Hernia patch

Abstract

The utility model relates to a hernia patch which comprises a hernia patch body, and the hernia patch body comprises a first surface and a second surface. The hernia patch body is provided with a groove recessed from the first surface to the second surface, the periphery of the groove forms a plane area surrounding the groove, and the bottom of the groove is provided with a through hole. The utility model aims to solve the problems existing in the patch implanting process in the Lijinstein technology. The grooves are formed in the hernia patch body, so that the hernia patch body adapts to a physiological adaptation area of a groin anatomical form; further, the hernia patch body is well matched with the anatomical form of the abdominal wall; due to the good adherence performance, the hernia patch body can be not fixed and can be completely paved on the abdominal wall; even if the pneumoperitoneum pressure is removed, the peritoneum, the patch and the abdominal wall can still be well attached, the moving opportunity of the patch is reduced, and correspondingly, the occurrence of postoperative pain is also reduced.

Description

Technical Field

[0001] The utility model relates to the field of medical consumables, in particular to a hernia patch. Background Art

[0002] Hernia refers to a tissue or organ in the body that leaves its normal anatomical position and is formed through congenital or acquired weaknesses, defects or gaps. It is a common and frequently occurring disease in general surgery, among which extra-abdominal hernia is the most common, especially inguinal hernia, which accounts for about 90% to 95% of extra-abdominal hernias.

[0003] Since 1984, American surgeon Lichtenstein has routinely used polypropylene mesh for inguinal hernia repair surgery. In 1989, he proposed the concept of "tension-free" hernia repair and named it Lichtenstein surgery. He also pointed out that: 1. Inguinal hernia surgery cannot be regarded as a simple operation and should be performed by experienced specialists. 2. Inguinal hernia surgery can be performed under local anesthesia. 3. Inguinal hernia surgery can be performed as an "outpatient" operation. These advanced concepts still have important practical significance. At present, Lichtenstein surgery and laparoscopic surgery represented by transabdominal preperitoneal hernia repair (TAPP) and total extraperitoneal hernia repair (TEP) are considered to be the "gold standard" for the treatment of inguinal hernia. The choice of surgical procedure is mainly based on the principle of individualization. In addition, comprehensive factors such as the doctor's own experience, the patient's wishes, and the conditions of the medical institution should also be considered.

[0004] The ideal hernia repair material should have physical properties that do not change after implantation, be able to resist mechanical stress, have stable chemical properties, and not produce harmful substances; have good biocompatibility, not cause inflammatory reactions and foreign body reactions, be non-carcinogenic, and non-allergenic. In addition, the patch material should also be elastic and bendable; easy to suture; allow collagen fibers to grow in; be resistant to infection and easy to disinfect; and not be affected by body fluids.

[0005] The main hernia patches currently on the market have the following problems that need to be solved:

[0006] 1. The patch shifts, loosens or falls off, thereby increasing the risk of recurrence.

[0007] 2. Complications such as inflammation, fibrosis or patch displacement.

[0008] 3. Factors such as friction or tension imbalance between the patch and surrounding tissues lead to postoperative pain. Summary of the invention

[0009] The utility model aims to provide a hernia patch, aiming to solve the problems existing in the patch implantation process in the Lichtenstein procedure.

[0010] The utility model is realized through the following technical scheme: a hernia patch, comprising a hernia patch body, wherein the hernia patch body comprises a first surface and a second surface; the hernia patch body is provided with a groove which is recessed from the first surface to the second surface, the outer periphery of the groove forms a plane area surrounding the groove, and the bottom of the groove has a through hole.

[0011] Compared with the previous technology, the beneficial effects of the utility model are:

[0012] 1. The grooves on the hernia patch body make the hernia patch body adapt to the physiological adaptation zone of the inguinal anatomical morphology; thereby making the hernia patch body and the abdominal wall anatomical morphology cooperate well; due to the good wall-adhering performance, the hernia patch body can be unfixed, so that it can be completely laid flat on the abdominal wall; even after the pneumoperitoneum pressure is removed, the peritoneum, the patch and the abdominal wall can still fit perfectly, reducing the chance of the patch moving and correspondingly reducing the occurrence of postoperative pain.

[0013] 2. A through hole is reserved on the hernia patch body to accommodate the passage of tissue (spermatic cord), which reduces the trimming of the hernia patch body during surgery, shortens the operation time, and thus reduces the incidence of postoperative complications such as inflammation, hematoma, adhesion, nerve damage, and postoperative pain.

[0014] 3. The hernia patch body is made of semi-absorbable material, which can significantly reduce the foreign body sensation in the groin area after surgery.

[0015] 4. The hernia patch body is made of semi-absorbable material and a mesh structure sheet, which makes it flexible and can be flattened and well placed during the operation. It has good compliance and strength, so the patch is not easy to shrink.

[0016] 5. The hernia patch has clear anatomical landmarks, which reduces the chance of vascular and nerve damage.

[0017] 6. The overall 3D structure of the hernia patch can accommodate the spermatic cord more adaptably and solve the problem of postoperative pain caused by friction or tension imbalance between the hernia patch and surrounding tissues. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 for Figure 1 Left view of

[0020] Figure 3 for Figure 1 Top view of the .

[0021] Explanation of reference numerals: 1 hernia patch body, 2 groove, 21 plane area, 3 circular hole, 4 crack. DETAILED DESCRIPTION

[0022] The utility model is described in detail below in conjunction with the accompanying drawings, but the protection content of the utility model is not limited to the following:

[0023] The utility model provides a hernia patch, which includes a hernia patch body 1, wherein the hernia patch body 1 includes a first surface and a second surface; a groove 2 is provided on the hernia patch body 1 and is recessed from the first surface to the second surface, a plane area 21 surrounding the groove 2 is formed on the periphery of the groove 2, and a through hole 3 is provided at the bottom of the groove 2.

[0024] As a preferred embodiment, the main area of ​​the plane area 21 is located on one side of the groove 2, that is, the groove is set away from the center of the horizontal projection of the entire hernia patch to facilitate accommodating the spermatic cord.

[0025] As a preferred embodiment, at least one side of the outer periphery of the hernia patch body 1 is arc-shaped.

[0026] As a preferred embodiment, the outer periphery of the hernia patch body 1 presents an overall arch-shaped profile, and the arch-shaped profile includes an arc-shaped top and two sides parallel to each other.

[0027] As a more preferred embodiment, the groove 2 is in an arch shape, and the arch shape of the groove 2 includes an arc-shaped top and two sides parallel to each other.

[0028] As a preferred embodiment, the through hole 3 is a circular hole, and the diameter of the through hole 3 is 5-10 mm.

[0029] As a preferred embodiment, the plane area 21 of the hernia patch body 1 has a crack 4 extending from the outer periphery of the hernia patch body to the groove 2.

[0030] As a preferred embodiment, the crack extends from the outer periphery of the hernia patch body to the groove 2 and terminates at the through hole 3.

[0031] As a preferred embodiment, the depth of the groove 2 is 5-25 mm.

[0032] As a preferred embodiment, the hernia patch body 1 includes a sheet material with a mesh structure and a semi-absorbable material layer, and the semi-absorbable material layer forms a fitting surface between the hernia patch body 1 and the tissue on the composite sheet material.

[0033] Specifically, Figure 1-3As shown: a hernia patch, including a hernia patch body 1, the hernia patch body 1 includes a first surface and a second surface; the hernia patch body 1 is provided with a groove 2 which is recessed from the first surface to the second surface, the outer periphery of the groove 2 forms a plane area 21 surrounding the groove 2, and the bottom of the groove 2 has a through hole 3.

[0034] Here, the hernia patch body 1 is shaped to form a groove 2 in the middle thereof, so that it can adapt to the anatomical shape of the inguinal region, ensuring good coordination with the anatomical shape of the abdominal wall and good wall adhesion. In actual use, it can be completely laid flat on the abdominal wall without additional fixation. After the pneumoperitoneum pressure is removed, the peritoneum fits the patch and the abdominal wall perfectly, reducing the chance of the patch moving.

[0035] The through hole 3 provided in the groove can accommodate the spermatic cord to pass through, thereby reducing the trimming of the hernia patch body during the operation, shortening the operation time, and further reducing the incidence of postoperative complications such as inflammation, hematoma, adhesion, nerve damage, and postoperative pain.

[0036] The main area of ​​the plane area 21 is located on one side of the groove 2. The outer periphery of the hernia patch body 1 presents an overall profile of an arch shape, and the arch shape includes an arc-shaped top and two sides parallel to each other. The entire hernia patch body 1 can better adapt to the anatomical morphology of the inguinal region, so that the hernia patch body 1 fits the inguinal region.

[0037] Based on the fact that at least one side of the outer periphery of the hernia patch body 1 is arc-shaped, the upper edge of the groove 2 has an overall arch-shaped profile, and the arch shape of the groove 2 includes an arc-shaped top and two sides parallel to each other.

[0038] In order to ensure the passage of the spermatic cord, the through hole 3 is designed as a circular hole, and the diameter of the circular hole 3 is 5-10 mm.

[0039] Based on the above structure, the utility model also makes the following changes:

[0040] The plane area 21 of the hernia patch body 1 has a crack 4 extending from the outer periphery of the hernia patch body to the groove 2. The crack extends from the outer periphery of the hernia patch body to the groove 2 and ends at the through hole 3. The purpose of the crack 4 is twofold: one is to allow the spermatic cord to pass through, and the other is to finally adjust the size of the hernia patch body 1.

[0041] In the utility model, the hernia patch body 1 comprises a sheet material with a mesh structure and a semi-absorbable material layer, and the semi-absorbable material layer is composited with the sheet material to form a fitting surface between the hernia patch body 1 and the tissue.

[0042] The mesh structure is made of one or more combinations of polypropylene, polyester, polyglycolide, polylactide, polycaprolactone or polyhydroxyalkanoate materials, which have good biocompatibility and mild foreign body reaction. The use of the above materials can significantly reduce the foreign body sensation in the groin area after surgery.

[0043] The specific usage of the utility model is as follows:

[0044] During the Lichtenstein repair surgery, when the operation reaches the stage where the patch needs to be placed, blunt separation is performed with the fingers below the external oblique aponeurosis at the upper and outer side of the incision to prepare sufficient space for the placement of the patch.

[0045] The spermatic cord is then passed through the crack 4 until it falls into the through hole 3 and the groove.

[0046] Then, the areas on both sides of the crack 4 are cross-covered so that the through hole 3 forms a closed loop through hole.

[0047] Finally, the hernia patch body 1 is pressed and adhered to the posterior wall of the inguinal canal, and then the external oblique aponeurosis, subcutaneous tissue and skin layers are sutured.

[0048] Although the utility model uses specific embodiments and their alternatives to illustrate and describe the utility model, it should be understood that various changes and modifications can be implemented as long as they do not deviate from the spirit and scope of the utility model. Therefore, it should be understood that except for the limitations of the attached claims and their equivalents, the utility model is not limited in any sense.

Claims

1. A hernia patch, characterized in that: The hernia patch body (1) comprises a hernia patch body (1), wherein the hernia patch body (1) comprises a first surface and a second surface; the hernia patch body (1) is provided with a groove (2) which is recessed from the first surface to the second surface, the outer periphery of the groove (2) forms a plane area (21) surrounding the groove (2), and the bottom of the groove (2) has a through hole (3).

2. A hernia patch according to claim 1, characterized in that: The main area of ​​the plane area (21) is located on one side of the groove (2).

3. A hernia patch according to claim 1, characterized in that: At least one side of the outer periphery of the hernia patch body (1) is arc-shaped.

4. A hernia patch according to claim 1, characterized in that: The outer periphery of the hernia patch body (1) presents an overall arch-shaped profile, wherein the arch comprises an arc-shaped top and two sides parallel to each other.

5. A hernia patch according to claim 4, characterized in that: The upper edge of the groove (2) surrounds an overall profile in the shape of an arch, and the arch shape of the groove (2) comprises an arc-shaped top and two sides that are parallel to each other.

6. A hernia patch according to claim 1, characterized in that: The through hole (3) is a circular hole, and the diameter of the through hole (3) is 5 to 10 mm.

7. A hernia patch according to claim 1, characterized in that: The plane area (21) of the hernia patch body (1) has a crack (4) extending from the outer periphery of the hernia patch body to the groove (2).

8. A hernia patch according to claim 7, characterized in that: The crack extends from the outer periphery of the hernia patch body towards the groove (2) and terminates at the through hole (3).

9. A hernia patch according to claim 5, characterized in that: The depth of the groove (2) is 5-25 mm.

10. A hernia patch according to claim 5, characterized in that: The hernia patch body (1) comprises a sheet material with a mesh structure and a semi-absorbable material layer, and the semi-absorbable material layer is composited with the sheet material to form a fitting surface between the hernia patch body (1) and the tissue.

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