Clip and hemostatic clip using the clip

Abstract

The present application relates to the field of medical device technology, and more particularly to a clip and a hemostatic clamp employing the clip, comprising a first clamp arm and a second clamp arm, the first and second clamp arms being connected, the inner walls of the first and second clamp arms each being provided with ridges for contacting a bleeding site. The present application also includes a conveying assembly comprising a pull rod, a push block, and a connecting rod, one end of the connecting rod being connected to the clip, the other end of the connecting rod being connected to the push block, the push block being slidably mounted on the pull rod, and the push block being provided with a locking assembly. The present application has the characteristics of stable clamping and is not susceptible to misoperation.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a clip and a hemostatic clip using the clip. Background Art

[0002] Complications such as ruptured blood vessels, ligated polyps, ulcers, and other iatrogenic bleeding are common complications in internal medicine. Traditionally, bleeding has been treated primarily with blood transfusions and injections of coagulants, with severe cases requiring emergency surgical intervention. With the increasing maturity of endoscopic technology, hemostatic clips have become the primary method for endoscopic hemostasis. Hemostatic clips use the mechanical pressure generated by the closing of two clips to compress the bleeding site, blocking blood flow. The clips are then separated using an external control handle, allowing them to remain in the body for sustained hemostasis.

[0003] The hemostatic clamp consists of two parts: a delivery device and a clamping device. The clamping device is assembled on the delivery device and is inserted into the body by the delivery device for positioning and detachment. After the operation is completed, the delivery device is withdrawn from the body, while the clamping device remains in the body to continue to stop bleeding.

[0004] However, the inner wall of the clamping device of the existing hemostatic clip is smooth, and the closing force during clamping is relatively small, which easily causes the clamping position to deviate. Summary of the Invention

[0005] In order to solve the problem of weak clamping force of a hemostatic clip, the present application provides a clip and a hemostatic clip using the clip.

[0006] On the one hand, the present application provides a clip that adopts the following technical solution: a clip, including a first clamp arm and a second clamp arm, the first clamp arm and the second clamp arm are connected, and the inner walls of the first clamp arm and the second clamp arm are provided with convex patterns, and the convex patterns are used to contact the bleeding site.

[0007] By adopting the above technical solution, by providing convex patterns on the inner walls of the first clamp arm and the second clamp arm, when clamping the bleeding area, the convex patterns can enhance the contact area between the first clamp arm and the second clamp arm and the bleeding area, thereby achieving a better clamping effect and making the clamping more stable.

[0008] In a specific embodiment, the convex patterns are pyramid-shaped.

[0009] By adopting the above technical solution, by setting the convex pattern into a pyramid shape, the multiple side walls of the pyramid can further enhance the contact area with the bleeding site, making the clamping more stable and achieving a better clamping effect.

[0010] On the other hand, the present application also provides a hemostatic clip equipped with the above-mentioned clip, including a conveying assembly, the conveying assembly including a pull rod, a push block and a connecting rod, one end of the connecting rod is connected to the clip, and the other end of the connecting rod is connected to the push block, the push block is slidably installed on the pull rod, and the push block is provided with a locking assembly.

[0011] By adopting the above technical solution, the push block is pushed, and the push block can drive the connecting rod to move, thereby driving the clamping piece to move, thereby realizing the opening and closing of the clamping piece. By setting a locking component, when the locking component locks the push block, the push block cannot be pushed. The push block can only be pushed after being unlocked, thereby avoiding the occurrence of misoperation as much as possible and making the operation more precise.

[0012] In a specific feasible implementation scheme, the push block includes a connecting block slidably mounted on the pull rod and push rings installed on both sides of the push block, the connecting block is provided with a sliding groove, and the locking assembly includes a locking block, a pressing block and a spring, the locking block is slidably mounted in the sliding groove, the pull rod is provided with a locking groove, the locking groove is used to limit the locking block, the spring is sleeved on the locking block, the pressing block is connected to the locking block, one end of the spring is in contact with the connecting block, and the other end is in contact with the pressing block, the locking block is provided with an annular groove, and the annular groove is used to make the locking block slide in the locking groove.

[0013] By adopting the above technical solution, during operation, by pressing the pressing block, the pressing block drives the locking groove to move into the locking groove, the pressing block compresses the spring, the spring contracts, and the locking block enters the locking groove, so that the locking block can slide in the locking groove; when the pressing block is released, the spring resets, so that the locking block is engaged with the inner wall of the locking groove, thereby limiting the locking block and then limiting the movement of the push block, which can minimize the occurrence of misoperation during operation.

[0014] In a specific implementation scheme, an elastic ring is provided on the locking block, and the end of the elastic ring close to the pressing block is connected to the locking block, and the outer diameter of the elastic ring close to the pressing block is larger than the outer diameter of the end away from the pressing block.

[0015] By adopting the above technical solution and setting an elastic ring, when the elastic ring contacts the slide groove, the elastic force of the elastic ring can cause the elastic ring to come into contact with the inner wall of the slide groove, thereby limiting the movement of the locking block, and then limiting the movement of the push block, thereby locking the push block and avoiding accidental touch as much as possible.

[0016] In a specific possible implementation manner, a plurality of avoidance grooves are provided on the elastic ring, and the avoidance grooves are arranged at intervals along the circumference of the axis of the locking block.

[0017] By adopting the above technical solution and providing the avoidance groove, when the inner wall of the slide groove compresses the elastic ring, the elastic ring can be prevented from being squeezed and deformed as much as possible.

[0018] In a specific possible implementation manner, a middle portion of a side wall of the connecting block facing the push ring is recessed toward a side away from the push ring.

[0019] By adopting the above technical solution, since the side wall of the connecting block facing the push ring is recessed toward the side away from the push ring, when pushing the connecting block, slipping between the hand and the connecting block can be avoided as much as possible, and the hand can be avoided from falling off the connecting block as much as possible.

[0020] In a specific possible implementation scheme, the pull rod is provided with an adjustment component, and the adjustment component is used to adjust the thrust of the push block.

[0021] By adopting the above technical solution and setting the adjustment component, the user can adjust the thrust according to his or her own usage habits during operation, which helps to achieve better operating effects.

[0022] In a specific possible implementation scheme, the adjustment assembly includes an anti-slip strip, which is arranged in the slide groove, along the length direction of the pull rod, and on the side of the pull rod facing the locking assembly, and is used to contact the locking block.

[0023] By adopting the above technical solution, by setting the anti-slip strip, when the anti-slip strip contacts the locking block, the friction encountered by the locking block when sliding in the locking groove can be enhanced, thereby increasing the resistance encountered by the locking block when sliding in the locking groove, making the pushing process slower, smoother and more precise.

[0024] In a specific feasible implementation scheme, the pull rod is provided with an adjustment knob, the connecting block is provided with an adjustment hole, the pull rod is provided with an adjustment slot, and the adjustment slot and the adjustment hole are used for inserting the adjustment knob; the adjustment assembly also includes an adjustment plate, the adjustment plate is provided with a mounting slot, the anti-slip strip is installed in the mounting slot, the adjustment plate is provided with an adjustment rod on the side facing away from the mounting slot, an adjustment block is installed on the adjustment rod, and the side of the adjustment block close to the adjustment knob is inclined toward the side close to the mounting slot.

[0025] By adopting the above technical solution, by turning the adjusting knob, the adjusting knob pushes the adjusting plate toward the side close to the locking block, and the adjusting plate drives the anti-slip strip to move toward the side close to the locking block.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. The convex pattern can increase the contact area between the first clamping arm and the second clamping arm and the bleeding site, thereby achieving a better clamping effect and making the clamping more stable;

[0028] 2. By setting a locking component, when the locking component locks the push block, the push block cannot be pushed. The push block can be pushed only after it is unlocked, thereby minimizing the occurrence of misoperation and making the operation more accurate;

[0029] 3. By setting the adjustment component, the user can adjust the thrust according to his own usage habits during operation, which helps to achieve better operating results. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0031] Figure 2 It is a schematic structural diagram of the clip in the embodiment of the present application.

[0032] Figure 3 It is a cross-sectional view of the internal structure of the conveying component in an embodiment of the present application.

[0033] Figure 4 It is a cross-sectional view of the internal structure of the locking assembly in an embodiment of the present application.

[0034] Figure 5 It is a structural diagram of the locking assembly in an embodiment of the present application.

[0035] Figure 6 It is a structural diagram of the locking block in an embodiment of the present application.

[0036] Figure 7 yes Figure 4 Enlarged view of point A in the middle.

[0037] Figure 8 This is an enlarged view of the locking assembly in the unlocked state.

[0038] Description of reference numerals:

[0039] 1. First clamping arm; 2. Second clamping arm; 3. Embossed pattern; 4. Conveying assembly; 41. Pull rod; 42. Push block; 421. Connecting block; 422. Push ring; 43. Connecting rod; 5. Locking assembly; 51. Locking block; 511. Pressing portion; 512. Sliding portion; 513. Connecting portion; 52. Pressing block; 53. Spring; 54. Limiting ring; 55. Sliding hole; 56. Block; 57. Mounting hole; 58. Slide groove; 59. Ring groove; 6. Elastic ring; 61. Avoidance groove; 7. Adjusting assembly; 71. Adjusting plate; 72. Adjusting knob; 73. Adjusting hole; 74. Adjusting groove; 75. Mounting groove; 77. Anti-slip strip; 78. Adjusting rod; 79. Adjusting block. DETAILED DESCRIPTION

[0040] The present application is further described in detail below with reference to the accompanying drawings.

[0041] The embodiment of the present application discloses a clip, referring to Figure 1 and Figure 2 The clamp includes a first clamp arm 1 and a second clamp arm 2, which are connected to each other. The inner walls of each of the first and second clamp arms 1 and 2 are provided with raised patterns 3. The raised patterns 3 are pressed against the outer sides of the first and second clamp arms 1 and 2 by a mold, forming protrusions on the inner sides of the first and second clamp arms 1 and 2. The raised patterns 3 are pyramidal, specifically quadrangular pyramidal in this embodiment. When the clamp clamps a bleeding area, the raised patterns 3 can contact the bleeding area, increasing the contact area between the clamp and the bleeding area, thereby increasing the contact area between the clamp and the bleeding area and making the clamping effect more stable.

[0042] Reference Figure 1 The present application also discloses a hemostatic clip, which includes the aforementioned clip and a delivery assembly 4. The delivery assembly 4 includes a pull rod 41, a push block 42, and a connecting rod 43. One end of the connecting rod 43 is connected to the clip and the other end is fixed to the push block 42. The push block 42 is slidably mounted on the pull rod 41. By pushing the push block 42 on the pull rod 41, the push block 42 drives the connecting rod 43 to move, and the connecting rod 43 drives the clip to move, thereby realizing the opening and closing of the clip.

[0043] Reference Figure 3 The push block 42 comprises a connecting block 421 that slides over the pull rod 41 and push rings 422 fixed to either side of the connecting block 421. The center of the connecting block 421 is recessed away from the push rings 422. During operation, the recessed center of the connecting block 421 provides support for the hand, minimizing the risk of the hand slipping off or separating from the connecting block 421. The push rings 422 also provide a more stable connection between the hand and the push block 42 during operation.

[0044] Reference Figure 3 The push block 42 is mounted with a locking assembly 5. In this embodiment, two sets of locking assemblies 5 are provided, each corresponding to a push ring 422. The locking assembly 5 is used to lock the push block 42. When unlocked, the push block 42 cannot be pushed. Only after the locking assembly 5 is unlocked by pressing the locking assembly 5 can the push block 42 be pushed. This minimizes accidental operation of the push block 42.

[0045] Reference Figure 4 and Figure 5The locking assembly 5 includes a locking block 51, a pressing block 52 and a spring 53. A limiting ring 54 is fixed on the outer wall of the connecting block 421. A sliding hole 55 is provided on the connecting block 421 inside the limiting ring 54. The locking block 51 is slidably installed in the sliding hole 55. A clamping block 56 is fixed on the limiting ring 54. The clamping block 56 is provided with a mounting hole 57. The pressing block 52 is slidably installed in the limiting ring 54. The clamping block 56 is used to limit the pressing block 52. The pressing block 52 is fixedly connected to the locking block 51. The spring 53 is arranged in the limiting ring 54 and is sleeved on the locking block 51. One end of the spring 53 contacts the connecting block 421, and the other end contacts the pressing block 52. A slide groove 58 is provided on the pull rod 41. The slide groove 58 is provided along the length direction of the pull rod 41, and the cross-section of the slide groove 58 is T-shaped.

[0046] Reference Figure 5 and Figure 6 The locking block 51 is provided with an annular groove 59, which divides the locking block 51 into a pressing portion 511, a sliding portion 512, and a connecting portion 513. The pressing portion 511 and the sliding portion 512 are fixedly connected by the connecting portion 513, and the sliding portion 512 can slide within the sliding groove 58. An elastic ring 6 is provided on the sliding portion 512. The end of the elastic ring 6 close to the pressing portion 511 is elastically connected to the sliding portion 512. The outer diameter of the end of the elastic ring 6 close to the pressing block 52 is larger than the outer diameter of the end away from the pressing block 52. The elastic ring 6 is provided with a plurality of avoidance grooves 61, specifically four in this embodiment. The avoidance grooves 61 are arranged at intervals along the circumference of the axis of the sliding portion 512. The avoidance grooves 61 are used to make way when the elastic ring 6 is compressed.

[0047] In the initial state, if Figure 7 As shown, the elastic ring 6 contacts the inner wall of the chute 58, and the force interaction between the elastic ring 6 and the bottom wall of the chute 58 limits the movement of the push block 42 on the pull rod 41. When the push block 42 needs to be moved during operation, as shown in FIG. Figure 8 As shown, the pressing block 52 is pressed inward, and the pressing block 52 compresses the spring 53. At the same time, the pressing block 52 drives the locking block 51 to move into the slide groove 58, so that the sliding part 512 enters the slide groove 58, and then pushes the push block 42 to move on the pull rod 41, thereby avoiding misoperation of the push block 42 as much as possible.

[0048] Reference Figure 4 and Figure 5The pull rod 41 is provided with an adjustment assembly 7. In this embodiment, there are two adjustment assemblies 7, one corresponding to each locking assembly 5. The adjustment assembly 7 includes an adjustment plate 71 and an anti-slip strip 77. The pull rod 41 also defines a mounting slot 75, which communicates with the slide slot 58. The adjustment plate 71 slides within the mounting slot 75. The side of the adjustment plate 71 facing the locking assembly 5 defines an anti-slip groove (not shown). The anti-slip strip 77 is fixedly mounted within the anti-slip groove. The anti-slip strip 77 is made of rubber.

[0049] Reference Figure 5 The end of the adjustment plate 71 away from the anti-slip strip 77 is fixed with an adjustment rod 78, and the end of the adjustment rod 78 away from the adjustment plate 71 is fixed with an adjustment block 79. The pull rod 41 is provided with an adjustment slot 74, combined with Figure 3 The adjustment slot 74 extends along the length of the pull rod 41. The connecting block 421 is provided with an adjustment hole 73, within which is an adjustment knob 72. Both the adjustment hole 73 and the adjustment slot 74 are designed to receive the adjustment knob 72, which is threadedly connected to the adjustment hole 73. The adjustment knob 72 is positioned perpendicular to the axis of the connecting block 421 and is positioned between the two adjustment assemblies 7. The adjustment block 79 has an inclined surface on the side facing the adjustment knob 72, with the side of the inclined surface near the adjustment hole 73 tilting toward the side near the adjustment rod 78.

[0050] Reference Figure 4 and Figure 5 By rotating the adjustment knob 72 and moving it into the pull rod 41, the adjustment knob 72 pushes the adjustment blocks 79 away from it. The adjustment blocks 79, via the adjustment rod 78, drive the adjustment plate 71 toward the locking assembly 5, thereby driving the anti-slip strip 77 toward the locking assembly 5. When the locking block 51 contacts the anti-slip strip 77, the friction between them increases, increasing the resistance to movement of the locking block 51 within the chute 58. This helps ensure more precise movement of the connecting block 421 during operation. By further rotating the adjustment knob 72 into the pull rod 41, when the locking block 51 abuts the anti-slip strip 77, the combined action of the pressing block 52 and the adjustment plate 71 restricts the movement of the locking block 51 within the chute 58, thereby restricting the movement of the push block 42.

[0051] The operating principle of the embodiment of the present application is as follows: before use, turn the adjustment knob 72 to adjust the position of the adjustment frame and the anti-slip strip 77. After the adjustment is completed, the operator presses the pressing block 52 with his hand, causing the sliding portion 512 to enter the slide groove 58, and pushes or pulls the push block 42, causing the push block 42 to move along the length of the pull rod 41. The push block 42 drives the connecting rod 43 to move, thereby driving the clamp to open and close. After releasing the pressing block 52, the spring 53 resets the locking block 51 and the pressing block 52, causing the inner wall of the slide groove 58 to contact the elastic ring 6, limiting the sliding of the sliding portion 512 in the slide groove 58 and minimizing the occurrence of misoperation.

[0052] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A hemostatic clip, characterized in that: A clip is provided, the clip comprising a first clip arm (1) and a second clip arm (2), the first clip arm (1) and the second clip arm (2) being connected, the inner walls of the first clip arm (1) and the second clip arm (2) being provided with convex patterns (3), the convex patterns (3) being used to contact the bleeding site; It also includes a conveying assembly (4), the conveying assembly (4) includes a pull rod (41), a push block (42) and a connecting rod (43), one end of the connecting rod (43) is connected to the clip, and the other end of the connecting rod (43) is connected to the push block (42), the push block (42) is slidably mounted on the pull rod (41), and the push block (42) is provided with a locking assembly (5); The push block (42) includes a connecting block (421) slidably mounted on the pull rod (41) and a push ring (422) mounted on both sides of the push block (42); a sliding groove (58) is provided on the connecting block (421); the locking assembly (5) includes a locking block (51), a pressing block (52) and a spring (53); the locking block (51) is slidably mounted in the sliding groove (58); a locking groove is provided on the pull rod (41); the locking groove is used to limit the locking block (51); the spring (53) is sleeved on the locking block (51); the pressing block (52) is connected to the locking block (51); one end of the spring (53) contacts the connecting block (421) and the other end contacts the pressing block (52); an annular groove (59) is provided on the locking block (51); the annular groove (59) is used to make the locking block (51) slide in the locking groove; An elastic ring (6) is provided on the locking block (51), and one end of the elastic ring (6) close to the pressing block (52) is connected to the locking block (51), and the outer diameter of the end of the elastic ring (6) close to the pressing block (52) is larger than the outer diameter of the end away from the pressing block (52); The elastic ring (6) is provided with a plurality of avoidance grooves (61), and the avoidance grooves (61) are arranged at intervals along the circumference of the axis of the locking block (51); The pull rod (41) is provided with an adjustment component (7), and the adjustment component (7) is used to adjust the thrust of the push block (42).

2. The hemostatic clip according to claim 1, characterized in that: The convex pattern (3) is in the shape of a pyramid.

3. The hemostatic clip according to claim 1, characterized in that: The middle portion of the side wall of the connecting block (421) facing the push ring (422) is recessed toward a side away from the push ring (422).

4. The hemostatic clip according to claim 1, characterized in that: The adjustment assembly (7) includes an anti-slip strip (77), which is arranged in the slide groove (58), and the anti-slip strip (77) is arranged along the length direction of the pull rod (41). The anti-slip strip (77) is arranged on the side of the pull rod (41) facing the locking assembly (5), and the anti-slip strip (77) is used to contact the locking block (51).

5. The hemostatic clip according to claim 4, characterized in that: The pull rod (41) is provided with an adjusting knob (72), the connecting block (421) is provided with an adjusting hole (73), the pull rod (41) is provided with an adjusting slot (74), and the adjusting slot (74) and the adjusting hole (73) are used for inserting the adjusting knob (72); the adjusting assembly (7) also includes an adjusting plate (71), the adjusting plate (71) is provided with a mounting slot (75), the anti-slip strip (77) is installed in the mounting slot (75), the adjusting plate (71) is provided with an adjusting rod (78) on the side away from the mounting slot (75), and an adjusting block (79) is installed on the adjusting rod (78), and the side of the adjusting block (79) close to the adjusting knob (72) is inclined toward the side close to the mounting slot (75).

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