A wound traction closure device

Abstract

This invention discloses a wound tension closure device for assisting in the closure and healing of skin defects. The device includes a fixation plate, sutures, and suture needles. The bottom of the fixation plate has an adhesive layer for securing it to the skin around the wound. A central axis block and a rotating block are connected to the upper part. The sutures are connected to the sides of the rotating block, and barbs are evenly distributed along the sutures. An arc-shaped suture needle is connected to the end of the sutures. The sutures are made of absorbable material, are 8-15 cm long, and have a diameter of 2-3 mm. This invention achieves flexible wound closure through rapid suturing with suture needles. The barbs prevent suture slippage, and the absorbable material does not need to be removed, reducing patient discomfort. The device has a simple structure, is easy to operate, has a wide range of applications, and exhibits good biocompatibility and clinical applicability.

Description

Technical Field

[0001] This utility model relates to a wound tension closure device for assisting in the closure and healing of skin defects, and is particularly suitable for wounds with large areas or those that cannot be directly sutured. Background Technology

[0002] Skin defects are common and complex problems in surgical practice, usually caused by factors such as tumors, scars, trauma, inflammation, or skin lesions. For large skin defects, traditional direct suturing methods often fail to achieve effective closure, thus requiring the use of skin traction techniques to promote wound healing. The principle of skin traction is to reduce wound tension by pulling on the skin around the wound, thereby aiding wound healing and reducing scar formation. This method has been widely used in the treatment of various skin injuries.

[0003] Currently, various skin traction closure devices have been developed and applied clinically. However, existing technologies generally suffer from problems such as complex structure and cumbersome operation. Although many devices employ non-invasive or semi-invasive designs to simplify operation, they still have certain limitations and cannot fully meet clinical needs.

[0004] Taking Chinese patent CN115886915A as an example, this patent discloses a semi-invasive wound traction closure device. This device, through the barb design on the suture line, can accurately suture the wound in the optimal position, thereby achieving effective wound closure. However, this solution has significant drawbacks in practical application: after the skin patch is fixed, the starting angle of the suture line cannot be adjusted, resulting in insufficient operational flexibility and difficulty in adapting to wounds of different shapes and locations. Furthermore, the limited adjustment of the suture line's traction force and direction may affect the wound closure effect and patient comfort.

[0005] In summary, although existing technologies have solved the problem of skin traction closure to some extent, they still have shortcomings in terms of structural design, operational flexibility, and applicability. Therefore, there is an urgent need for a skin traction closure device that is simple in structure, flexible in operation, adaptable to wounds of different shapes and sizes, and provides stable traction force. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a wound tension closure device, which can simplify the suturing process, improve operational flexibility, reduce patient pain, and promote wound healing.

[0007] This utility model is achieved through the following scheme: a wound tension closure device, including a fixing plate, a suture line and a suture needle, wherein a central axis block is connected to the upper part of the fixing plate, the upper end of the central axis block is inserted and connected to a rotating cylinder block, the suture line is connected to the side of the rotating cylinder block, the suture line is connected to the suture needle, the bottom of the fixing plate is an adhesive layer, and a barb block is connected to the suture line.

[0008] The barbs are evenly distributed along the suture line.

[0009] The suture needle has an arc-shaped structure.

[0010] The fixing plate has a circular structure.

[0011] The rotating cylinder block rotates on the central shaft block, and the diameter of the rotating cylinder block is smaller than the diameter of the fixed plate.

[0012] The suture is made of absorbable material, and its length is 8-15cm and its diameter is 2-3mm.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. Simple and flexible operation: The rotating block can adjust the starting angle and pulling direction of the suture, adapting to wounds of different shapes and locations.

[0015] 2. Reduced pain: The sutures are made of absorbable material and do not need to be removed, reducing patient pain and the risk of infection.

[0016] 3. Secure fixation: The barbs on the suture line can effectively fix the edge of the wound, prevent the suture line from slipping, and ensure the wound closure effect.

[0017] 4. Wide range of applications: The sutures have a moderate length and diameter, making them suitable for wounds of different sizes.

[0018] 5. Good biocompatibility: The sutures are made of medical-grade absorbable material, which has good biocompatibility and can degrade naturally after the wound heals, avoiding the need for secondary surgery. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of a wound traction closure device according to the present invention.

[0020] Figure 2 This is a front view structural diagram of a wound tension closure device according to the present invention.

[0021] Figure 3 This is a top view schematic diagram of a wound tension closure device according to the present invention.

[0022] Figure 4This is a partial three-dimensional structural diagram of a wound traction closure device according to the present invention.

[0023] In the diagram: 100 is the fixing plate, 101 is the central axis block, 102 is the rotating cylinder block, 103 is the adhesive layer, 200 is the suture line, 201 is the barb block, and 300 is the suture needle. Detailed Implementation

[0024] The following is combined Figure 1-4 The present invention will be further described below, but the scope of protection of the present invention is not limited to the contents described herein.

[0025] Reference Figure 1-4 A wound tension closure device includes a fixation plate 100, a suture 200, and a suture needle 300.

[0026] Fixing plate 100: The fixing plate 100 has a circular structure and an adhesive layer 103 at the bottom for fixing the device to the skin around the wound. The upper part of the fixing plate 100 is connected to the central shaft block 101, and the upper end of the central shaft block 101 is inserted into and connected to the rotating cylinder block 102.

[0027] The adhesive layer 103 is made of medical-grade pressure-sensitive adhesive material, which has good biocompatibility and adhesion properties, and can firmly adhere to the skin surface while avoiding irritation or damage to the skin.

[0028] The adhesive layer 103 has a multi-layer composite structure, including a base layer, an adhesive layer, and a protective film. The base layer is a flexible polymer material to ensure a tight fit between the adhesive layer 103 and the fixing plate 100; the adhesive layer is a pressure-sensitive adhesive to provide stable adhesion; the protective film is removed before use to prevent contamination or failure of the adhesive layer.

[0029] Rotating cylinder block 102: The diameter of rotating cylinder block 102 is smaller than the diameter of fixed plate 100, and it can rotate on central shaft block 101. The side of rotating cylinder block 102 is connected with stitching line 200.

[0030] Suture 200: The suture 200 is made of absorbable material, with a length of 8-15cm and a diameter of 2-3mm. Evenly distributed barbs 201 are arranged on the suture 200 to secure the wound edges and prevent slippage.

[0031] Specific description of the absorbable material: Suture 200 is made of medical-grade absorbable polymer materials, such as polylactic acid (PLA), polyglycolic acid (PGA), or copolymers of both (PLGA). These materials have good biocompatibility, gradually degrade and be absorbed by the body, eliminating the need for secondary surgery for removal. The absorption period of suture 200 can be adjusted according to the wound healing time, typically 2-4 weeks, ensuring sufficient support during the wound healing process.

[0032] Suture needle 300: The suture needle 300 has an arc-shaped structure, which is easy to operate and can easily pass through the skin on both sides of the wound.

[0033] Choose suture lengths according to the size of the wound.

[0034] For small wounds: Shorter sutures such as 200 (e.g., 8cm) can be selected.

[0035] Large wounds: For large wounds, a longer suture, such as 200 (e.g., 15cm), can be selected.

[0036] The fixation plate 100 is made of medical-grade silicone material, which has good flexibility and biocompatibility and can adapt to irregular shapes on the skin surface.

[0037] The 200 suture is made of PLGA material, which has a controllable degradation rate and can provide stable support during wound healing.

[0038] The barb block 201 is made of the same material as the suture 200 and is integrally molded through injection molding to ensure the strength and durability of the barb.

[0039] Working principle

[0040] The fixation plate 100 is fixed to the skin around the wound by the adhesive layer 103 at the bottom.

[0041] The operator holds a 300mm suture needle, passes it through the edge of the wound, and performs the suturing operation.

[0042] The barb 201 on the suture 200 fixes the edge of the wound and prevents the suture from slipping. At the same time, the rotation of the rotating cylinder block 102 achieves the stretching closure of the wound.

[0043] The 200 sutures are made of absorbable material and do not need to be removed, reducing patient pain and the risk of infection.

[0044] This device provides a wound traction closure device that is easy to operate, securely fixed, and reduces patient pain. It is suitable for closure and healing assistance of various wounds and has broad application prospects.

[0045] Although the technical solutions of this utility model have been described and enumerated in detail, it should be understood that modifications to the above embodiments or the adoption of equivalent alternatives are obvious to those skilled in the art. Such modifications or improvements made without departing from the spirit of this utility model are all within the scope of protection claimed by this utility model.

Claims

1. A wound traction closure device, characterized in that, The device includes a fixing plate (100), a suture (200), and a suture needle (300). The upper part of the fixing plate (100) is connected to a central shaft block (101). The upper end of the central shaft block (101) is inserted into and connected to a rotating cylinder block (102). The side of the rotating cylinder block (102) is connected to the suture (200). The suture (200) is connected to the suture needle (300). The bottom of the fixing plate (100) is an adhesive layer (103). A barb block (201) is connected to the suture (200).

2. The wound traction closure device according to claim 1, characterized in that, The barbs (201) are evenly arranged on the suture line (200).

3. The wound traction closure device according to claim 1, characterized in that, The suture needle (300) has an arc-shaped structure.

4. The wound traction closure device according to claim 1, characterized in that, The fixing plate (100) has a circular structure.

5. A wound traction closure device according to claim 4, characterized in that, The rotating cylinder block (102) rotates on the central shaft block (101), and the diameter of the rotating cylinder block (102) is smaller than the diameter of the fixed plate (100).

6. The wound traction closure device according to claim 1, characterized in that, The suture (200) is made of absorbable material, and the length of the suture (200) is 8-15cm and the diameter is 2-3mm.

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