3D patch for hernia treatment

Abstract

The utility model discloses a 3D patch for hernia treatment, which comprises a 3D patch formed by superposing an outer patch and an inner patch, a main framework and an edge extension framework fixedly connected with the main framework are arranged on the opposite sides of the outer patch and the inner patch, a sliding cylinder is sleeved on the surface of the main framework, and the outer patch and the inner patch are arranged on the surface of the sliding cylinder. Side frameworks connected with the edge extension framework are arranged on the two sides of the sliding cylinder, and a pushing rib extending out of the 3D patch is arranged on the inner side of the sliding cylinder. According to the utility model, the main skeleton, the side skeleton and the extended edge skeleton are used as reinforcing parts of the 3D patch, so that the weak transverse fascia is reinforced, the 3D patch can cover the whole pubis muscle hole area, the function of repairing and replacing the transverse fascia is realized, and meanwhile, the 3D patch has good extensibility, is not easy to shrink and fold, reduces foreign body sensation at the edge, and is convenient to use. Complications are reduced, so that the patient can recover quickly.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and in particular relates to a 3D patch for hernia treatment. Background Art

[0002] Abdominal wall hernia is caused by the protrusion of abdominal organs through the inguinal canal. The incidence of abdominal wall hernia is high (about 27% in men and 3% in women), and it may occur at all ages. Traditional repair methods are not used due to problems such as easy recurrence, long repair time, and postoperative pain. Therefore, tension-free repair surgery using patches came into being. Tension-free hernia repair surgery uses patches to repair the hernia gap, reducing the postoperative pain and recurrence rate of traditional hernia repair surgery. At present, patches made of polyester and polypropylene materials are commonly used in clinical practice.

[0003] Polypropylene patch has excellent chemical stability and tissue compatibility, can promote the formation of fibrous tissue, and has the advantages of good anti-infection, high strength, biological inertness, easy operation and low price.

[0004] However, after the existing polypropylene patch is inserted into the patient's body, especially during laparoscopic hernia repair, due to the narrow incision, the periphery of the patch is easily wrinkled after being inserted into the body, making it difficult for the patient to recover. Summary of the invention

[0005] The purpose of the utility model is to provide a 3D patch for hernia treatment in view of the problems existing in the prior art, so as to solve the problem that during laparoscopic hernia repair, due to the narrow incision, the periphery of the patch is easily wrinkled after being inserted into the body, thus being detrimental to the patient's recovery.

[0006] To achieve the above-mentioned purpose, the utility model provides a 3D patch for hernia treatment, including a 3D patch formed by overlapping an outer patch and an inner patch, wherein the outer patch and the inner patch are provided with a main frame and an extension frame fixedly connected to the main frame on opposite sides, a slide tube is sleeved on the surface of the main frame, side frames connected to the extension frame are provided on both sides of the slide tube, and a pushing rib extending out of the 3D patch is provided on the inner side of the slide tube.

[0007] The double-layer structure of the outer patch and the inner patch is used to wrap the reinforcements composed of the main frame, the side frame and the extended frame, so that the surface of the 3D patch is still smooth, reducing the scratches and entanglement between the protrusions and the patient's flesh and blood, making it smoother for doctors to insert the 3D patch into the patient's body. The main frame, the side frame and the extended frame are used as reinforcements for the 3D patch to strengthen the weak transverse abdominal fascia. The use of the 3D patch can cover the entire pubic muscle foramen area, repair and replace the function of the transverse abdominal fascia. At the same time, it also provides good stretchability for the 3D patch, is not easy to shrink wrinkles, reduces the patient's foreign body sensation, reduces the occurrence of complications, and enables patients to recover quickly. In addition, pulling the pushing ribs before inserting into the patient's body can make the 3D patch contract, reduce the volume, and facilitate insertion. After inserting into the patient's body, the pushing ribs can be pushed to quickly unfold the 3D patch, and the operation is quick.

[0008] Optionally, the 3D patch has an overall arc-shaped convex structure, and the 3D patch is shield-shaped when viewed from above.

[0009] The 3D patch has an arc-shaped convex structure and is implanted in the preperitoneal space through laparoscopic minimally invasive surgery. It conforms to the physiological and anatomical structure of the pubic foramen, is easy to unfold, and is close to the human inguinal area, effectively preventing the patch from shifting. It also has a low foreign body sensation, causes little damage to the patient, and is easy for the patient to recover.

[0010] Optionally, the outer patch and the inner patch are both polypropylene meshes with a mesh wire diameter of 0.08-0.16 mm, a mesh hole diameter of 1.0-1.4 mm, and a breaking strength of >40 N / cm.

[0011] It is easy to cut, and the edges are not easy to loosen after cutting. It also has the biological properties of no genetic toxicity, hemolysis rate not more than 5%, no cytotoxicity and no sensitization.

[0012] Optionally, the mesh diameter of the inner layer patch is smaller than the mesh diameter of the outer layer patch.

[0013] Optionally, the main skeleton is laterally arranged in the middle of the 3D patch.

[0014] The main skeleton is arranged in the middle of the 3D patch as a core skeleton, which can better support the entire 3D patch and coordinate the deployment of the 3D patch.

[0015] Optionally, the Yanbian skeleton is in a "U" shape, the number of the Yanbian skeletons is not less than 5, the axis lines and opening directions of all the Yanbian skeletons are the same, and the spacings between all the Yanbian skeletons are equal.

[0016] The use of a ribbed edge framework makes the edges of the 3D patch less prone to wrinkling and curling. At the same time, in the form of equidistant distribution, medical staff can cut the 3D patch along the gap between two adjacent ribbed edge frameworks, ensuring that the cut 3D patch still has good stretchability.

[0017] Optionally, a sliding cavity adapted to the sliding cylinder is provided at one end of the main framework away from the ribbed edge framework. The cross-section of the sliding cylinder is in the shape of a "曰" character, and the pushing rib is located inside the sliding cavity.

[0018] The pushing rib is arranged inside the main framework, reducing the impact on the 3D patch when medical staff operate the pushing rib.

[0019] Optionally, the sliding cylinder is rotatably connected to the side framework through an elastic member, and the side framework is connected to all the ribbed edge frameworks through a plurality of collar rings.

[0020] Using the elastic member to connect one end of the side framework to the sliding cylinder enables the side framework to flexibly slide along with the sliding cylinder on the main framework and thus adjust the angle with the sliding cylinder.

[0021] Compared with the prior art, the beneficial effects of the present utility model are as follows: 1. The double-layer structure of the outer patch and the inner patch wraps the reinforcement composed of the main framework, the side framework, and the ribbed edge framework, making the surface of the 3D patch still smooth, reducing the scraping and pulling between the protrusions and the patient's flesh and blood, and making it smoother for doctors to insert the 3D patch into the patient's body; 2. By using the main framework, the side framework, and the ribbed edge framework as the reinforcement of the 3D patch, the weak transversus abdominis fascia is strengthened. The 3D patch can cover the entire femoral ring area, repair and replace the function of the transversus abdominis fascia. At the same time, it also provides good stretchability for the 3D patch, is not prone to shrinkage and wrinkling, reduces the foreign body sensation at the edge, and reduces the occurrence of complications, enabling the patient to recover quickly; 3. Before inserting into the patient's body, pulling the pushing rib can make the 3D patch contract and reduce its volume for convenient insertion. After inserting into the patient's body, pushing the pushing rib can quickly expand the 3D patch, with quick operation; 4. The 3D patch has an arc convex surface structure and is implanted into the preperitoneal space through minimally invasive laparoscopic surgery, conforming to the physiological and anatomical structure of the femoral ring, being easy to unfold, close to the inguinal region of the human body, effectively preventing the patch from shifting, causing little damage to the patient, and being easy for the patient to recover; 5. The use of a ribbed edge framework makes the edges of the 3D patch less prone to wrinkling and curling. At the same time, in the form of equidistant distribution, medical staff can cut the 3D patch along the gap between two adjacent ribbed edge frameworks, ensuring that the cut 3D patch still has good stretchability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic cross-sectional view of the 3D patch of the present utility model;

[0023] Figure 2 This is a schematic side cross-sectional view of the 3D patch of the utility model;

[0024] Figure 3 This is a three-dimensional schematic diagram of the 3D patch of the utility model;

[0025] Figure 4 It is a schematic diagram of the local structure of the skeleton of the utility model.

[0026] In the figure: 1. 3D patch; 11. Outer patch; 12. Inner patch; 2. Edge wrapping; 3. Main frame; 31. Connecting sleeve; 32. Sliding cavity; 4. Sliding cylinder; 5. Side frame; 6. Edge frame; 7. Pushing ribs. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as "middle", "upper", "lower", "left", "right", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0029] like Figure 1 —4, the specific scheme of the embodiment is as follows: a 3D patch for hernia treatment, comprising a 3D patch 1 formed by overlapping an outer patch 11 and an inner patch 12, a main frame 3 and a side frame 6 fixedly connected to the main frame 3 are arranged on the opposite side of the outer patch 11 and the inner patch 12, a slide 4 is sleeved on the surface of the main frame 3, side frames 5 connected to the side frames 6 are arranged on both sides of the slide 4, a plurality of link sleeves 31 fixedly connected to the side frames 6 are arranged on the surface of the main frame 3, the side frames 5 are connected to all the side frames 6 through a plurality of rings, and a pushing rib 7 extending out of the 3D patch 1 is arranged on the inner side of the slide 4.

[0030] The double-layer structure of the outer patch 11 and the inner patch 12 is used to wrap the reinforcement composed of the main frame 3, the side frame 5 and the extended frame 6, so that the surface of the 3D patch 1 is still smooth, reducing the scratches and entanglements between the protrusions and the patient's flesh and blood, making it smoother for the doctor to insert the 3D patch 1 into the patient's body. The main frame 3, the side frame 5 and the extended frame 6 are used as reinforcements for the 3D patch 1 to strengthen the weak transverse abdominal fascia. The 3D patch 1 can cover the entire pubic muscle foramen area, repair and replace the function of the transverse abdominal fascia, and at the same time, it also provides the 3D patch 1 with good stretchability, is not easy to shrink wrinkles, reduces the patient's foreign body sensation, reduces the occurrence of complications, and enables the patient to recover quickly. In addition, pulling the pushing ribs 7 before inserting into the patient's body can make the 3D patch 1 contract, reduce the volume, and facilitate insertion. After inserting into the patient's body, the pushing ribs 7 can be pushed to quickly unfold the 3D patch 1, and the operation is quick.

[0031] It should be noted that, in the present embodiment, the main frame 3 , the side frame 5 , the edge frame 6 , and the driving ribs 7 are all made of the same material as the 3D patch 1 .

[0032] like Figure 1 and Figure 3 As shown, the 3D patch 1 is an arc-shaped convex structure as a whole and the 3D patch 1 is shield-shaped when viewed from above. After being implanted into the preperitoneal space through laparoscopic minimally invasive surgery, the arc-shaped convex structure can conform to the physiological and anatomical structure of the pubic foramen, is easy to unfold, and is close to the human groin area, effectively preventing the patch from shifting, and has a low foreign body sensation, causes little damage to the patient, and is easy for the patient to recover.

[0033] In this embodiment, the outer patch 11 and the inner patch 12 are both polypropylene meshes, with a mesh diameter of 0.08-0.16 mm, a mesh diameter of 1.0-1.4 mm, and a breaking strength of >40 N / cm. They are easy to cut, and the edges are not easy to loosen after cutting, and have biological properties of no genetic toxicity, a hemolysis rate of no more than 5%, no cytotoxicity, and no sensitization.

[0034] The mesh diameter of the inner layer patch 12 is smaller than the mesh diameter of the outer layer patch 11. The inner layer patch 12 is in direct contact with the internal organs, and the smaller mesh diameter can better intercept blood and flesh tissue.

[0035] In addition, in order to enhance the antibacterial effect, silk threads containing silver ions are mixed into the outer patch 11 and the inner patch 12 during the weaving process, which helps to inhibit bacterial growth and reduce the occurrence of complications after the 3D patch 1 is implanted in the human body.

[0036] like Figure 2 As shown, the main skeleton 3 is transversely arranged in the middle of the 3D patch 1. The main skeleton 3 is arranged in the middle of the 3D patch 1 as a core skeleton, which can better support the entire 3D patch and coordinate the deployment of the 3D patch.

[0037] As Figure 1 shown, the edge extension frame 6 is in a "U" shape. The number of edge extension frames 6 is not less than 5, and the axis lines and opening directions of all the edge extension frames 6 are the same. The intervals between all the edge extension frames 6 are equal. Using the edge extension frame 6 makes the edge of the 3D patch 1 not easy to wrinkle or curl. At the same time, in the form of equidistant distribution, when medical staff cut the 3D patch 1, they can cut along the gap between two adjacent edge extension frames 6, ensuring that the cut 3D patch 1 still has good stretchability.

[0038] As Figure 4 shown, a sliding cavity 32 adapted to the sliding cylinder 4 is provided at one end of the main frame 3 far from the edge extension frame 6. The cross-section of the sliding cylinder 4 is in a "曰" shape, and the pushing rib 7 is located inside the sliding cavity 32. The pushing rib 7 is arranged inside the main frame 3, reducing the influence on the 3D patch 1 when medical staff operate the pushing rib 7.

[0039] It should be noted here that the pushing rib 7 and the sliding cylinder 4 are in a spiral connection. After the 3D patch is implanted into the patient's body and unfolded, by turning the pushing rib 7, the pushing rib 7 can be removed from the sliding cylinder 4.

[0040] Finally, the sliding cylinder 4 is rotatably connected to the side frame 5 through an elastic member. The elastic member is used to connect one end of the side frame 5 to the sliding cylinder 4, enabling the side frame 5 to flexibly slide on the main frame 3 along with the sliding cylinder 4 so as to adjust the angle with the sliding cylinder 4.

[0041] Working principle: For a conventional inguinal incision, incise the external oblique aponeurosis of the abdomen, free the spermatic cord, identify and incise the hernial sac, create a sufficient preperitoneal space, pull the pushing rib 7, thereby driving the side frame 5 to move, making the 3D patch contract. Then clamp it with an egg-shaped forceps, put the 3D patch 1 into the preperitoneal space until it is completely immersed in the patient's body. Subsequently, push the pushing rib 7, and cooperate with the elasticity of the edge extension frame 6 itself to make the 3D patch 1 fully unfold and flatten in the preperitoneal space, covering the entire inguinal triangle area. Then twist the pushing rib 7, and the pushing rib 7 can be removed from the sliding cylinder 4.

[0042] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A 3D patch for hernia treatment, characterized in that: It includes a 3D patch (1) formed by laminating an outer patch (11) and an inner patch (12) together. A main framework (3) and a peripheral framework (6) fixedly connected to the main framework (3) are arranged on opposite sides of the outer patch (11) and the inner patch (12). A sliding cylinder (4) is sleeved on the surface of the main framework (3). Side frameworks (5) connected to the peripheral framework (6) are arranged on both sides of the sliding cylinder (4). A pushing rib (7) extending outside the 3D patch (1) is arranged inside the sliding cylinder (4).

2. A 3D patch for hernia treatment according to claim 1, characterized in that: The 3D patch (1) is integrally in an arc convex surface structure, and the 3D patch (1) is shield-shaped in a top view state.

3. The 3D patch for hernia treatment according to claim 1, characterized in that: Both the outer patch (11) and the inner patch (12) are polypropylene mesh sheets, the wire diameter of the mesh is 0.08 - 0.16 mm, the mesh hole diameter is 1.0 - 1.4 mm, and the breaking strength > 40 N / cm.

4. The 3D patch for hernia treatment according to claim 3, characterized in that: The mesh hole diameter of the inner patch (12) is smaller than that of the outer patch (11).

5. The 3D patch for hernia treatment according to claim 1, characterized in that: The main framework (3) is horizontally arranged in the middle of the 3D patch (1).

6. The 3D patch for hernia treatment according to claim 1, characterized in that: The peripheral framework (6) is in a "U" shape. The number of the peripheral frameworks (6) is not less than 5, and the axis lines and opening directions of all the peripheral frameworks (6) are the same, and the intervals between all the peripheral frameworks (6) are equal.

7. The 3D patch for hernia treatment according to claim 1, characterized in that: A sliding cavity (32) adapted to the sliding cylinder (4) is formed at one end of the main framework (3) away from the peripheral framework (6). The cross-section of the sliding cylinder (4) is in a "曰" shape, and the pushing rib (7) is located inside the sliding cavity (32).

8. The 3D patch for hernia treatment according to claim 1, characterized in that: The sliding cylinder (4) is rotatably connected to the side framework (5) through an elastic member, and the side framework (5) is connected to all the peripheral frameworks (6) through a plurality of collar rings.

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