A large-mesh hernia repair patch
By designing a large-mesh hernia repair patch, using interlaced medical textile monofilaments, antibacterial fibers, and circulating fibers, combined with antibacterial and biocompatible materials, the problem of mesh density affecting fibrous tissue growth and infection risk is solved, achieving efficient tissue adaptation and antibacterial protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BIOHEALTH MEDICAL TECH CO LTD
- Filing Date
- 2025-03-10
- Publication Date
- 2026-07-10
AI Technical Summary
Existing hernia repair patches with excessively high mesh density can affect the growth of fibrous tissue in patients, increase the likelihood of rejection, and may lead to infection.
It employs multiple medical textile monofilaments, antibacterial fibers, and flow fibers interlaced, with a mesh design of 3mm intervals. It uses antibacterial fibers and polylactic acid fibers, and has a hollow inner wall with an arc surface and conical drainage holes to improve biocompatibility and antibacterial effect.
It enhances the compatibility of fibrous tissue growth, reduces the risk of rejection, improves antibacterial effects, and ensures tissue fluid circulation and patch stability.
Smart Images

Figure CN224474489U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical supplies technology, and in particular to a large-mesh hernia repair patch. Background Technology
[0002] A hernia repair patch is a medical device used in hernia repair surgery. The patch is typically placed at the site of the hernia. During the surgery, after anesthesia, the doctor makes an incision in the skin and subcutaneous tissue to locate the hernia sac, reduces the contents of the hernia back into the abdominal cavity, and then places the hernia repair patch in a defective or weak area of the abdominal wall. For example, in common inguinal hernia surgery, the patch is placed on the posterior wall of the inguinal canal to strengthen the abdominal wall in that area. It is usually made of polymer materials such as polypropylene.
[0003] In the existing technology, if the mesh density inside the hernia repair patch is too large, it will affect the growth of fibrous tissue in the affected area, increase the possibility of rejection, and if bacteria adhere to it, infection is likely to occur, affecting the effect of use. Utility Model Content
[0004] The purpose of this invention is to solve the problems in the use of hernia repair patches in the prior art. If the mesh density of the patch is too large, it will affect the growth of fibrous tissue in the affected area, increase the possibility of rejection, and if bacteria adhere, infection is likely to occur, affecting the effectiveness of use. Therefore, a large-mesh hernia repair patch is proposed.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A large-mesh hernia repair patch includes multiple medical textile monofilaments, multiple antibacterial fibers, and multiple flow fibers. The multiple medical textile monofilaments and multiple flow fibers are woven perpendicularly to each other. The multiple antibacterial fibers are arranged in parallel at the gaps between the multiple parallel flow fibers. The sidewalls of the multiple flow fibers are surrounded by multiple drainage holes.
[0007] Preferably, the medical textile monofilament is made of polypropylene melt spinning, and the diameter of the medical textile monofilament is 0.014-0.016 inches, and the antibacterial fiber is made of chitosan solution spinning.
[0008] Preferably, the circulating fiber is precision extruded from polylactic acid.
[0009] Preferably, the inner wall of the circulating fiber is hollow and is configured as an arc surface.
[0010] Preferably, the intervals between the plurality of medical textile monofilaments, the plurality of antibacterial fibers, and the plurality of flow fibers are 3 mm.
[0011] Preferably, the plurality of drainage holes extend to the inner wall of the flow fiber, and the plurality of drainage holes are respectively configured as tapered holes.
[0012] Compared with the prior art, this utility model provides a large-mesh hernia repair patch, which has the following beneficial effects:
[0013] 1. This large-mesh hernia repair patch uses multiple medical textile monofilaments, multiple antibacterial fibers, and multiple circulating fibers interwoven with a spacing of 3mm. This increases the mesh size of the patch, reducing rejection without affecting the production of fibrous tissue at the affected area. The antibacterial fibers have excellent biocompatibility, can be partially absorbed and metabolized by the human body, and contain amino groups in their molecular structure, giving them antibacterial activity. This enhances the antibacterial effect of the patch and prevents infection.
[0014] 2. This large-mesh hernia repair patch uses polylactic acid fiber extrusion molding for the flow fibers, which has good biocompatibility. The multiple drainage holes around the patch can ensure the flow of tissue fluid in the affected area and reduce the barrier effect of the patch on the affected area and the tissue fluid in the body.
[0015] 3. This large-mesh hernia repair patch features a hollow inner wall for the flow fibers, which improves flow efficiency. The curved inner wall of the flow fibers provides elasticity, enhancing tensile strength and ensuring patch stability. Multiple conical drainage holes ensure effective drainage and improve drainage efficiency. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of a large-mesh hernia repair patch proposed in this utility model;
[0017] Figure 2 for Figure 1 A cross-sectional view of the structure of the circulating fiber.
[0018] In the diagram: 1. Medical textile monofilament, 2. Antibacterial fiber, 3. Circulation fiber. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0020] Reference Figure 1-2A large-mesh hernia repair patch includes multiple medical textile monofilaments 1, multiple antibacterial fibers 2, and multiple flow fibers 3. The multiple medical textile monofilaments 1 and multiple flow fibers 3 are woven perpendicularly to each other. The multiple antibacterial fibers 2 are arranged in parallel at the gaps between the multiple parallel flow fibers 3. The sidewalls of the multiple flow fibers 3 are surrounded by multiple drainage holes.
[0021] Medical textile monofilament 1 is made by melt spinning of polypropylene, and the diameter of medical textile monofilament 1 is 0.014-0.016 inches. Antibacterial fiber 2 is made by solution spinning of chitosan, and circulating fiber 3 is made by precision extrusion molding of polylactic acid.
[0022] The intervals between multiple medical textile monofilaments 1, multiple antibacterial fibers 2, and multiple flow fibers 3 are 3 mm.
[0023] In use, the medical textile monofilament 1 is made of polypropylene melt spinning, and the diameter of the medical textile monofilament 1 is 0.014-0.016 inches, which can ensure the structural basic strength of the patch. Multiple medical textile monofilaments 1, multiple antibacterial fibers 2 and multiple flow fibers 3 are interlaced and the interval is set to 3mm, which can increase the mesh size of the patch, reduce rejection without affecting the production of fibrous tissue in the affected area.
[0024] The antibacterial fiber 2 is made by spinning chitosan solution and is placed in the gaps between multiple flowing fibers 3. Chitosan has excellent biocompatibility and can be partially absorbed and metabolized by the human body. Its molecular structure contains amino groups, which gives it antibacterial activity. It can inhibit bacterial growth through various mechanisms, such as destroying bacterial cell membranes and interfering with bacterial metabolism, thereby improving the antibacterial effect of the patch and preventing infection.
[0025] The circulating fiber 3 is made of polylactic acid fiber through extrusion molding, which has good biocompatibility. The multiple drainage holes around it can ensure the flow of tissue fluid in the affected area and reduce the blocking effect of the patch on the affected area and the tissue fluid in the body.
[0026] To ensure the stability of patch use, such as Figure 1-2 As shown, the inner wall of the flow fiber 3 is hollow and is set as an arc surface. Multiple drainage holes extend to the inner wall of the flow fiber 3, and the multiple drainage holes are set as conical holes.
[0027] The hollow inner wall of the flow fiber 3 can improve the flow effect, and the curved inner wall of the flow fiber 3 can give the flow fiber 3 a certain elasticity, improve the tensile deformation effect, and ensure the stability of the patch. The multiple drainage holes are set as conical holes to ensure the drainage effect and improve the drainage efficiency.
[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A large-mesh hernia repair patch, comprising multiple medical textile monofilaments (1), multiple antibacterial fibers (2), and multiple flow-through fibers (3), characterized in that: Multiple medical textile monofilaments (1) and multiple flow fibers (3) are woven perpendicularly to each other, and multiple antibacterial fibers (2) are arranged in parallel at the gaps between multiple parallel flow fibers (3). Multiple drainage holes are opened around the sidewalls of multiple flow fibers (3).
2. The large-mesh hernia repair patch according to claim 1, characterized in that: The medical textile monofilament (1) is made by melt spinning of polypropylene, and the diameter of the medical textile monofilament (1) is 0.014-0.016 inch. The antibacterial fiber (2) is made by spinning of chitosan solution.
3. The large-mesh hernia repair patch according to claim 1, characterized in that: The circulating fiber (3) is formed by precision extrusion molding of polylactic acid.
4. The large-mesh hernia repair patch according to claim 1, characterized in that: The inner wall of the circulating fiber (3) is hollow and is set as an arc surface.
5. The large-mesh hernia repair patch according to claim 1, characterized in that: The intervals between the multiple medical textile monofilaments (1), multiple antibacterial fibers (2), and multiple flow fibers (3) are 3 mm.
6. The large-mesh hernia repair patch according to claim 1, characterized in that: The plurality of drainage holes extend to the inner wall of the flow fiber (3), and the plurality of drainage holes are respectively configured as tapered holes.