Delayed fixed patch for hiatus hernia repair surgery

Abstract

The utility model relates to the technical field of medical materials, in particular to a delayed fixing type patch for an esophageal hiatus hernia repair operation, which comprises a patch body, the patch body is of a sheet-shaped structure and is provided with a binding face used for being contacted with diaphragm, and a barb structure used for being connected with the diaphragm is arranged on the binding face. According to the utility model, the barb structure is arranged on the binding surface on the patch body, so that when the binding surface is bound with the diaphragm, the binding surface can be hooked into the diaphragm by virtue of the peristalsis barb structure of the diaphragm so as to fix the patch body.

Description

Technical Field

[0001] The utility model relates to the technical field of medical materials, and more specifically, to a delayed fixed patch for esophageal hiatal hernia repair surgery. Background Art

[0002] Esophageal hiatal hernia is a common digestive system disease: abdominal organs enter the thoracic cavity through the enlarged esophageal hiatus. Esophageal hiatal hernia is often complicated with gastroesophageal reflux symptoms such as heartburn, acid reflux, belching, chest pain, early satiety, dysphagia, etc.; sliding esophageal hiatal hernia and other patients with ineffective conservative treatment need surgical treatment. At present, laparoscopic anti-reflux surgery has become the standard surgical procedure for treating esophageal hiatal hernia, including esophageal hiatal hernia repair and fundoplication. However, the traditional simple suture repair method has a certain recurrence rate, and currently, patches are mostly used to reinforce the repair of esophageal hiatal hernia. There are still many problems with the currently used esophageal hiatal hernia patches: the existing patches have a certain self-adhesiveness, and it is easy to adhere to the surrounding tissues when placing the patch, making it difficult to lay flat and adjust the position. Moreover, after the patch is adjusted multiple times, the self-adhesiveness of the patch disappears, and the patch is easy to shift; due to the weak adhesiveness of the patch, it is often necessary to nail and fix it again after placing the patch; the nail length is relatively long, and when nailing, there is a risk of damaging important organs and blood vessels; after nailing and fixing, due to the use of nails for fixation, the local stress is large near the nails, and the patch is easy to wrinkle, resulting in uneven tension in each part of the patch and unreliable fixation in some parts.

[0003] There is an existing Chinese invention with the publication number CN112022424B, which discloses a super-lightweight large-mesh hernia repair patch and its preparation method, belonging to the technical field of hernia repair patches. The super-lightweight large-mesh hernia repair patch is woven from medical polypropylene monofilaments with a diameter of 0.10 mm - 0.20 mm, its thickness is 0.29 mm - 0.49 mm, the unit area weight is 20 g / m2 - 40 g / m2, and the pore diameter is 2 mm - 5 mm; the large mesh is a parallel hexagonal mesh, and there is a common side between any two adjacent large meshes; the hexagonal mesh is axisymmetric about the center, the longitudinal pore diameter is 4 mm - 5 mm, and the transverse pore diameter is 2 mm - 3 mm. This invention has the positive effects of a thinner mesh, larger mesh holes, better flexibility, less foreign body sensation, greatly reducing the pain of patients and improving the comfort of patients.

[0004] However, in the above technical solution, the patch can only play a role in blocking the hiatal hernia, and there is no related structure for fixing the position of the patch. Therefore, it can only rely on the traditional method of nailing the patch around the hiatal hernia with nails. In this process, in addition to the problem of the cumbersome nailing process, there is also a risk of the nail head damaging important organs or blood vessels; after nailing and fixing, due to the use of nails for fixation, the local stress is large near the nails, and the patch is easy to wrinkle. Content of the Utility Model

[0005] To solve the above problems, the present utility model provides a delayed fixed patch for esophageal hiatus hernia repair surgery. By providing barbed structures on the fitting surface of the patch body, when the fitting surface fits against the diaphragm, the barbed structures can be hooked into the diaphragm by the peristalsis of the diaphragm itself to achieve the fixation of the patch body, eliminating the need for nail fixation.

[0006] To solve the above technical problems, the technical solution adopted by the present utility model is: a delayed fixed patch for esophageal hiatus hernia repair surgery, including a patch body. The patch body is a sheet structure, and the patch body has a fitting surface for contacting the diaphragm, and barbed structures for connecting with the diaphragm are provided on the fitting surface.

[0007] In this technical solution, the patch body is a sheet structure, achieving as large a coverage area as possible with less material used, and can completely cover the hiatal hernia to achieve a blocking effect. At the same time, due to the less material used in the sheet structure, the foreign body sensation of the patch body in the human body and the impact on the normal operation of human organs are reduced, improving the user comfort and the safety of the patch use. The human diaphragm continuously contracts and relaxes, causing the surface of the diaphragm to continuously peristalsis. The fitting surface of the patch body fits against the human diaphragm, and barbed structures are provided on the fitting surface. When the patch body fits on the diaphragm, the barbed structures also fit on the surface of the diaphragm. With the peristalsis of the diaphragm, the diaphragm tissue is squeezed into the barbed structures and hooked by the barbed structures, thereby firmly fixing the patch body on the diaphragm. In this process, it relies on the natural peristalsis of the diaphragm itself. The user only needs to press the patch body on the surface of the diaphragm for a period of time to achieve fixation, eliminating the need for additional nailing. The operation is simple, reducing the workload of the user and improving the safety of the patch.

[0008] Preferably, the barbed structure includes a connecting portion. One end of the connecting portion is connected to the fitting surface, and barbs are provided at the other end of the connecting portion, and the barbs are inclined towards the direction where the fitting surface is located.

[0009] Preferably, two barbs are provided, and the two barbs are oppositely installed at the end of the connecting portion.

[0010] Preferably, multiple barbed structures are provided, and the multiple barbed structures are densely distributed on the fitting surface of the patch body.

[0011] Preferably, an isolation layer is further provided on the fitting surface of the patch body.

[0012] Preferably, the isolation layer fits against the fitting surface of the patch body, and the barbed structure is located in the isolation layer.

[0013] Preferably, the isolation layer is a structure made of a dissolvable material.

[0014] Preferably, the isolation layer is an elastic hemostatic material structure.

[0015] Preferably, the patch body has elasticity.

[0016] Preferably, the length of the patch body is 60 mm to 80 mm, and the width of the patch body is 30 mm to 50 mm.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows: In the present utility model, barbs are arranged on the fitting surface of the patch body, which can be fixed with the peristalsis of the diaphragm without stapling, and scar tissue will be induced to form over time, making the fixation more reliable. There is a certain distance between the connecting part that holds the barbs in the air and the patch body, providing a certain space for the diaphragm tissue to enter. An isolation layer is provided, making it difficult for the barb structure to adhere to the surrounding tissues. The isolation layer is made of a dissolvable material and can dissolve rapidly after the patch body fits the diaphragm. After the barbs are inserted into the diaphragm, the patch body has elasticity and can fit the peristalsis of the diaphragm without causing interference to the normal function of the diaphragm. Description of the Drawings

[0018] Figure 1 is a three-dimensional view of the delayed fixation patch for esophageal hiatal hernia repair surgery of the present utility model;

[0019] Figure 2 is a side view of the delayed fixation patch for esophageal hiatal hernia repair surgery of the present utility model.

[0020] In the drawings: 1, patch body; 2, barb structure; 3, isolation layer; 11, fitting surface; 21, connecting part; 22, barb. Detailed Embodiments

[0021] The drawings are only for illustrative purposes and should not be construed as limitations on this patent; for better illustration of this embodiment, some components in the drawings will be omitted, enlarged or reduced, and do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. The positional relationships described in the drawings are only for illustrative purposes and should not be construed as limitations on this patent.

[0022] In the attached drawings of the embodiments of the present utility model, the same or similar reference numerals correspond to the same or similar components; in the description of the present utility model, it should be understood that if there are terms such as "upper", "lower", "left", "right", "long", "short", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the attached drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the attached drawings are only for illustrative purposes and cannot be understood as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0023] The technical solution of the present utility model will be further specifically described below through specific embodiments and in conjunction with the attached drawings:

[0024] Embodiment 1

[0025] As Figure 1 shown, the delayed fixed patch for esophageal hiatal hernia repair surgery includes a patch body 1. The patch body 1 is a sheet structure. The patch body 1 has a fitting surface 11 for contacting the diaphragm, and a barbed structure 2 for connecting with the diaphragm is arranged on the fitting surface 11. The patch body 1 is a sheet structure, and a relatively large covering area is obtained with less material used, so that the hiatal hernia can be completely covered to achieve a blocking effect. At the same time, because less material is used in the sheet structure, the foreign body sensation of the patch body 1 in the human body and the influence on the normal operation of human organs are reduced, and the use comfort of the patient and the safety of the patch use are improved. The human diaphragm is constantly contracting and relaxing, so that the surface of the diaphragm is constantly wriggling. The fitting surface 11 of the patch body 1 is attached to the human diaphragm, and the barbed structure 2 is arranged on the fitting surface 11. When the patch body 1 is attached to the diaphragm, the barbed structure 2 is also attached to the surface of the diaphragm. As the diaphragm wriggles, the diaphragm tissue is squeezed into the barbed structure 2 and hooked by the barbed structure 2, thereby firmly fixing the patch body 1 on the diaphragm. In this process, it relies on the natural peristalsis of the diaphragm itself. The user only needs to press the patch body 1 on the surface of the diaphragm for a period of time to achieve fixation, without the need for additional stapling. The operation is simple, reducing the workload of the user and improving the safety of the patch.

[0026] As Figure 2As shown in the figure, the barbed structure 2 includes a connecting portion 21. One end of the connecting portion 21 is connected to the fitting surface 11, and the other end of the connecting portion 21 is provided with barbs 22 which incline towards the fitting surface 11. The barbs 22 are used to insert into and hook the diaphragmatic tissue, thereby realizing the fixation of the patch body 1. If the diaphragmatic tissue hooked by the barbs 22 is too shallow, the hooked diaphragmatic tissue is prone to break, and the barbs 22 lose their fixing effect. Therefore, a connecting portion 21 is also provided. One end of the connecting portion 21 is fixedly connected to the patch body 1, and the barbs 22 are arranged at the other end of the connecting portion 21. The connecting portion 21 lifts the barbs 22, so that there is a gap between the barbs 22 and the patch body 1, and more diaphragmatic tissue can enter the gap, making it not easy for the barbs 22 to hook and break the diaphragmatic tissue, resulting in fixation failure. One end of the barbs 22 is connected to the connecting portion 21, and the barbs 22 incline towards the fitting surface 11, so that when the surface of the diaphragm moves away from the fitting surface 11, the movement direction of the diaphragm is exactly the direction where the barbs 22 are located. The farther the diaphragm is from the fitting surface 11, the deeper the barbs 22 insert into the diaphragmatic tissue, ensuring that the barbs 22 cannot be pulled out from the diaphragm.

[0027] As Figure 2 shown in the figure, there are two barbs 22, and the two barbs 22 are oppositely installed at the end of the connecting portion 21. During the peristalsis of the diaphragm, in addition to the movement of the surface of the diaphragm in the direction of approaching or moving away from the patch body 1, there may also be movement in a plane parallel to the fitting surface 11. If the peristaltic direction of the diaphragm is the same as the direction in which the barbs 22 move away from the connecting portion 21, it is possible for the diaphragmatic tissue to pull out the barbs 22 during this process. Therefore, there are two barbs 22, which are oppositely installed at the end of the connecting portion 21. The directions in which the two oppositely arranged barbs 22 move away from the connecting portion 21 are opposite, so it is impossible for the diaphragm to move in opposite directions simultaneously during peristalsis, resulting in the diaphragmatic tissue pulling out the two barbs 22 at opposite positions at the same time, ensuring that the barbs 22 will not accidentally lose their fixing effect and cause the patch body 1 to fall off the diaphragm, improving the reliability of the patch.

[0028] As Figure 1As shown, a plurality of barbed structures 2 are provided, and the plurality of barbed structures 2 are densely distributed on the fitting surface 11 of the patch body 1. In order to ensure that the patch body 1 can completely fit the diaphragmatic surface of different shapes and cooperate with the normal peristalsis of the diaphragm, the patch body 1 is made of a soft material and is easy to deform to fit the diaphragmatic surface. If a small number of isolated barbed structures 2 are provided, although the whole patch body 1 can be prevented from falling off, the barbed structures 2 can only ensure that the vicinity of the part of the patch body 1 connected to them can fit the diaphragmatic surface, and cannot ensure that the part of the patch body 1 far from the barbed structures 2 does not change. The part of the patch body 1 far from the barbed structures 2 can cause a gap between the patch body 1 and the adjacent surface by deforming, reducing the effect of the patch body 1 in blocking the diaphragmatic hernia. Therefore, a plurality of barbed structures 2 are provided and densely distributed on the fitting surface 11 of the patch body 1. The densely distributed barbed structures 2 can play a fixing role on the entire fitting surface 11, ensuring that all parts of the patch body 1 can fit the diaphragmatic surface and will not generate a gap with the diaphragmatic surface due to deformation.

[0029] Embodiment 2

[0030] This embodiment is similar to the above Embodiment 1, the difference is that, as Figure 1 shown, an isolation layer 3 is further provided on the fitting surface 11 of the patch body 1. Since the barbed structure 2 may insert into human tissues as long as it comes into contact with human tissues, and it is difficult to pull out after insertion. And transporting the patch to the diaphragmatic hernia requires passing through a large number of other human tissues, and it is difficult to avoid collisions with human tissues during this process. If other human tissues are inserted by the barbed structure 2, on the one hand, it takes time to take it out again, reducing the work efficiency of medical staff, and on the other hand, it will also cause damage to other human tissues. Therefore, an isolation layer 3 needs to be provided on the fitting surface 11 of the patch body 1 to isolate the barbed structure 2 from the outside and prevent the barbed structure 2 from accidentally connecting with other human tissues.

[0031] As Figure 2 shown, the isolation layer 3 is attached to the fitting surface 11 of the patch body 1, the barbed structure 2 is located in the isolation layer 3, and the thickness of the isolation layer 3 is thicker than the height of the barbed structure 2. The isolation layer 3 covers the entire fitting surface 11 of the patch body 1, ensuring that all the barbed structures 2 located on the fitting surface 11 of the patch body 1 are wrapped by the isolation layer 3, realizing the isolation of the barbed structure 2 from the outside. The thickness of the isolation layer 3 is thicker than the height of the barbed structure 2, ensuring that the barbed structure 2 will not protrude from the isolation layer 3 and guaranteeing the isolation effect.

[0032] As Figure 2As shown, the isolation layer 3 is made of a dissolvable material. After the isolation layer 3 comes into contact with the surface of the diaphragm, the isolation layer 3 can be quickly dissolved, exposing the barbed structure 2, enabling the barbed structure 2 to function properly. In this process, no additional operation by the user is required. The user only needs to press the patch body 1 to make it fit the surface of the diaphragm. The isolation layer 3 can automatically dissolve and, along with the natural peristalsis of the diaphragm, achieve the fixing function of the barbed structure 2, with simple operation.

[0033] As Figure 2 shown, the isolation layer 3 is a structure of elastic hemostatic material. Since the barbed structure 2 may cause damage to the surface of the diaphragm when inserted, if not treated, it may cause wound infection. Therefore, the isolation layer 3 is a structure of elastic hemostatic material. When using the patch, the user applies pressure to the patch body 1 towards the surface of the diaphragm. The isolation layer 3 is elastic. After being subjected to pressure, the isolation layer 3 undergoes compressive deformation, and the thickness of the isolation layer 3 becomes thinner, allowing the barbed structure 2 to pierce through the isolation layer 3 and insert into the diaphragm. After the barbed structure 2 inserts into the diaphragm, it will cause wounds and bleeding on the surface of the diaphragm. At this time, under the action of its own elasticity, the isolation layer 3 will closely adhere, playing a role in compressing and stopping bleeding from the wound. At the same time, the isolation layer 3 is made of hemostatic material, which is beneficial to the hemostasis and healing of the wound, avoiding the occurrence of wound infection.

[0034] Embodiment 3

[0035] This embodiment is similar to the above Embodiment 1, except that, as Figure 1 shown, the patch body 1 has elasticity. The peristalsis of the diaphragm is achieved through the contraction and relaxation of muscle tissue. During this process, the shape of the diaphragm tissue will change periodically. Therefore, the patch body 1 has elasticity to adapt to the changes on the surface of the diaphragm, avoiding pulling on the diaphragm and affecting its normal function.

[0036] As Figure 1 shown, the length of the patch body 1 is between 60 mm and 80 mm, and the width of the patch body 1 is between 30 mm and 50 mm. The patch body 1 needs to be able to cover the entire diaphragmatic hernia while having as small a volume as possible for easy transportation to the location of the diaphragmatic hernia in the human body. Therefore, the length of the patch body 1 needs to be set between 60 mm and 80 mm, and the width between 30 and 50 mm to meet the above requirements.

[0037] Obviously, the above embodiments of the present invention are merely examples given for clearly explaining the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. A delayed fixation patch for hiatal hernia repair surgery, characterized in that: The patch body (1) comprises a patch body (1) which is a sheet-like structure and has a fitting surface (11) for contacting the diaphragm. The fitting surface (11) is provided with a barb structure (2) for connecting with the diaphragm.

2. The delayed fixation patch for hiatal hernia repair surgery according to claim 1, characterized in that: The barb structure (2) comprises a connecting portion (21), one end of the connecting portion (21) is connected to the fitting surface (11), and the other end of the connecting portion (21) is provided with a barb (22), and the barb (22) is inclined in the direction of the fitting surface (11).

3. The delayed fixation patch for hiatal hernia repair surgery according to claim 2, characterized in that: Two barbs (22) are provided, and the two barbs (22) are connected to the ends of the connecting portion (21) opposite to each other.

4. The delayed fixation patch for hiatal hernia repair surgery according to claim 1, characterized in that: A plurality of the barb structures (2) are provided, and the plurality of barb structures (2) are densely distributed on the fitting surface (11) of the patch body (1).

5. The delayed fixation patch for hiatal hernia repair surgery according to claim 1, characterized in that: An insulating layer (3) is also provided on the fitting surface of the patch body (1).

6. The delayed fixation patch for hiatal hernia repair surgery according to claim 5, characterized in that: The insulating layer (3) is in contact with the contact surface (11) of the patch body (1), and the barb structure (2) is located in the insulating layer (3).

7. The delayed fixation patch for hiatal hernia repair surgery according to claim 5, characterized in that: The insulating layer (3) is a soluble material structure.

8. The delayed fixation patch for hiatal hernia repair surgery according to claim 5, characterized in that: The insulating layer (3) is a hemostatic material structure having elasticity.

9. The delayed fixation patch for hiatal hernia repair surgery according to claim 1, characterized in that: The patch body (1) is stretchable.

10. The delayed fixation patch for hiatal hernia repair surgery according to claim 1, characterized in that: The length of the patch body (1) is between 60 mm and 80 mm, and the width of the patch body (1) is between 30 mm and 50 mm.

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