Hernia patch

Abstract

A hernia patch comprises a central rectangular part, a semicircular part A and a semicircular part B. The diameter of the semicircular part A coincides with one end of the rectangular part, and the diameter of the semicircular part B coincides with one end of the rectangular part. The hernia patch can be of a net-shaped structure. Preferably, the periphery of the hernia patch comprises a peripheral loop part, and the peripheral loop part is connected with the edge of the net-shaped structure. The peripheral ferrule portion may be crimped to the periphery of the hernia patch by hot melting. The central rectangular part comprises a reference window area in the middle, and the distance between the edge of the reference window area and the edge of the hernia patch is larger than a set value. The net structure of the reference window area can be different from the net structures of other parts of the hernia patch; and the reference window area is crimped to the central part of the hernia patch through hot melting. The hernia patch can be manufactured through injection molding and extrusion molding.

Description

TECHNICAL FIELD

[0001] The present application belongs to the medical field, and particularly relates to a hernia patch. BACKGROUND

[0002] Hernia patch repair is a surgical method for treating abdominal hernia. The surgery needs to use an artificial synthetic patch, which is like mending a hole in a garment with a piece of cloth, so as to avoid the tension generated by forcibly pulling and suturing different structures of anatomical levels.

[0003] The repair material used in clinical practice is woven from polypropylene material, which has good tensile strength and anti-folding performance. The patch is in the form of a porous mesh, which is conducive to water infiltration and tissue growth. Generally, the patch can be fixed and adhered to the tissue within a few minutes after being placed in the body. The patch is non-absorbable and will remain in the body for a long time after the operation, but it has good compatibility with the body and rarely causes foreign body reactions or only has slight discomfort for a short period of time. At the same time, the size of the pores of the patch is not conducive to the hiding of bacteria, so it has good anti-infection ability.

[0004] Due to the difference in surgical sites, in clinical application, doctors cut the patch according to their experience on the spot. Figure 12 On the spot, the doctor determines the size according to the size of the patient's surgical site, and determines the shape and size of the hernia patch according to the doctor's experience. The doctor needs to draw the corresponding hernia opening part of the hernia patch and the safety distance around the hernia opening part. The safety distance in the figure is 6.5 cm. The doctor cuts the hernia patch on the spot according to the design. The quality control of the hernia patch cut on the spot depends on the doctor's experience. The temporarily made hernia patch has uneven cutting edges around the patch, which is easy to leave stubble, and the shape cannot be well controlled.

[0005] In the prior art, there are also 3D-shaped hernia patches pre-made in the factory according to special parts. This type of hernia patch can only be applied to special parts. SUMMARY

[0006] The present application arranges two or more semicircles around a rectangle. The middle part of the rectangle corresponds to the wound position in the operation. The distance between the wound position and the edge of the hernia patch is greater than the minimum required value.

[0007] A hernia patch comprises a central rectangular part, a semicircular part A, and a semicircular part B. The diameter of the semicircular part A coincides with the first side of the rectangular part, and the diameter of the semicircular part A is equal to the first side. The diameter of the semicircular part B coincides with the second side of the rectangular part, and the diameter of the semicircular part B is equal to the second side.

[0008] It can also comprise a semicircular part C, and the diameter of the semicircular part C coincides with the third side of the rectangular part, and the diameter of the semicircular part C is equal to the third side.

[0009] The hernia patch can also be a mesh structure, and the periphery of the hernia patch comprises a peripheral collar portion connected to the edge of the mesh structure.

[0010] The peripheral collar portion can be heat-welded to the periphery of the hernia patch.

[0011] The central rectangular portion can comprise a reference window region in the middle, and the edge of the reference window region is greater than a set value from the edge of the hernia patch.

[0012] The mesh structure of the reference window region can be different from the mesh structure of other parts of the hernia patch.

[0013] The reference window region can be formed by dyeing.

[0014] The hernia patch can be manufactured by injection molding.

[0015] The hernia patch can be used in the inguinal region, and the diameter of the semicircular portion A is equal to 10 cm, the width of the central rectangular portion is 5 cm, and the height is 10 cm.

[0016] The hernia patch can be made of polypropylene material.

[0017] One of the technical effects of the above technical solution is that the patch rectangular center line connecting the centers of the left and right two circles covers the hernia opening part, which can ensure that the distance of the periphery of the patch reaches the required safety distance, greatly reducing the difficulty of the doctor's operation, and using technical means to ensure the high quality of the operation.

[0018] One of the technical effects of the above technical solution is that compared with a circular patch, the rectangular portion improves the ability to cover the hernia opening part, and different lengths of the rectangular portion correspond to different lengths of the hernia opening part.

[0019] One of the technical effects of the above technical solution is that during the operation, temporary trimming is not required, and the fragments brought in by trimming are avoided.

[0020] One of the technical effects of the above technical solution is that the periphery of the patch will not have a stub portion, which will not cause discomfort to the patient, will not stimulate the surrounding tissue of the patient, and will not cause adverse postoperative complications.

[0021] One of the technical effects of the above technical solution is that the peripheral collar portion eliminates the stub, and the semicircular portion will not cause severe friction with the surrounding tissue, and the patient will not have adverse sequelae after the operation.

[0022] One of the technical effects of the above technical solution is that the sparse mesh setting of the reference window area is different from other parts, which facilitates the doctor to accurately position and avoid some organs and tissues during the operation.

[0023] One of the technical effects of the above technical solution is that the doctor can ensure the quality of the operation as long as the hernia opening part is in the reference window area, which facilitates the doctor's operation and ensures the quality of the operation.

[0024] One of the technical effects of the above technical solution is that the hollow reference window is hot-pressed to the middle of the main body through the peripheral collar part, which can mass-produce complete hernia repair patches at low cost.

[0025] One of the technical effects of the above technical solution is that the injection molding can ensure that the reference window area and the main body are made of the same material and undergo the same hot melting process, which can be used for a long time without delamination.

[0026] One of the technical effects of the above technical solution is that it can correspond to the use of 3D structure area. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 A perspective view of a hernia repair patch;

[0028] Figure 2 A top view of a hernia repair patch with three semicircular parts;

[0029] Figure 3 A perspective view of a hernia repair patch;

[0030] Figure 4 A schematic diagram of the distribution of the reference window of a hernia repair patch;

[0031] Figure 5 A perspective view of a sparse reference window;

[0032] Figure 6 A top view of a sparse reference window;

[0033] Figure 7 A schematic diagram of the boundary of a sparse reference window;

[0034] Figure 8 A schematic diagram of the reference window and the peripheral collar part of a hernia repair patch;

[0035] Figure 9 A main body of a hernia repair patch;

[0036] Figure 10 A manually cut hernia repair patch;

[0037] Figure 11 The use position of the hernia repair patch during the operation;

[0038] Figure 12 In the prior art, the conventional hernia patch size and position determination method. DETAILED DESCRIPTION

[0039] The application will be described in further detail below with reference to the drawings. It should be noted that the following description of the preferred embodiments of the application is merely intended to explain the general principles of the application. The description of the preferred embodiments of the application is only intended to illustrate the general principles of the application. The numbers "first", "second", and "A", "B" in the application are only for the convenience of description, and do not represent the time or spatial sequence relationship. The combination of letters and numbers "TA", "TB", "H" in the application is only for the convenience of description, and the specific meaning is determined by the word referred to.

[0040] As shown in Figure 1 , a perspective view of a hernia patch, including a central rectangular part, a semicircular part A, and a semicircular part B. The diameter of the semicircular part A coincides with the first side of the rectangular part, and the diameter of the semicircular part A is equal to the first side. The diameter of the semicircular part B coincides with the second side of the rectangular part, and the diameter of the semicircular part B is equal to the second side.

[0041] As shown in Figure 2 , a top view of a hernia patch. The hernia patch also includes a semicircular part C, and the diameter of the semicircular part C coincides with the third side of the rectangular part, and the diameter of the semicircular part C is equal to the third side H. This structure can correspond to the use of 3D structure area, such as semicircular part A and semicircular part B corresponding to plane 1, and semicircular part C corresponding to plane 2.

[0042] As shown in Figure 1 , Figure 2 , the hernia patch is a mesh structure, and the periphery of the hernia patch includes a peripheral collar part connected to the edge of the mesh structure.

[0043] As shown in Figure 10 , during the development of the application, the hernia patch is used in actual surgery. During the operation, the rectangular patch is trimmed into the shape shown in Figure 1 . The rectangular central line connecting the centers of the left and right two circles covers the hernia opening part, which can ensure that the distance of the peripheral patch reaches the necessary safety distance, greatly reducing the difficulty of the operation of the doctor, and using technical means to ensure the high quality of the operation. Compared with a circular patch, the rectangular part improves the ability to cover the hernia opening part. Different lengths of the rectangular part correspond to different lengths of the hernia opening part.

[0044] During the operation, temporary trimming inevitably brings in trimming debris. The general patch is a mesh structure, and after trimming, the periphery of the patch will form Figure 9The shown stubs; because the hernia patch is carried with the patient for life, it will not be removed, these stubs will bring discomfort to the patient, in severe cases, it will repeatedly stimulate the surrounding tissue of the patient, and bring adverse postoperative complications.

[0045] With the peripheral collar part, the stubs are eliminated, and the semicircular part does not produce severe friction with the surrounding tissue, and the patient will not have adverse postoperative complications.

[0046] The above-mentioned peripheral collar part is hot melt pressed to the periphery of the hernia patch.

[0047] As Figure 5 , 6 , 7, the center rectangular part includes a reference window area in the middle, the edge of the reference window area is greater than a set value from the edge of the hernia patch. The general width of the reference window area can be set to about 10 mm, which is greater than the general hernia opening part, and the side length of the rectangular part is greater than the safety distance plus 10 mm.

[0048] As Figure 5 , Figure 6 , Figure 7 The mesh structure of the reference window area is different from that of other parts of the hernia patch; the reference window area is hot melt pressed to the center part of the hernia patch. The mesh of the reference window area is sparser or different from other parts, which is convenient for doctors to align the position during the operation. Because some organs and tissues need to be avoided, the hernia patch needs to be adjusted and installed. However, the distance between the hernia opening part and the edge must be greater than the safety distance. The traditional method requires doctors to have rich experience. The reference window area proposed in the present application is different from the mesh of other parts. As long as the doctor ensures that the hernia opening part is in the reference window area, the quality of the operation can be guaranteed, which is convenient for the doctor to operate and ensures the quality of the operation.

[0049] As Figure 8 , the peripheral collar part is annular and the reference window is hollow. In the production process, Figure 9 , the main body is cut out of a large piece of material, and the periphery has a cutting stub. By hot pressing the peripheral collar part in Figure 8 to the middle of the main body, a complete hernia patch can be produced.

[0050] The above-mentioned hernia patch can be dyed with dye. The use of high-quality dye can reduce the difficulty of production.

[0051] The hernia patch is manufactured by injection molding. The one-piece injection molding can ensure that the reference window area and the main body of the peripheral collar part are made of the same material and undergo the same hot melt forming process, so that they can be used for a long time without delamination and deformation.

[0052] As Figure 4The hernia patch is used in the inguinal region, the diameter of the semicircular portion A is equal to 10 cm, the middle center rectangular portion is 5 cm wide and 10 cm high.

[0053] In some embodiments, the semicircular portion A, semicircular portion B, or semicircular portion C can be a semi-ellipse.

[0054] The hernia patch is made of polypropylene material.

[0055] Although the application is illustrated and described in accordance with preferred embodiments and several alternatives, the application is not limited to the specific descriptions herein. Other alternative or equivalent components can be used to practice the application.

Claims

1. A hernia mesh, characterized in that, It includes a central rectangular portion, a semicircular portion A, and a semicircular portion B. The diameter of the semicircular portion A coincides with the first side of the rectangular portion, and the diameter of the semicircular portion A is equal to the first side. The diameter of the semicircular portion B coincides with the second side of the rectangular portion, and the diameter of the semicircular portion B is equal to the second side.

2. The hernia mesh according to claim 1, characterized in that, It also includes a semicircular portion C, the diameter of which coincides with the third side of the rectangular portion, and the diameter of the semicircular portion C is equal to the third side.

3. The hernia mesh according to claim 2, characterized in that, The hernia patch has a mesh structure, and the periphery of the hernia patch includes an outer loop portion, which is connected to the edge of the mesh structure.

4. The hernia mesh according to claim 3, characterized in that, The outer collar portion is heat-fused to the periphery of the hernia patch.

5. The hernia mesh according to any one of claims 1 to 3, characterized in that, The central rectangular portion includes a reference window area in the middle, and the distance from the edge of the reference window area to the edge of the hernia patch is greater than a set value. The semicircular portion is a semi-ellipse.

6. The hernia mesh according to claim 5, characterized in that, The mesh structure of the reference window area is different from the mesh structure of other parts of the hernia patch; the reference window area is heat-fused to the center of the hernia patch.

7. The hernia mesh according to claim 5, characterized in that, The reference window area is formed by dye coating.

8. The hernia mesh according to claim 1, 2 or 3, characterized in that, The hernia patch is manufactured by injection molding.

9. The hernia mesh according to claim 1, characterized in that, The hernia patch is used in the groin area. The diameter of the semicircular part A is 10 cm, and the width of the central rectangular part is 5 cm and the height is 10 cm.

10. The hernia patch according to claim 1, 2 or 3, characterized in that, The hernia patch is made of polypropylene.

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