Preperitoneal space hernia repair patch

Abstract

The utility model discloses a preperitoneal space hernia repair patch, and belongs to the technical field of medical instruments. The preperitoneal space hernia repair patch comprises a bottom piece, a first patch body and a second patch body installed on the surface of the bottom piece, and elastic pieces are laid at the end, away from the second patch body, of the bottom piece and on the surface of the first patch body; the end, close to the bottom piece, of the second patch body is fixedly connected with an elastic rib line. The elastic sheets are mounted on the bottom sheet and the first patch body, so that the bottom sheet can be automatically opened after being placed in a human body, and the elastic sheets are laid, so that the edge and other parts of the bottom sheet can be automatically opened after the bottom sheet is trimmed according to actual conditions; elastic rib lines are arranged on the periphery of the flap on the second patch body, so that the periphery of the flap can be completely and automatically opened, and the flap can completely cover the hernia ring; when the hernia ring defect is large, the whole hernia ring can be covered through sewing of the first patch body and the bottom piece.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, and in particular relates to a preperitoneal space hernia repair patch. Background Technology

[0002] In recent years, hernia repair surgery has attracted increasing attention from general surgeons. Due to the application of repair materials, hernia repair surgery has entered a new era. Treatment concepts and requirements for treatment outcomes are constantly improving, leading to continuous changes and transformations in surgical materials and methods.

[0003] Currently, a type of hernia patch called Kugel has appeared on the market. It achieves auxiliary rebound by adding an elastic ring. Since the size and shape of each patient's hernia may be different, the patch needs to be precisely trimmed according to the actual situation. If the operation is not done properly, the structure of the elastic ring may be damaged, thereby affecting its auxiliary rebound effect and reducing the practicality of the patch. Summary of the Invention

[0004] The purpose of this invention is to address the problems existing in the prior art by providing a preperitoneal space hernia repair patch.

[0005] To achieve the above objectives, the utility model adopts the following technical solution: a preperitoneal space hernia repair patch, comprising a base plate and a first patch body, and a second patch body mounted on the surface of the base plate. The end of the base plate away from the second patch body and the surface of the first patch body are both covered with elastic sheets. An elastic rib is fixedly connected to the end of the second patch body near the base plate, and a positioning line is installed at the end of the second patch body away from the elastic rib. A positioning finger strap is provided on the outer side of the positioning line.

[0006] By adopting the above technical solution, the setting of elastic sheet and elastic rib line enables the base sheet, the first patch body and the second patch body to be automatically and completely unfolded.

[0007] Optionally, the substrate, the first patch body, and the second patch body are all mesh structures, with the wire diameter of the mesh structure being 0.08mm-0.16mm and the mesh aperture diameter being 1.0mm-1.4mm.

[0008] By adopting the above technical solution, the film, the first patch body and the second patch body are all made of polypropylene, which can be compatible with human tissue, reduce stimulation and rejection reactions to the human body, and enable the patch to better integrate with the surrounding tissue, promoting tissue repair and healing.

[0009] Optionally, the substrate is a circular or elliptical mesh.

[0010] By adopting the above technical solutions, the circular or elliptical mesh substrate can better adapt to the shape of the abdominal cavity or hernia opening.

[0011] Optionally, the first patch body is shield-shaped, and a spermatic cord hole is formed on the surface of the first patch body, the diameter of the spermatic cord hole being 0.8cm-1.5cm.

[0012] By adopting the above technical solution, the design of the spermatic cord hole allows for the insertion of the spermatic cord.

[0013] Optionally, the second patch body has a fixing center at its center, the diameter of which is 0.8cm-1.5cm, and the fixing center is connected to the substrate by non-absorbable suturing or thermal fusion.

[0014] By adopting the above technical solution and fixing the center, the second patch body is less likely to move.

[0015] Optionally, the second patch body is composed of 3-6 lobes, with gaps between the distal ends of the lobes and the lobes connected to the fixed center through their proximal ends. The lobes are symmetrically distributed radially around the fixed center.

[0016] By adopting the above technical solution, the flap is designed so that the second patch body can better cover the hernia ring.

[0017] Optionally, the elastic ribs are distributed along the contour of the petal, and the elastic ribs are located at the end away from the fixed center. The elastic ribs are connected to the edge of the petal by thermal fusion.

[0018] By adopting the above technical solution and setting the elastic ribs, the petals can automatically unfold.

[0019] Optionally, the elastic rib is a medical-grade magnesium alloy wire, and the elastic sheet is a medical-grade magnesium alloy sheet.

[0020] By adopting the above technical solution and using biomedical magnesium alloy material, the elastic ribs and elastic sheets have good absorbability and biocompatibility.

[0021] Optionally, the positioning line is located at the center of the second patch body, and the positioning finger is suspended outside the positioning line.

[0022] By adopting the above technical solution, the positioning finger strap and the positioning line are coordinated, making it easy to remove the positioning finger strap.

[0023] Compared with the prior art, the beneficial effects of this utility model are:

[0024] 1. By installing elastic sheets on both the base film and the first patch body, the base film can automatically open after being placed inside the body. The elastic sheets also allow the base film to automatically open its edges and other parts after trimming as needed. Elastic ribs are placed around the flaps of the second patch body, allowing them to open completely and fully cover the hernial ring. When the hernial ring defect is large, the entire hernial ring can be covered by suturing the first patch body and the base film. 2. By setting a fixed center at the center point of the base film and the second patch body, the second patch body is less prone to movement, ensuring its stability and durability in the preperitoneal space, effectively repairing the hernia and preventing recurrence. 3. By suspending a positioning finger strap outside the positioning line, the positioning finger strap can be cut and removed at the end away from the second patch body, avoiding improper or excessive removal of the positioning finger strap, which could affect the stability and fit of the hernia repair patch. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the connection structure between the film and the second patch body of this utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the first patch body of this utility model;

[0027] Figure 3 This is a rear view structural diagram of the second patch body of this utility model;

[0028] Figure 4 This is a schematic diagram of the connection structure between the substrate and the elastic sheet of this utility model;

[0029] Figure 5 This is a schematic diagram of the connection structure between the second patch body and the positioning finger strap of this utility model;

[0030] Figure 6 This is a schematic diagram of the connection structure between the film and the first patch body of this utility model.

[0031] In the diagram: 1. Film; 2. First patch body; 201. Squirrel hole; 3. Second patch body; 301. Fixing center; 4. Elastic sheet; 5. Elastic rib; 6. Positioning line; 7. Positioning finger strap. Detailed Implementation

[0032] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0033] In the description of this utility model, it should be noted that the terms "middle", "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] like Figure 1 As shown in Figure 6, the specific implementation scheme is as follows: A preperitoneal space hernia repair patch includes a base plate 1 and a first patch body 2, and a second patch body 3 installed on the surface of the base plate 1. The base plate 1 is a circular or elliptical mesh. The base plate 1 can be trimmed at will, and the edges are not easily loosened and can withstand suture tension. The first patch body 2 is shield-shaped. A spermatic cord hole 201 is opened on the surface of the first patch body 2. The diameter of the spermatic cord hole 201 is 0.8cm-1.5cm. The spermatic cord hole 201 is provided to allow the spermatic cord to be inserted. When the hernia ring defect is large, the tail of the first patch body 2 can be sutured to the second patch body 3. The second patch body 3 is a circular or elliptical mesh. The size of the second patch body 3 should be 1cm-2cm larger than the tissue defect.

[0035] The second patch body 3 has a fixing center 301 at its center. The diameter of the fixing center 301 is 0.8cm-1.5cm. The fixing center 301 is connected to the substrate 1 by non-absorbable sutures or thermal fusion. The tensile strength of the fixing center 301 is >40N / cm. The second patch body 3 is composed of 3-6 flaps, and there are gaps between the distal ends of the flaps. The flaps are connected to the fixing center 301 through their proximal ends. The flaps are radially symmetrically distributed around the fixing center 301. The term "flap" is used in this document. "Plate" refers to the sheet-like structure in the second patch body 3 of the present invention. The "leaf" of the present invention can have a basically regular fan shape, such as 45°, 60°, 90°, 120° fan shape. The second patch body 3 composed of multiple leaflets can fit more closely to the corresponding position in the preperitoneal space, reducing the risk of displacement or dislodgement. Secondly, the second patch body 3 composed of multiple leaflets can better combine with the anterior sheath of the rectus abdominis muscle during suturing, playing a role in fixing the second patch body 3. This not only ensures the stability of the patch after surgery, but also helps to prevent the recurrence of hernia.

[0036] The substrate 1, the first patch body 2, and the second patch body 3 are all mesh structures. The mesh wire diameter of the mesh structure is 0.08mm-0.16mm, and the mesh aperture diameter is 1.0mm-1.4mm. The substrate 1 reinforces the thin transversalis fascia, while the cooperation of the first patch body 2 and the second patch body 3 covers the entire pectineus foramen area, repairing and replacing the function of the transversalis fascia. The substrate 1 is fixed to the abdominal wall by the pressure of the abdominal cavity and is fixed by the proliferating fibers and tissues after surgery. The patch has low shrinkage, which is sufficient to prevent internal organs and tissues from bulging out from the abdominal wall defect.

[0037] The end of the substrate 1 furthest from the second patch body 3 and the surface of the first patch body 2 are both covered with elastic sheets 4. The elastic sheets 4 have a mesh structure, and their area is the same as that of the substrate 1 and the first patch body 2. The elastic sheets 4 are connected to the substrate 1 and the first patch body 2 by thermal fusion. An elastic rib 5 is fixedly connected to the end of the second patch body 3 closest to the substrate 1. The elastic rib 5 is distributed along the contour of the petals, and is located at the end furthest from the fixing center 301. The elastic rib 5 is connected to the substrate 1 by thermal fusion. The edge connection of the flaps, the elastic rib 5 is a medical magnesium alloy wire, the elastic sheet 4 is a medical magnesium alloy sheet, the biomedical magnesium alloy has good absorbability and biocompatibility, the biomedical magnesium alloy material, by mass percentage, includes: 1.5%~2.5% Zn, the balance is Mg and a very small amount of impurities, wherein the impurities include Fe, Al, Si, Cu, Ni, by mass percentage, Fe≤0.02%, Al≤0.02%, Si≤0.02%, Cu≤0.02%, Ni≤0.002%;

[0038] A positioning line 6 is installed at the end of the second patch body 3 away from the elastic rib 5. The positioning line 6 is located at the center of the second patch 3. The positioning line 6 is made of a material that can be absorbed by the human body. A positioning finger strap 7 is provided on the outside of the positioning line 6. The positioning finger strap 7 is suspended on the outside of the positioning line 6. The positioning finger strap 7 is designed to help the doctor to more accurately position the patch and fix it effectively during the operation. At the same time, the positioning finger strap 7 can also help the doctor maintain the stability of the patch when suturing or fixing the patch. By pulling or adjusting the positioning finger strap 7, the doctor can better control the position and shape of the patch and ensure its fit and fixation with the surrounding tissues. When it is necessary to separate the positioning finger strap 7 from the positioning line 6, simply cut off the end of the positioning finger strap 7 away from the positioning line 6, and then pull out the positioning finger strap 7 to remove it.

[0039] Patch implantation method:

[0040] 1. Under local or continuous epidural anesthesia, a routine inguinal incision is made, the external oblique aponeurosis is incised, the spermatic cord is freed, the hernia sac is identified and incised, and sufficient preperitoneal space is created.

[0041] 2. Clamp the second patch body 3 with oval forceps and place it together with the film 1 into the preperitoneal space. Then use your fingers to push and flatten the film 1 so that it is fully unfolded and flattened in the preperitoneal space, covering the entire inguinal triangle area.

[0042] 3. Next, cover the hernia ring with the four butterfly plates on the second patch body 3 and suture it to the external oblique aponeurosis. If the hernia ring defect is large, the spermatic cord can be placed into the spermatic cord hole 201 on the first patch body 2. Suture the tail of the first patch body 2 to the second patch body 3, lay the first patch body 2 flat, and push it into the space between the subcutaneous tissue and the transverse abdominal fascia.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A preperitoneal space hernia repair patch, comprising a base plate (1) and a first patch body (2), and a second patch body (3) mounted on the surface of the base plate (1), characterized in that, Elastic sheets (4) are laid on the surface of both the end of the base plate (1) away from the second patch body (3) and the surface of the first patch body (2); an elastic rib (5) is fixedly connected to the end of the second patch body (3) near the base plate (1), and a positioning line (6) is installed at the end of the second patch body (3) away from the elastic rib (5), and a positioning finger strap (7) is provided on the outside of the positioning line (6).

2. The preperitoneal space hernia repair patch according to claim 1, characterized in that: The substrate (1), the first patch body (2) and the second patch body (3) are all mesh structures. The diameter of the mesh wires in the mesh structure is 0.08mm-0.16mm, and the diameter of the mesh openings in the mesh structure is 1.0mm-1.4mm.

3. The preperitoneal space hernia repair patch according to claim 1, characterized in that: The substrate (1) is a circular or elliptical mesh.

4. The preperitoneal space hernia repair patch according to claim 1, characterized in that: The first patch body (2) is shield-shaped, and a spermatic cord hole (201) is provided on the surface of the first patch body (2), the diameter of the spermatic cord hole (201) being 0.8cm-1.5cm.

5. The preperitoneal space hernia repair patch according to claim 1, characterized in that: The second patch body (3) has a fixed center (301) at its center. The diameter of the fixed center (301) is 0.8cm-1.5cm. The fixed center (301) is connected to the substrate (1) by non-absorbable stitching or thermal fusion.

6. The preperitoneal space hernia repair patch according to claim 5, characterized in that: The second patch body (3) is composed of 3-6 lobes, and there are gaps between the distal ends of the multiple lobes. The multiple lobes are connected to the fixed center (301) through their respective proximal ends. The multiple lobes are symmetrically distributed radially around the fixed center (301).

7. A preperitoneal space hernia repair patch according to claim 6, characterized in that: The elastic ribs (5) are distributed along the outline of the petal, and the elastic ribs (5) are located at one end away from the fixed center (301). The elastic ribs (5) are connected to the edge of the petal by thermal fusion.

8. The preperitoneal space hernia repair patch according to claim 1, characterized in that: The elastic rib (5) is a medical magnesium alloy wire, and the elastic sheet (4) is a medical magnesium alloy sheet.

9. A preperitoneal space hernia repair patch according to claim 1, characterized in that: The positioning line (6) is located at the center of the second patch body (3), and the positioning finger strap (7) is suspended on the outside of the positioning line (6).

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