Double-layer closing clamp of absorbable and non-absorbable material mixed molding structure

Abstract

The utility model relates to a double-layer closing clamp of an absorbable and non-absorbable material mixed molding structure, which comprises at least two closing clamp units arranged side by side left and right, each closing clamp unit comprises an upper clamping arm and a lower clamping arm, the rear ends of the upper clamping arm and the lower clamping arm on the same side are fixedly connected, and the front ends of the upper clamping arm and the lower clamping arm are mutually locked through a locking structure; the two adjacent upper clamping arms are fixedly connected through connecting blocks, and the two adjacent lower clamping arms are fixedly connected through connecting blocks. Wherein at least one closing clamp unit is made of absorbable and degradable materials, and at least one closing clamp unit is made of non-absorbable materials. The utility model aims to provide a double-layer closing clamp with a structure formed by mixing absorbable and non-absorbable materials. The utility model has the advantages that on the basis of the absorbable and degradable material, the non-absorbable material closing clamp which is stronger and more stable in performance is added through the injection molding process, and the problems that the closing clamp product made of the absorbable and degradable material is easy to break and slip due to insufficient strength are effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, specifically a double-layer closed clip with a mixed structure of absorbable and non-absorbable materials. Background Technology

[0002] In modern surgery, vascular ligation can be achieved by closing the vessel with a clamp or by suturing it with surgical sutures. Using surgical sutures for vascular ligation requires complex manipulation of the needle and suture to form the necessary knot. This complex procedure is time-consuming and demands a high level of skill from the surgeon, especially in endoscopic surgery where space and visibility are limited. In contrast, clamps are relatively easy and quick to apply. Therefore, the use of clamps in surgical endoscopic procedures has increased dramatically.

[0003] Currently, polymer clips and metal clips are increasingly used in clinical practice due to their simple manufacturing process and low cost. In practice, two or more clips are typically placed on the patient's side, with one clip pre-placed on the excised side; a single surgery may use as many as 30 clips. Because polymer clips and metal clips are non-degradable materials, they remain permanently in the body after implantation, affecting normal life after recovery. Therefore, increasingly more absorbable and biodegradable clips are being used clinically, as they degrade and are absorbed over time after surgery.

[0004] Defects in existing technology and their causes:

[0005] In the current technological context, absorbable and biodegradable clips are increasingly used clinically. These clips need to balance biodegradability with clinical strength requirements, posing a risk of performance degradation, breakage, or slippage after implantation. To ensure postoperative stability, doctors typically apply at least three clips to the ligated tissue or blood vessel, two proximal to the heart. This multiple application of clips requires repeated access to the abdominal cavity, undoubtedly consuming significant time. This poses a substantial risk to patient safety and also places considerable pressure on doctors in the application of absorbable and biodegradable clips. Summary of the Invention

[0006] The purpose of this invention is to provide a double-layer closure clip with a mixed structure of absorbable and non-absorbable materials, which can effectively avoid the problems of insufficient strength, easy breakage and slippage of closure clips made of absorbable and degradable materials.

[0007] The objective of this utility model is achieved through the following technical solution: a double-layer closed clamp with a mixed structure of absorbable and non-absorbable materials, comprising at least two closed clamp units arranged side by side, each closed clamp unit comprising an upper clamp arm and a lower clamp arm, the rear ends of the upper clamp arm and the lower clamp arm on the same side being fixedly connected, and their front ends being locked to each other by a locking structure; and two adjacent upper clamp arms and two adjacent lower clamp arms being fixedly connected by a connecting block; wherein at least one closed clamp unit is made of absorbable and degradable material, and at least one closed clamp unit is made of non-absorbable material.

[0008] Furthermore, two closure clamp units are provided, one of which is made of absorbable and degradable material, and the other is made of non-absorbable material.

[0009] Furthermore, the closing clamp unit is spaced apart on the left and right, and strip-shaped through grooves extending forward and backward are formed between the two upper clamping arms and between the two lower clamping arms, respectively.

[0010] Furthermore, two connecting blocks are provided between the two upper clamping arms and between the two lower clamping arms, with a front-to-back spacing.

[0011] Furthermore, a limiting groove is provided on the front clamping surface of the upper clamping arm, and a limiting baffle that cooperates with the limiting groove is provided on the front clamping surface of the lower clamping arm.

[0012] Furthermore, the front end of the upper clamping arm is provided with a barb, and the front end of the lower clamping arm is provided with a locking head that cooperates with the barb.

[0013] Furthermore, anti-slip textures are provided on the clamping surfaces of both the upper and lower clamping arms.

[0014] Furthermore, connecting blocks are provided between the side walls of the rear parts of the two upper clamping arms and between the side walls of the rear parts of the two lower clamping arms. The front end back of the upper and lower clamping arms are provided with clamping gripping posts. The clamping gripping posts on adjacent upper clamping arms are connected to each other, and the clamping gripping posts on adjacent lower clamping arms are connected to each other.

[0015] Furthermore, the non-absorbable material is a polymer material or a metallic material.

[0016] Compared with the prior art, the advantages of this utility model are:

[0017] 1. This utility model adds a non-absorbable material closure clip with stronger and more stable performance through injection molding on the basis of absorbable and degradable material, which effectively avoids the problem of easy breakage and slippage caused by insufficient strength of absorbable and degradable material closure clip products.

[0018] 2. After the product is closed, it achieves the same clamping effect as two separate clamping clips, saving time for secondary installation of the clamping clips.

[0019] 3. The strip grooves between the closed clamping units form an outward-expanding tissue block after clamping, increasing the contact area with the tissue and effectively avoiding problems such as insufficient strength and slippage after the product is installed and closed.

[0020] 4. The double-arm design increases the product's surface area and anti-slip force, while reducing the requirements for material strength.

[0021] 5. During postoperative recovery, the absorbable portion of the implant will degrade over time, reducing residual foreign bodies and improving the patient's quality of life after surgery.

[0022] 6. The mixed use of absorbable and non-absorbable materials reduces the amount of absorbable materials used, lowers the price of the closure clip, and reduces the burden on patients. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a double-layer closed clip with a mixed structure of absorbable and non-absorbable materials according to the present invention.

[0024] Figure 2 yes Figure 1 A schematic diagram of a double-layer closed clamp with a mixed structure of absorbable and non-absorbable materials from another perspective.

[0025] Figure 3 This is a schematic diagram of the usage status of a double-layer closed clamp with a mixed structure of absorbable and non-absorbable materials (early stage).

[0026] Figure 4 yes Figure 3 A cross-sectional schematic diagram.

[0027] Figure 5 This is a schematic diagram of the usage state of a double-layer closed clamp with a mixed structure of absorbable and non-absorbable materials (to be continued).

[0028] Figure 6 yes Figure 5 A cross-sectional schematic diagram.

[0029] Labeling explanation: 1 Closing clamp unit, 1-1 Upper clamp arm, 1-2 Lower clamp arm, 1-3 Limiting groove, 1-4 Limiting baffle, 1-5 Eagle beak barb, 1-6 Lock head, 1-7 Anti-slip texture, 1-8 Applicator gripping column, 2 Connecting block, 3 Strip through groove, 4 Tubular tissue or blood vessel. Detailed Implementation

[0030] The present invention will now be described in detail with reference to the accompanying drawings and embodiments:

[0031] like Figures 1 to 6The diagram shown is a schematic representation of an embodiment of a double-layer closed clip with a mixed structure of absorbable and non-absorbable materials provided by this utility model.

[0032] A double-layered closure clip with a mixed structure of absorbable and non-absorbable materials includes at least two closure clip units 1 arranged side by side. Each closure clip unit 1 includes an upper clamping arm 1-1 and a lower clamping arm 1-2. The rear ends of the upper clamping arm 1-1 and the lower clamping arm 1-2 on the same side are fixedly connected, and their front ends are locked to each other by a locking structure. Furthermore, two adjacent upper clamping arms 1-1 and two adjacent lower clamping arms 1-2 are fixedly connected by a connecting block 2. At least one closure clip unit 1 is made of absorbable and degradable material, and at least one closure clip unit 1 is made of non-absorbable material.

[0033] In this embodiment, two closing clamp units 1 are provided, one of which is made of absorbable and degradable material, and the other is made of non-absorbable material.

[0034] The closing clamp unit 1 can also be provided in three parts, wherein the middle closing clamp unit 1 is made of absorbable and degradable material, and the two closing clamp units 1 on both sides are made of non-absorbable material; or the middle closing clamp unit 1 is made of non-absorbable material, and the two closing clamp units 1 on both sides are made of absorbable and degradable material.

[0035] The closed clamping unit 1 is arranged at intervals on the left and right, and the two upper clamping arms 1-1 and the two lower clamping arms 1-2 respectively form strip-shaped through grooves extending forward and backward.

[0036] The upper clamping arm 1-1 has a limiting groove 1-3 on its front clamping surface, and the lower clamping arm 1-2 has a limiting baffle 1-4 that cooperates with the limiting groove 1-3 on its front clamping surface.

[0037] The front end of the upper clamping arm 1-1 is provided with a beak-shaped barb 1-5, and the front end of the lower clamping arm 1-2 is provided with a lock head 1-6 that cooperates with the beak-shaped barb 1-5.

[0038] When closed, the limiting baffle 1-4 slides into the corresponding limiting groove 1-3, so that the clamping arm will not be misaligned and pop open when closed; the eagle beak barb 1-5 and the lock head 1-6 have an inclined surface on their mating surface, which makes it easy for the eagle beak barb to slide into the lock head, so that the closing clamp is closed.

[0039] The clamping surfaces of the upper clamping arm 1-1 and the lower clamping arm 1-2 are both provided with anti-slip textures 1-7.

[0040] In one embodiment, two connecting blocks 2 are provided between the two upper clamping arms 1-1 and between the two lower clamping arms 1-2, with a front-to-back spacing. The provision of multiple connecting blocks 2 between the same clamping arms can increase the stability of the connection between the closed clamping units 1, while the front-to-back spacing of the connecting blocks 2 can provide sufficient space for the strip-shaped through groove 3 to accommodate tubular tissues or blood vessels.

[0041] In another embodiment, a connecting block 2 is provided between the rear side walls of the two upper clamping arms 1-1 and between the rear side walls of the two lower clamping arms 1-2. The front end back of the upper clamping arms 1-1 and the lower clamping arms 1-2 are provided with clamping gripping posts 1-8. The clamping gripping posts 1-8 on adjacent upper clamping arms 1-1 are connected to each other, and the clamping gripping posts 1-8 on adjacent lower clamping arms 1-2 are connected to each other.

[0042] Replacing the front connecting block 2 in the previous embodiment with the clamp gripping column 1-8 can effectively simplify the product structure, allowing the clamp gripping column 1-8 to be used with the clamp and also connected to the closing clamp unit 1.

[0043] The non-absorbable material is a polymer or a metal.

[0044] like Figures 3-4 As shown, when the clamping device is applied, the barbs 1-5 slide into the locking head 1-6, clamping tubular tissue or blood vessels. Due to its double-layer closed clamp structure, with the double-layer closed clamps having the same thickness, the effective clamping area is increased, as are the clamping strength and anti-slip force.

[0045] Because the closure clamp unit 1 is provided with a strip-shaped through groove 3, a huge cavity is formed at the position of the strip-shaped through groove 3 when clamping. The compressed tubular tissue or blood vessel enters the cavity and can block the relative displacement of the closure clamp, thereby increasing the anti-slip force of the closure clamp.

[0046] like Figures 5-6 As shown, over time, the closed-clamped tissue or blood vessel heals, and the absorbable and degradable material degrades until it disappears completely, leaving only non-absorbable material remaining in the closed-clamped tissue or blood vessel.

Claims

1. A double-layer closed clip with a mixed structure of absorbable and non-absorbable materials, characterized in that: It includes at least two closed clamping units (1) arranged side by side, each closed clamping unit (1) includes an upper clamping arm (1-1) and a lower clamping arm (1-2), the rear ends of the upper clamping arm (1-1) and the lower clamping arm (1-2) on the same side are fixedly connected, and their front ends are locked to each other by a locking structure; and the two adjacent upper clamping arms (1-1) and the two adjacent lower clamping arms (1-2) are fixedly connected by a connecting block (2); At least one of the closed clamping units (1) is made of absorbable and degradable material, and at least one of the closed clamping units (1) is made of non-absorbable material.

2. The double-layer closed clip with a mixed structure of absorbable and non-absorbable materials according to claim 1, characterized in that: Two closing clamp units (1) are provided, one of which is made of absorbable and degradable material, and the other is made of non-absorbable material.

3. The double-layer closed clip with a mixed structure of absorbable and non-absorbable materials according to claim 2, characterized in that: The closed clamp unit (1) is spaced apart on the left and right, and the two upper clamp arms (1-1) and the two lower clamp arms (1-2) respectively form a strip-shaped through groove (3) extending in front and behind.

4. The double-layer closed clip with a mixed structure of absorbable and non-absorbable materials according to claim 3, characterized in that: Two connecting blocks (2) are provided between the two upper clamping arms (1-1) and between the two lower clamping arms (1-2) at intervals.

5. The double-layer closed clip with a mixed structure of absorbable and non-absorbable materials according to claim 1, characterized in that: The upper clamping arm (1-1) has a limiting groove (1-3) on its front clamping surface, and the lower clamping arm (1-2) has a limiting baffle (1-4) that cooperates with the limiting groove (1-3) on its front clamping surface.

6. The double-layer closed clip with a mixed structure of absorbable and non-absorbable materials according to claim 1, characterized in that: The front end of the upper clamping arm (1-1) is provided with a barb (1-5), and the front end of the lower clamping arm (1-2) is provided with a lock head (1-6) that cooperates with the barb (1-5).

7. The double-layer closed clip with a mixed structure of absorbable and non-absorbable materials according to claim 1, characterized in that: The clamping surfaces of the upper clamping arm (1-1) and the lower clamping arm (1-2) are provided with anti-slip textures (1-7).

8. The double-layer closed clip with a mixed structure of absorbable and non-absorbable materials according to claim 1, characterized in that: A connecting block (2) is provided between the rear side walls of the two upper clamping arms (1-1) and between the rear side walls of the two lower clamping arms (1-2). The front back of the upper clamping arms (1-1) and the lower clamping arms (1-2) are provided with clamping gripping posts (1-8). The clamping gripping posts (1-8) on adjacent upper clamping arms (1-1) are connected to each other, and the clamping gripping posts (1-8) on adjacent lower clamping arms (1-2) are connected to each other.

9. The double-layer closed clip with a mixed structure of absorbable and non-absorbable materials according to claim 1, characterized in that: The non-absorbable material is a polymer or a metal.

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