realizing the separation of the operating part and the retention part. Therefore, in some embodiments, the deformability of the sleeve 20 is less than the deformability of the claw hook 332, so that the claw hook 332 can smoothly deform and disengage from the release groove 25, realizing the separation of the operating part and the retention part.

[0045] In some embodiments, both the deformation hook 31 and the claw hook 332 are deformed and disengaged to prevent the generation of debris, which would cause trouble for the operator.

[0046] In some embodiments, the claw body 331 may include a claw body 3310 and a clearance hole 3311 formed on the claw body 3310. The clearance hole 3311 can be used to thread the cable 32 through. The size of the clearance hole 3311 is larger than the cross-sectional size of the cable 32 and smaller than the size of the connection between the cable 32 and the deformation hook 31; so that the cable 32 can be operated smoothly, and when the operating part needs to be disengaged, the deformation hook 31 and the fixing seat 40 can be disengaged together with the retention part.

[0047] See also Figure 3 and Figure 4 In some embodiments, the fixing base 40 is cylindrical, and its outer diameter is comparable to that of the sleeve 20.

[0048] In some embodiments, the fixing base 40 may include a first base 41 and a second base 42 that are interconnected. The inner diameter of the first base 41 is smaller than the inner diameter of the second base 42, thus forming a stepped surface inside the fixing base 40. Specifically, the inner diameter of the first base 41 is smaller than the size of the claw body 331, so that the claw body 331 of the release claw 33 can be installed in the fixing base 40; the inner diameter of the second base 42 is larger than the size of the claw body 331, so that the release claw 33 can rotate or move within the second base 42. The claw hook 332 of the release claw 33 extends out of one end of the fixing base 40 to connect to the sleeve 20. Specifically, it extends out of one end of the first base 41 of the fixing base 40.

[0049] See also Figure 3 and Figure 4 The spring tube 50 is connected to the other end of the fixed base 40, specifically, to one end of the second base 42 of the fixed base 40. Since the spring tube 50 has a certain thickness, it can work together with the stepped surface between the first base 41 and the second base 42 to restrict the claw body 331 of the release claw 33, so that it is installed in the fixed base 40, that is, in the second base 42.

[0050] The size of the claw hook 332 of the detachment claw 33 is smaller than the inner diameter of the first seat 41 so that it extends out of the fixed seat 40 and is connected to the sleeve 20.

[0051] It is understood that the above embodiments only illustrate some implementation methods of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made with respect to the scope of the claims of the present utility model should fall within the scope of the claims of the present utility model.

Claims

1. A medical hemostatic clip, characterized in that, It includes an operating part and a retention part connected to the operating part. The retention part includes a clamp (10) and a sleeve (20). The clamp (10) is installed in the sleeve (20) and is movably connected to the sleeve (20). The clamp (10) has an operable state and a clamped state. The clamp (10) includes a spike (13), and the sleeve (20) includes a body (21) and a guide groove (23) and a locking groove (24) provided on the body (21); the guide groove (23) and the locking groove (24) are spaced apart, the spike (13) is installed in the guide groove (23) and driven by the operating part to move into the locking groove (24) and remain in the clamped state; The operating part includes a release component (30), which is detachably connected to the sleeve (20) and the clamp (10).

2. The medical hemostatic clip according to claim 1, characterized in that, The release assembly (30) includes a deformable hook (31), and the clamp (10) includes a hook groove (14), the deformable hook (31) being installed in the hook groove (14); The release assembly (30) includes a release claw (33), the release claw (33) includes a claw body (331) and a claw hook (332) connected to the claw body (331), and the sleeve (20) also includes a release groove (25) disposed on the sleeve body (21); the claw hook (332) is installed in the release groove (25).

3. The medical hemostatic clip according to claim 2, characterized in that, The sleeve (20) has a smaller degree of deformability than the claw hook (332); the deformable hook (31) has a smaller degree of deformability than the clamp (10).

4. The medical hemostatic clip according to claim 2, characterized in that, The release assembly (30) also includes a cable (32) connected to the deformation hook (31). The claw body (331) includes a claw body body (3310) and a clearance hole (3311) opened on the claw body body (3310). The cable (32) passes through the clearance hole (3311). The size of the clearance hole (3311) is smaller than the size of the connection between the cable (32) and the deformation hook (31).

5. The medical hemostatic clip according to claim 2, characterized in that, The operating part also includes a fixed seat (40) and a spring tube (50). The claw body (331) of the release claw (33) is installed in the fixed seat (40). The claw hook (332) of the release claw (33) extends out of one end of the fixed seat (40). The other end of the fixed seat (40) is connected to the spring tube (50).

6. The medical hemostatic clip according to claim 5, characterized in that, The fixed seat (40) includes a first seat body (41) and a second seat body (42) that are connected to each other; the inner diameter of the first seat body (41) is smaller than the inner diameter of the second seat body (42), the inner diameter of the first seat body (41) is smaller than the size of the claw body (331), and the inner diameter of the second seat body (42) is larger than the size of the claw body (331).

7. The medical hemostatic clip according to claim 1, characterized in that, The clamp (10) includes a first clamping arm (11) and a second clamping arm (12); the first clamping arm (11) includes a first clamping arm body (110) and a first connecting part (111) and a first mating part (112) respectively connected to two opposite ends of the first clamping arm body (110). The second clamping arm (12) includes a second clamping arm body (120) and a second connecting part (121) and a second mating part (122) respectively connected to two opposite ends of the second clamping arm body (120); The second connecting part (121) is connected to the first connecting part (111), and the first mating part (112) and the second mating part (122) are separated in the operable state and mated in the clamped state.

8. The medical hemostatic clip according to claim 7, characterized in that, The first anastomosis portion (112) and the second anastomosis portion (122) are serrated.

9. The medical hemostatic clip according to claim 1, characterized in that, The sleeve (20) also includes a transition section, which is located between the locking groove (24) and the guide groove (23). The transition section is provided with a guide surface, which is disposed facing the inside of the cylinder body (21).

10. The medical hemostatic clip according to claim 1, characterized in that, The guide groove (23) can be a straight groove, a curved groove, or an inclined groove.

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