Absorbable closing clamp with tension enhancing structure

Abstract

The utility model relates to the technical field of absorbable closing clamps, in particular to an absorbable closing clamp with a tension enhancing structure. The clamp comprises an upper clamp arm and a lower clamp arm which are correspondingly arranged up and down, the connecting end of the upper clamp arm and the connecting end of the lower clamp arm are connected into a whole through a connecting bent part, and the closed end of the upper clamp arm and the closed end of the lower clamp arm are far away from each other; a tension enhancing part is arranged on the outer ring of the connecting bent part, the two ends of the tension enhancing part extend to be connected with the connecting end of the upper clamping arm and the connecting end of the lower clamping arm respectively, and the tension enhancing part and the connecting bent part are separated from each other to form a gap. The device is compact and reasonable in structure, convenient to operate and reliable to use; the tension enhancing part can enable the absorbable closing clip to have the opening tension required for opening and fixing, so that the absorbable closing clip is not easy to fall off when being assembled with the clip applier.

Description

Technical Field

[0001] The utility model relates to the technical field of absorbable closure clips, in particular to an absorbable closure clip with a tension enhancement structure. Background Art

[0002] Closure clips, also known as vascular clamps and ligation clips, are medical devices used to clamp blood vessels and ducts during surgical procedures. They are typically made of metal or polymer materials. The most classic of these is the V-shaped clip, which has been in clinical use for over 20 years. It not only provides the crucial, locking, and closure function, but also integrates with the semicircular recess of the clip applier, making opening, closing, clamping, and removing simple and reliable. This is due in part to the V-shaped clip's perfect and rational structure. Furthermore, the polymer biomaterial polyoxymethylene (POM) used in the V-shaped clip, when injection-molded, provides the clip head with strong rigidity for locking and the arms with strong elasticity to support and secure it within the semicircular recess of the clip applier head. However, POM is a non-biodegradable material. Studies have shown that long-term indwelling of biomaterials (over 15 years) carries the risk of chronic infection-induced mutations and adverse outcomes. Therefore, there is an urgent need for absorbable clips with the properties of the V-shaped clip.

[0003] However, existing absorbable biomaterials worldwide lack the combined rigidity and elasticity of POM. Some materials that meet the requirements for degradation time, production cost, and stability exhibit either strong rigidity with weak elasticity or weak rigidity with strong elasticity. Existing absorbable clips, while ensuring elasticity for opening, closing, clamping, and unclamping, lack the protruding locking feature clinically required for safety and identification. Consequently, the long-standing lack of an ideal absorbable closure clip has forced the continued use of non-absorbable V-clip as the preferred method of choice. Utility Model Content

[0004] In response to the shortcomings of the above-mentioned existing production technology, the present invention provides an absorbable closing clip with a tension enhancement structure, which can enable the strong and weak elastic absorbable closing clip to have the expansion tension required for expansion and fixation, so that the absorbable closing clip is not likely to fall off when assembled with the clip applier.

[0005] The technical solutions adopted in this utility model are as follows:

[0006] An absorbable closing clamp with a tension-enhancing structure comprises an upper clamp arm and a lower clamp arm correspondingly arranged above and below, wherein the connecting end of the upper clamp arm and the connecting end of the lower clamp arm are connected into one piece by a connecting bend, and the closed end of the upper clamp arm and the closed end of the lower clamp arm are far away from each other; a tension-enhancing portion is provided on the outer circle of the connecting bend, and the two ends of the tension-enhancing portion extend to connect the connecting end of the upper clamp arm and the connecting end of the lower clamp arm respectively, and the tension-enhancing portion and the connecting bend are disengaged from each other to form a gap.

[0007] Furthermore, the tension reinforcement portion, the upper clamping arm, the lower clamping arm and the connecting bend are integrally injection-molded using biomaterials that can be absorbed by the human body.

[0008] Furthermore, a buckle groove is provided at the closed end of the upper clamping arm, and an undercut is provided at the closed end of the lower clamping arm, and the undercut can be buckled and connected in the buckle groove.

[0009] Furthermore, an upper mounting column is transversely arranged at the closed end of the upper clamping arm, an avoidance groove for avoiding the undercut is arranged in the middle of the upper mounting column, and a lower mounting column is transversely arranged at the closed end of the lower clamping arm.

[0010] Furthermore, an arc-shaped deformation groove is provided on the inner side of the connecting bend.

[0011] Furthermore, a plurality of raised upper bite teeth are provided on the end surface of the upper clamping arm facing the lower clamping arm, and the plurality of upper bite teeth are distributed in two rows, and the two rows of upper bite teeth are staggered with each other. A plurality of raised lower bite teeth are provided on the end surface of the lower clamping arm facing the upper clamping arm, and the plurality of lower bite teeth are distributed in two rows, and the two rows of lower bite teeth are staggered with each other.

[0012] The beneficial effects of the utility model are as follows:

[0013] The utility model has a compact and reasonable structure, is easy to operate and reliable to use; the tension enhancement portion can allow the absorbable closing clip to have the expansion tension required for expansion and fixation, so that the absorbable closing clip is not likely to fall off when assembled with the clip applier. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural diagram of the utility model in an expanded state.

[0015] Figure 2 This is a structural diagram of the utility model in a closed state.

[0016] Figure 3 This is a schematic diagram of the utility model being applied to clip appliers.

[0017] Among them: 1. Upper clamping arm; 2. Lower clamping arm; 3. Connecting bend; 4. Tension enhancement part; 5. Deformation groove; 6. Upper bite teeth; 7. Lower bite teeth; 8. Snap-fit ​​groove; 9. Undercut; 10. Upper mounting column; 11. Lower mounting column; 12. Avoidance groove; 13. Clamp applier. DETAILED DESCRIPTION

[0018] The specific implementation of the present utility model will be described below with reference to the accompanying drawings.

[0019] like Figure 1 and Figure 2As shown, an absorbable closing clamp with a tension-enhancing structure includes an upper clamp arm 1 and a lower clamp arm 2 correspondingly arranged above and below, the connecting end of the upper clamp arm 1 and the connecting end of the lower clamp arm 2 are connected into one body through a connecting bend 3 with a circular arc structure, and the upper clamp arm 1, the lower clamp arm 2 and the connecting bend 3 are integrally injection-molded using biomaterials that can be absorbed by the human body.

[0020] like Figure 1 and Figure 2 As shown, the closed end of the upper clamping arm 1 and the closed end of the lower clamping arm 2 are away from each other to form a V-shaped structure. The closed end of the upper clamping arm 1 is provided with a snap-fit ​​groove 8, and the closed end of the lower clamping arm 2 is provided with an undercut 9, which can be snap-fitted and connected in the snap-fit ​​groove 8.

[0021] like Figure 1 and Figure 2 As shown, an upper mounting post 10 is disposed transversely at the closed end of the upper clamp arm 1, and a clearance groove 12 for avoiding the undercut 9 is disposed in the middle of the upper mounting post 10, and a lower mounting post 11 is disposed transversely at the closed end of the lower clamp arm 2. Figure 3 As shown, when the closing clip and the clip applier are assembled, the upper mounting post 10 of the closing clip is snap-fitted into the upper mounting groove of the clip applier, and the lower mounting post 11 of the closing clip is snap-fitted into the lower mounting groove of the clip applier.

[0022] like Figure 1 and Figure 2 As shown, an arc-shaped deformation groove 5 is provided inside the connecting bend 3. When the upper clamping arm 1 and the lower clamping arm 2 are closed, the deformation groove 5 can accommodate the inward extrusion deformation of the connecting bend 3, so that the upper clamping arm 1 and the lower clamping arm 2 can be closed smoothly.

[0023] like Figure 1 and Figure 2 As shown, the outer ring of the connecting bend 3 is provided with an arc-shaped tension-enhancing portion 4. The two ends of the tension-enhancing portion 4 extend to connect to the connection ends of the upper clamping arm 1 and the lower clamping arm 2, respectively. The tension-enhancing portion 4, the upper clamping arm 1, the lower clamping arm 2, and the connecting bend 3 are integrally injection-molded using a biomaterial that can be absorbed by the human body. The tension-enhancing portion 4 and the connecting bend 3 are separated from each other, forming a gap.

[0024] During use, the tension-enhancing portion 4 pulls the connecting ends of the upper and lower clamping arms 1 and 2, allowing the closed ends of the upper and lower clamping arms 1 and 2 to elastically open. When the upper and lower clamping arms 1 and 2 of the closing clamp are subjected to pressure in the closing direction of the clamp jaws, the elasticity at both ends of the tension-enhancing portion 4 pulls the upper and lower clamping arms 1 and 2 outward, thereby increasing the tension of the upper and lower clamping arms 1 and 2, i.e., the tension of the clamp, to keep the upper and lower mounting posts of the closing clamp open and fixed within the upper and lower mounting slots of the clamp applier, preventing the clamp from falling out during the opening and closing of the clamp outside the closed lock state. Adjusting the width and thickness of the tension-enhancing portion 4 can adjust the tension-enhancing range.

[0025] like Figure 1 and Figure 2 As shown, the upper clamp arm 1 is provided with a plurality of raised upper engaging teeth 6 on the end surface facing the lower clamp arm 2. The plurality of upper engaging teeth 6 are arranged in two rows, and the upper engaging teeth 6 in the two rows are staggered. The lower clamp arm 2 is provided with a plurality of raised lower engaging teeth 7 on the end surface facing the upper clamp arm 1. The plurality of lower engaging teeth 7 are arranged in two rows, and the lower engaging teeth 7 in the two rows are staggered. During use, the upper clamp arm 1 and the lower clamp arm 2 clamp the human tissue and blood vessels. The upper engaging teeth 6 and the lower engaging teeth 7 can clamp the human tissue and blood vessels, ensuring that the human tissue and blood vessels will not move relative to the clamp after the clamp has clamped the human tissue and blood vessels.

[0026] The above description is an explanation of the utility model, not a limitation of the utility model. The scope of the utility model is defined by the claims. Any form of modification can be made within the scope of protection of the utility model.

Claims

1. An absorbable closure clamp with a tension-enhancing structure, comprising an upper clamp arm (1) and a lower clamp arm (2) arranged correspondingly above and below, characterized in that: The connecting end of the upper clamp arm (1) and the connecting end of the lower clamp arm (2) are connected into one piece via a connecting bend (3), and the closed end of the upper clamp arm (1) and the closed end of the lower clamp arm (2) are away from each other; a tension enhancement portion (4) is provided on the outer ring of the connecting bend (3), and the two ends of the tension enhancement portion (4) extend to connect the connecting end of the upper clamp arm (1) and the connecting end of the lower clamp arm (2), respectively, and the tension enhancement portion (4) and the connecting bend (3) are disengaged from each other to form a gap.

2. The absorbable closure clip with a tension-enhancing structure according to claim 1, wherein: The tension-enhancing portion (4), the upper clamping arm (1), the lower clamping arm (2) and the connecting bend (3) are integrally injection-molded using a biomaterial that can be absorbed by the human body.

3. The absorbable closure clip with a tension-enhancing structure according to claim 2, wherein: The closed end of the upper clamping arm (1) is provided with a buckle groove (8), and the closed end of the lower clamping arm (2) is provided with an undercut (9), and the undercut (9) can be buckled and connected in the buckle groove (8).

4. The absorbable closure clip with a tension-enhancing structure according to claim 3, wherein: An upper mounting column (10) is transversely arranged at the closed end of the upper clamping arm (1), a clearance groove (12) for avoiding the undercut (9) is arranged in the middle of the upper mounting column (10), and a lower mounting column (11) is transversely arranged at the closed end of the lower clamping arm (2).

5. The absorbable closure clip with a tension-enhancing structure according to claim 4, wherein: An arc-shaped deformation groove (5) is provided inside the connecting bend (3).

6. The absorbable closure clip with a tension-enhancing structure according to claim 5, wherein: A plurality of raised upper engaging teeth (6) are provided on the end surface of the upper clamping arm (1) facing the lower clamping arm (2), and the plurality of upper engaging teeth (6) are distributed in two rows, and the upper engaging teeth (6) in the two rows are staggered. A plurality of raised lower engaging teeth (7) are provided on the end surface of the lower clamping arm (2) facing the upper clamping arm (1), and the plurality of lower engaging teeth (7) are distributed in two rows, and the lower engaging teeth (7) in the two rows are staggered.

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