Three-dimensional patch for esophageal hiatus hernia repair

Abstract

The invention discloses a three-dimensional patch for esophageal hiatus hernia repair, and relates to the technical field of human life necessities. A three-dimensional patch for esophageal hiatus hernia repair comprises a patch body and an esophagus lower end connecting piece, the esophagus lower end connecting piece is in a U shape and is connected and sewn with the lower end of an esophagus, the two ends of the patch body are in an arc shape and a plane shape respectively, the patch body is made of a silk collagen material, and the silk collagen material has the slow absorbable characteristic; the patch body is gradually degraded into carbon dioxide and water within about two years, the process is matched with the natural repairing process of esophageal pore tissue, meanwhile, the two ends of the patch body are in an arc shape and a plane shape respectively, the patch body is matched with the U-shaped esophageal lower end connecting piece, the complex anatomical structure of the esophageal pore and surrounding tissue can be precisely matched, and the repairing effect is good. The arc-shaped end conforms to the bending form of the connecting part of the esophagus and the stomach, and the U-shaped esophagus lower end connecting piece is attached to the diaphragm radian around the esophageal crack hole, so that the patch is tightly attached to the tissue, and the repairing effect is improved.

Description

Technical Field

[0001] This invention relates to the field of essential technologies for human life, and in particular to a three-dimensional patch for repairing hiatal hernia. Background Technology

[0002] Hiatal hernia is a common digestive system disease, which refers to the entry of organs such as the stomach from the abdominal cavity into the thoracic cavity through the esophageal hiatus in the diaphragm, disrupting the normal anatomical structure of the thoracic and abdominal cavities. With the increasing aging population and changes in lifestyle, the incidence of this disease is on the rise, seriously affecting the quality of life of patients, such as frequent acid reflux, heartburn, and difficulty swallowing, and even causing complications such as esophageal stricture and bleeding. Surgical repair is an important means of treating hiatal hernia, and the selection and application of mesh plays a key role in the surgical outcome and postoperative recovery of patients.

[0003] Traditional hiatal hernia repair patches are mainly divided into synthetic material patches and biological material patches. Synthetic material patches, such as polypropylene and polytetrafluoroethylene, have high mechanical strength and can provide some support for hiatal repair. However, these materials are permanent implants, and their long-term presence in the human body may cause various adverse reactions. Rejection of synthetic materials by human tissues is relatively common, which may lead to local inflammation, infection, or even patch erosion of surrounding tissues, causing serious complications such as esophageal perforation and gastric wall damage. At the same time, synthetic patches cannot integrate with human tissues and will continue to irritate surrounding tissues as foreign bodies for a long time, leading to excessive proliferation of fibrous tissue, scar contracture, and affecting the normal peristaltic function of the esophagus and stomach. Patients may experience discomfort such as food obstruction and abdominal distension. Summary of the Invention

[0004] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a three-dimensional patch for repairing hiatal hernia. This patch can solve the problems that may cause various adverse reactions when it is present in the human body for a long time. It is common for human tissues to reject synthetic materials, which may lead to local inflammation, infection, or even erosion of surrounding tissues by the patch, causing serious complications such as esophageal perforation and gastric wall damage. At the same time, synthetic patches cannot be integrated with human tissues and will irritate surrounding tissues as foreign bodies for a long time, leading to excessive proliferation of fibrous tissue, scar contracture, and affecting the normal peristaltic function of the esophagus and stomach. Patients may experience problems such as food obstruction and abdominal distension.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a three-dimensional patch for repairing hiatal hernia, comprising a patch body and a lower esophageal connecting piece, wherein the lower esophageal connecting piece is U-shaped, and the two ends of the patch body are respectively arc-shaped and planar, and the lower esophageal connecting piece is sutured and fixed to the upper surface of the patch body away from the arc-shaped surface; The lower esophageal connector has an arc-shaped skirt on the upper surface of the end near the main body of the patch, which connects to the lower end of the esophagus and increases mechanical support. The lower esophageal connector has an arc-shaped central hole inside, which is arc-shaped and wraps around the abdominal esophagus. The arc-shaped central hole is integrated with the lower esophageal connector. The main body of the patch is made of silk collagen material.

[0006] Preferably, the arc-shaped skirt is arc-shaped, and the lower end connecting piece of the esophagus and the arc-shaped skirt are integrated.

[0007] Preferably, the end of the esophageal lower end connecting piece that is furthest from the patch body is longer than the plane of the patch body.

[0008] Preferably, the patch body has two openings on the upper surface of one end near the lower end of the esophagus connecting piece, which connect to the lower end of the esophagus.

[0009] Preferably, both openings are arc-shaped.

[0010] Preferably, the esophageal lower end connecting piece is connected to the lower end of the esophagus and can be sutured to fix the lower end of the esophagus.

[0011] Compared with the prior art, the beneficial effects of the present invention are: 1. This three-dimensional patch for hiatal hernia repair uses silk collagen as its main body, which has natural biocompatibility. This greatly reduces the rejection response of the human immune system, avoiding serious complications such as local inflammation, infection, and patch erosion of surrounding tissues caused by rejection. The silk collagen material has slow absorption properties, gradually degrading into carbon dioxide and water over approximately one year. This process matches the natural repair process of the esophageal hiatus tissue. Furthermore, the two ends of the patch are curved and flat, respectively, and when used with a U-shaped esophageal lower end connector, it can... Precisely fitting the complex anatomical structure of the esophageal hiatus and surrounding tissues, the arc-shaped end conforms to the curvature of the esophageal-stomach junction, and the "U"-shaped lower esophageal connector fits the curvature of the diaphragm around the esophageal hiatus, ensuring a tight fit between the patch and the tissue and improving the repair effect. In particular, the design of the arc-shaped skirt and arc-shaped central hole is particularly noteworthy. The arc-shaped skirt tightly wraps around the lower esophagus, and the arc-shaped central hole is precisely fitted onto the outer wall of the esophagus. Both are highly adapted to the contour of the outer wall of the esophagus, effectively filling the gap between the esophagus and the patch, and significantly reducing the risk of gastric contents refluxing into the thoracic cavity through the gap. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the external structure of the arc-shaped skirt of the present invention; Figure 3This is a schematic diagram of the external structure of the patch body of the present invention.

[0013] Reference numerals: 1. Main body of the patch; 2. Arc-shaped skirt; 3. Lower end connecting piece of the esophagus; 4. Opening; 5. Arc-shaped central hole. Detailed Implementation

[0014] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0015] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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 limiting this invention.

[0016] In the description of this invention, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0017] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0018] Please see Figure 1-3This invention provides a technical solution: a three-dimensional patch for repairing hiatal hernia, comprising a patch body 1 and a lower esophageal connecting piece 3. The lower esophageal connecting piece 3 is U-shaped. The two ends of the patch body 1 are respectively arc-shaped and planar. The lower esophageal connecting piece 3 is sutured and fixed to the upper surface of the patch body 1 away from the arc-shaped surface. The upper surface of the lower esophageal connecting piece 3 near the patch body 1 is provided with an arc-shaped skirt 2. The arc-shaped skirt 2 is arc-shaped. The lower esophageal connecting piece 3 and the arc-shaped skirt 2... The esophageal lower end connecting piece 3 is integrated with the patch body 1. The end of the patch body 1 away from the patch body 1 is longer than the plane of the patch body 1. The upper surface of the end of the patch body 1 near the esophageal lower end connecting piece 3 has two openings 4, both of which are arc-shaped. The left and right outer walls of the esophageal lower end connecting piece 3 are separated from the patch body 1 through the two openings 4. The interior of the esophageal lower end connecting piece 3 has an arc-shaped central hole 5, which is integrated with the esophageal lower end connecting piece 3. The patch body 1 is made of silk collagen material.

[0019] Furthermore, in the hiatal hernia repair surgery, the surgeon first aligns the arc-shaped end of the patch body 1 with the connection between the esophagus and stomach, utilizing its arc shape to naturally conform to the esophageal bend. Then, the lower esophageal connecting piece 3 is fixed to the upper surface of the patch body 1 away from the arc-shaped surface by sutures, so that the "U"-shaped lower esophageal connecting piece 3 covers the diaphragm tissue around the esophageal hiatus. At this time, the arc-shaped skirt 2 tightly wraps around the lower esophagus, using its arc structure to fill the gap between the esophagus and the patch, effectively preventing the reflux of gastric contents. The arc-shaped central hole 5 is precisely fitted onto the outer wall of the esophagus, ensuring unrestricted normal esophageal movement while reducing relative displacement between the esophagus and the patch through close fit. Then, the opening 4 is formed. The gap plays a crucial role. When the human body performs activities such as breathing and gastrointestinal peristalsis, the lower end esophageal connecting piece 3 can elastically deform within the opening 4 to adapt to pressure changes. This avoids excessive pressure or stress concentration on the diaphragm tissue caused by rigid fixation, thereby reducing the risk of tissue damage. Then, over time, the main body 1 of the patch, composed of silk collagen material, slowly degrades and gradually transforms into carbon dioxide and water and is excreted from the body within about 2 years. During this period, the human body's own tissues will gradually repair the esophageal hiatus under the support of the patch. When the patch is completely degraded, the esophageal hiatus has been repaired, achieving a perfect connection between patch support and tissue repair, thus achieving the purpose of treating hiatal hernia.

[0020] The patch body 1 is made of silk collagen, which has natural biocompatibility and can greatly reduce the rejection response of the human immune system, avoiding serious complications such as local inflammation, infection, and patch erosion of surrounding tissues caused by rejection. The silk collagen material has slow absorption properties, gradually degrading into carbon dioxide and water over approximately two years. This process matches the natural repair process of the esophageal hiatus tissue. Furthermore, the two ends of the patch body 1 are curved and flat, respectively, and together with the "U"-shaped esophageal lower end connecting piece 3, it can precisely fit the esophageal hiatus and... The complex anatomical structure of the surrounding tissues, the curved end conforming to the curvature of the esophageal-stomach junction, and the "U"-shaped esophageal lower end connecting piece 3 conforming to the curvature of the diaphragm around the esophageal hiatus, allow the patch to fit tightly with the tissue, improving the repair effect. In particular, the design of the curved skirt 2 and the curved central hole 5, the curved skirt 2 tightly wrapping the lower esophagus, and the curved central hole 5 precisely fitting the outer wall of the esophagus, both of which are highly adapted to the contour of the outer wall of the esophagus, can effectively fill the gap between the esophagus and the patch, significantly reducing the risk of gastric contents refluxing into the thoracic cavity through the gap.

[0021] Structural Description: Patch Body 1: Both ends are curved and flat, respectively. The whole serves as the basic framework of the 3D patch, providing an installation carrier and support base for other components. This irregular design is to fit the complex anatomical structure of the esophageal hiatus and surrounding tissues. The curved end can conform to the curvature of the connection between the esophagus and stomach, while the flat end facilitates the fit with the lower esophageal connecting piece 3 and surgical operations. It is composed of silk collagen material, which has excellent biocompatibility and can reduce the human immune rejection reaction. It also has slow absorption characteristics and is expected to degrade into carbon dioxide and water in about 2 years. It continuously provides stable support during the healing process of the esophageal hiatus and will naturally metabolize after the tissue repair is completed, avoiding permanent foreign body residue. As the core structure of the patch, it bears the main mechanical load of repairing the esophageal hiatus. Its material properties and shape design together ensure the stability and functionality of the patch after implantation. Arc-shaped skirt 2: An arc-shaped skirt connected to the main body 1 of the patch is located on the upper surface of the end of the lower esophageal connecting piece 3 near the main body 1 of the patch. It is an integral structure with the lower esophageal connecting piece 3. The arc-shaped design matches the contour of the outer wall of the esophagus, which can tightly wrap the lower esophagus and increase the contact area with the esophagus. During the repair of hiatal hernia, the arc-shaped skirt 2 can effectively reduce the gap between the patch and the esophagus, reduce the risk of gastric contents refluxing into the thoracic cavity through the gap. At the same time, its flexible arc-shaped structure can adapt to the movement of the esophagus in physiological activities such as swallowing and breathing, and avoid compression or friction damage to the esophagus. Esophageal lower end connector 3: The cross-section of the esophageal lower end connector 3 is U-shaped and wraps around the lower end of the esophagus. One end is sutured and fixed to the upper surface of the patch body 1 away from the arc-shaped surface, and the other end is longer than the plane of the patch body 1. It has an arc-shaped central hole 5 inside and is integrated with the arc-shaped skirt 2. The U-shaped design can fit the curvature of the diaphragm around the esophageal hiatus. The arc-shaped central hole 5 provides space for the esophagus to pass through and its shape matches the contour of the outer wall of the esophagus, providing the main support for the esophageal hiatus. By suturing and fixing it to the patch body 1, the overall stability of the patch is enhanced. The part that is longer than the plane of the patch body 1 can cover more diaphragmatic tissue, disperse intra-abdominal pressure, and prevent the stomach from re-herniating into the thoracic cavity. The arc-shaped central hole 5 ensures the normal passage of the esophagus while limiting the relative displacement between the esophagus and the patch, further improving the repair effect. Opening 4: Two arc-shaped openings 4 are made on the upper surface of the end of the patch body 1 near the lower end of the esophageal connecting piece 3. The left and right outer walls of the lower end of the esophageal connecting piece 3 are separated from the patch body 1 through the openings 4. The design of the arc-shaped openings 4 is coordinated with the overall shape of the patch and provides a certain amount of space for the lower end of the esophageal connecting piece 3 to move. The gap formed by the openings 4 allows the lower end of the esophageal connecting piece 3 to undergo slight elastic deformation when subjected to force, so as to adapt to the pressure changes brought about by physiological activities such as human respiration and gastrointestinal peristalsis. At the same time, this structure helps to reduce stress concentration between the patch and the diaphragm, reduce the risk of cutting damage to the diaphragm tissue by the edge of the patch, and improve the comfort and safety after patch implantation. Arc-shaped central hole 5: Located inside the lower end esophageal connector 3, it is integrated with the lower end esophageal connector 3 and is arc-shaped. Its shape and size are adapted to the outer wall of the esophagus. The inner wall is smooth, providing a dedicated channel for the esophagus, ensuring normal peristalsis and food transport during swallowing. It fits tightly against the outer wall of the esophagus, reducing gaps between the esophagus and the patch, preventing the reflux of gastric contents. The smooth inner wall avoids friction and irritation to the esophageal mucosa, reducing the probability of complications such as esophagitis and esophageal ulcers.

[0022] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A three-dimensional patch for hernia repair of esophageal hiatus, comprising a patch body (1) and an esophageal lower end tab (3), characterized in that: The lower esophageal end connecting piece (3) is in a "U" shape, the two ends of the patch main body (1) are respectively arc-shaped and planar, and the lower esophageal end connecting piece (3) is sutured and fixed on the upper surface of the patch main body (1) away from the arc-shaped surface; Wherein, the upper surface of the one end of the lower esophageal end connecting piece (3) close to the patch main body (1) is provided with an arc-shaped skirt (2) connected with the lower end of the esophagus and improving the mechanical support amount, the inside of the lower esophageal end connecting piece (3) is provided with an arc-shaped center hole (5), the inside of the lower esophageal end connecting piece (3) is arc-shaped, and the arc-shaped center hole (5) and the lower esophageal end connecting piece (3) are integrated, and the patch main body (1) is composed of silk collagen material.

2. The three-dimensional patch for hernia repair according to claim 1, wherein: The arc-shaped skirt (2) is arc-shaped, and the lower esophageal end connecting piece (3) and the arc-shaped skirt (2) are integrated.

3. The three-dimensional patch for hernia repair according to claim 1, wherein: The one end of the lower esophageal end connecting piece (3) away from the patch main body (1) is longer than the plane of the patch main body (1).

4. The three-dimensional patch for hernia repair of claim 1, wherein: The upper surface of the one end of the patch main body (1) close to the lower esophageal end connecting piece (3) is provided with two openings (4) connected with the lower end of the esophagus.

5. The three-dimensional patch for hernia repair according to claim 1, wherein: The two openings (4) are arc-shaped.

6. The three-dimensional patch for hernia repair of claim 1, wherein: The lower esophageal end connecting piece (3) is connected with the lower end of the esophagus and can suture and fix the lower end of the esophagus.

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