CN109589185B

CN109589185B - Double-layer hernia patch

Info

Publication number: CN109589185B
Application number: CN201910055826.0A
Authority: CN
Inventors: 刘少朋; 刘海潮; 李四桥; 姚飞
Original assignee: Luoyang Central Hospital
Current assignee: Luoyang Central Hospital
Priority date: 2019-01-18
Filing date: 2019-01-18
Publication date: 2021-03-23
Anticipated expiration: 2039-01-18
Also published as: CN109589185A

Abstract

The invention discloses a double-layer hernia patch which is composed of an inner-layer patch and an outer-layer patch, wherein a magnet is arranged on the outer-layer patch. The number of magnets is more than one, and different requirements are met in size and arrangement. According to the double-layer hernia patch, the inner layer patch resists the pressure of internal organs through pulling force, the outer layer patch resists the magnetic force through the magnetic force, and the outer layer patch introduces the magnetic force, so that the passive situation of the whole stress of the patch is changed, a larger reaction force is formed at the weakest position of the patch, the suture requirement in the operation is ingeniously reduced, and the material strength requirement of the patch is reduced.

Description

Double-layer hernia patch

Technical Field

The invention belongs to the field of implant interventional medical instruments, and relates to a double-layer hernia patch.

Background

Hernia refers to the condition that the viscera leave the original location and enter another location through the weak points, defects, or pores of the human body. The most common site for hernia is the abdomen. An abdominal external hernia refers to the protrusion of internal organs of the abdomen through congenital or acquired defects or weak areas of the abdominal wall to the body surface, forming a lump locally.

The introduction of polymeric networks in hernia patch suture surgery has been shown to reduce the recurrence rate and pain, thereby improving the healing efficacy of the patient. The implantation of the patch into the body makes surgery a tension-free prosthesis and the importance of the patch makes the patch a critical factor for surgery and prognosis.

Currently, patches are fixed to the body tissue using the outer circumference to resist the pressure of the internal organs. But also brings with it a number of problems: the suture requirement of the periphery of the patch and human tissues is high; the patch has high strength requirement and cannot be light to the maximum extent; the patch has large stress surface and uneven stress and generates deformation.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides the double-layer hernia patch, the inner-layer patch resists the pressure of internal organs through pulling force, the outer-layer patch resists the pressure of internal organs through magnetic force, and the outer-layer patch introduces the magnetic force; on the other hand, the pressure of the internal organs on the abdominal wall is reduced, the rehabilitation of the abdominal wall is facilitated, and the infiltration, adhesion and growth of fibrous connective tissue cells on the patch are facilitated.

In order to achieve the purpose, the invention adopts the following technical scheme:

a double-layer hernia patch comprises an inner patch and an outer patch, wherein a magnet is arranged on the outer patch.

Preferably: the number of the magnets is more than one. The specific number may be set to 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 15, 16, 18, 20.

Preferably: the magnet is a thin sheet, and two surfaces of the thin sheet are two poles respectively. The plurality of magnets are arranged such that the same magnetic poles are arranged in the same direction between different magnets.

Preferably: the magnets can be fixedly arranged on the outer-layer patch in an integrated forming mode, and can also be arranged and arranged according to the operation requirement in a buckling mode and the like.

Preferably: the inner layer patch and the outer layer patch can be one of a non-absorbable artificial synthetic mesh, an in-vivo absorbable artificial mesh patch, a biological tissue extraction engineering scaffold or a combination thereof. The patch material is not particularly limited in the present invention, and any patch material suitable for the structural requirements of the present invention may be applied to the present invention.

Further, the inner layer patch and the outer layer patch are both in a grid shape. Further, the grids are evenly distributed.

Preferably: the outer layer patch mesh is larger than the mesh of the inner layer patch.

Further, the magnets are disposed at mesh intersections of the outer patch.

Further, the magnet is externally covered with a human body adaptive material, such as: polypropylene, polycaprolactone, ethylene terephthalate, and the like.

Further, the magnets are the same in size and evenly distributed.

Further, the magnets are different in size.

Further, an external magnet matched with the magnet is arranged outside the body. The magnetic force between the external magnet and the magnet is used to resist the pressure of the internal organs to the patch.

The invention also provides an external magnetic device matched with the double-layer hernia patch for use, which comprises a shell, an external magnet and an air bag, wherein the external magnet and the air bag are arranged in the shell, and a pressure sensor probe is arranged in the air bag. The external magnet can slide in the shell under the condition of sensing magnetic force, and the external magnet squeezes the air bag under the condition of moving towards the air bag direction.

Further, a binding band is arranged outside the shell.

Further, the extracorporeal magnet slides within the housing under the influence of magnetic force, and changes to the balloon pressure are detected and transmitted by the pressure sensor probe.

Compared with the prior art, the invention has the beneficial effects that:

1. the inner patch resists the pressure of internal organs through pulling force and the outer patch resists the pressure of internal organs through magnetic force under the combined action of the pulling force and the magnetic force, and the outer patch introduces the magnetic force, so that on one hand, the passive situation of the whole stress of the patch is changed, a larger reaction force is formed at the weakest position of the patch, the suture requirement in the operation is ingeniously reduced, and the material strength requirement of the patch is reduced; on the other hand, the pressure of the internal organs on the abdominal wall is reduced, the rehabilitation of the abdominal wall is facilitated, and the infiltration, adhesion and growth of fibrous connective tissue cells on the patch are facilitated.

2. The design of two-layer patch inside and outside, the operation of making things convenient for going on, the outer patch of convenience postoperative takes out, and the operation in-process can fix the inlayer patch earlier, then sews the outer patch on the inlayer patch, makes the accurate placing in the biggest department of internal organ pressure in outer patch position. The mesh and magnets of the outer patch may both provide increased strength to the patch.

3. The use and the arrangement of a plurality of magnets expand the area of magnetic force action, and the magnets are connected by the grid lines to have the deformability, so that the patch is more suitable for use of a large patch.

4. The magnet and the external magnet are matched for use, the defect that the conventional patch can only fixedly resist the pressure of internal organs through the periphery of the patch and human tissues is overcome, the magnet is arranged at the position with the maximum pressure, and the internal organ pressure is resisted through the attraction or repulsion force between the magnet and the external magnet, so that the design has great significance: for the patch, a single action mode is changed, the patch can precisely act on the position with the maximum pressure, and the introduction of the magnetic force ensures that the requirements of suturing and the material strength of the patch body are not urgent, thereby greatly shortening the operation time. For internal organs, the restoration of the internal organs is guaranteed under the combined action of the peripheral tension and the magnetic force of the patch body. For the abdominal wall, the pressure of the internal organs on the abdominal wall is reduced, the rehabilitation of the abdominal wall is facilitated, and the infiltration, adhesion and growth of fibrous connective tissue cells on the patch are facilitated.

5. The arrangement of the external magnet makes the magnet on the patch have a magnetic force source, and the air bag and the pressure sensor probe are used for sensing the pressure of the external magnet on the air bag and reflecting the visceral pressure to a certain extent.

6. The hernia belt is an auxiliary means of tension-free repair, on one hand, the pressure on the abdominal wall is considered, on the other hand, external organs such as testis are considered, the invention effectively avoids the problems by adopting magnetic force, and the bandage is used for fixing an external magnetic device and is not hernia reduction in the present sense.

7. The magnet is designed into a sheet shape, has light weight, reduces the foreign body sensation in the body, has large action surface and is easy to fix.

8. The magnet is covered with human body adaptive material to prevent inflammation caused by direct contact between the magnet and human body.

9. The mesh of the outer layer patch is larger than that of the inner layer patch, the mesh size not only needs to consider air permeability and body fluid conveying capacity, but also needs to consider the strength of the patch, and the outer layer patch acts on the inner layer patch by a magnet, so that the strength requirement is low, and the mesh can be increased.

10. The magnet sets up the net junction at the outer patch, and outer patch plays the fixed action to the magnet, and the magnet plays the increasing strength effect to the outer patch, and every magnet occupies a plurality of nets, and the fixed action is showing more with the increasing strength effect.

Drawings

FIG. 1 is a schematic diagram of a patch bi-layer structure of the present invention;

FIG. 2 is a schematic diagram of the outer patch structure of the present invention (magnets of the same size);

FIG. 3 is a schematic diagram of an outer patch structure of the present invention (magnets of different sizes);

FIG. 4 is a schematic view of an outer patch structure of the present invention (magnets occupying multiple meshes);

FIG. 5 is a schematic view of the overall structure of the external magnet of the present invention;

FIG. 6 is a schematic view of the internal structure of the external magnet according to the present invention;

FIG. 7 is a schematic view of the working principle of the present invention;

the patch comprises an inner patch 1, an outer patch 2, a magnet 3, an external magnet 6, an external magnet 7, a bandage 8, a shell 9, an air bag 10, a pressure sensor probe 11, an internal organ 12, an abdominal wall 13, an external magnet I6 a, an external magnet II 6b.

Detailed Description

Example one

As shown in fig. 1, 2, 3 and 4, the double-layer hernia patch consists of an inner patch 1 and an outer patch 2, wherein a magnet 3 is arranged on the outer patch 2.

Preferably: the number of the magnets 3 is more than one. The specific number may be set to 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 15, 16, 18, 20.

Preferably: the magnet 3 is a thin slice, and two sides of the thin slice are respectively provided with two poles. The plurality of magnets are arranged such that the same magnetic poles are arranged in the same direction between different magnets.

Preferably: the magnets 3 can be fixedly arranged on the outer patch 2 in an integrated forming mode, and can also be arranged and arranged according to the operation requirement in a buckling mode and the like.

Preferably: the inner layer patch 1 and the outer layer patch 2 can be one of a non-absorbable artificial synthetic mesh, an in-vivo absorbable artificial mesh patch, a biological tissue extraction engineering scaffold or a combination thereof. The patch material is not particularly limited in the present invention, and any patch material suitable for the structural requirements of the present invention may be applied to the present invention.

Example two

On the basis of the first embodiment, the inner layer patch 1 and the outer layer patch 2 are both in a grid shape. Further, the grids are evenly distributed.

Preferably: the mesh of the outer layer patch 2 is larger than the mesh of the inner layer patch 1.

EXAMPLE III

As shown in fig. 2 or fig. 3, in the first or second embodiment, the magnet 3 is disposed at the grid intersection of the outer patch 2.

Example four

As shown in fig. 4, each of the magnets 3 occupies a plurality of meshes on the basis of the first or second embodiment.

EXAMPLE five

On the basis of the first embodiment or the second embodiment or the third embodiment or the fourth embodiment, the magnet 3 is externally covered with a human body adaptive material, such as: polypropylene, polycaprolactone, ethylene terephthalate, and the like.

EXAMPLE six

As shown in fig. 2 or fig. 4, on the basis of the first embodiment or the second embodiment or the third embodiment or the fourth embodiment or the fifth embodiment, the magnets 3 have the same size and are uniformly distributed.

EXAMPLE seven

As shown in fig. 3, the magnet 3 is different in size based on the first embodiment, the second embodiment, the third embodiment, the fourth embodiment or the fifth embodiment.

Further, one large magnet 3 is in the middle and several small magnets 3 are at the periphery of the large magnet.

Example eight

On the basis of the first embodiment, the second embodiment, the third embodiment, the fourth embodiment, the fifth embodiment, the sixth embodiment or the seventh embodiment, as shown in fig. 5 and 6, an extracorporeal magnet 6 matched with the magnet 3 is arranged in vitro. The magnetic force between the external magnet 6 and the magnet 3 is used to resist the pressure of the internal organs on the patch.

Example nine

As shown in fig. 5 and 6, the external magnet 6 comprises a shell 9, an external magnet 7 in the shell 9, and a balloon 10, wherein a pressure sensor probe 11 is arranged in the balloon 10. The binding band 8 is arranged outside the shell 9. The external magnet 7 slides inside the housing 9 under the action of magnetic force, and the change of pressure to the air bag 10 is detected and transmitted by the pressure sensor probe 11.

The operation and working principle of the invention are as follows: as shown in fig. 7, the inner patch 1 is placed in the body and the outer periphery is sutured with the body tissue, and the outer patch 2 is fixed at the position where the internal organ 12 exerts the maximum pressure on the inner patch 1. The number, size and arrangement rule of the magnets 3 on the outer patch 2 are determined according to the requirement. The first external magnet 6a and/or the second external magnet 6b are worn or bound in vitro, repulsion force is formed between the first external magnet 6a and the magnet 3, attraction force is formed between the second external magnet 6b and the magnet 3, and one or both of the first external magnet 6a and the second external magnet 6b can be selectively arranged according to needs. Under the action of the magnetic force, the magnet 3 enables the internal organs 12 to be reset, so that the abdominal wall 13 and the patch body 1 relieve pressure. The magnitude of the pressure measured by the pressure sensor probe 11 assists in determining the prognosis and determines the time for removing the magnet 3.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.

Claims

1. A double-layer hernia patch comprises an inner-layer patch (1) and an outer-layer patch (2), wherein the inner-layer patch (1) and the outer-layer patch (2) are more than one of a non-absorbable artificial synthetic mesh, an in-vivo absorbable artificial mesh patch and a biological tissue extraction engineering scaffold;

the outer-layer patch (2) is provided with a magnet (3), the inner-layer patch (1) and the outer-layer patch (2) are both in a grid shape, and the magnet (3) is arranged at the grid intersection of the outer-layer patch (2);

an external magnet (6) matched with the magnet (3) for use is arranged outside the body, the magnetic force between the external magnet (6) and the magnet (3) is used for resisting the pressure of internal organs to the patch, the external magnet (6) comprises a shell (9), an external magnet (7) in the shell (9) and an air bag (10), a pressure sensor probe (11) is arranged in the air bag (10), a binding band (8) is arranged outside the shell (9), the external magnet (7) slides in the shell (9) under the action of the magnetic force, the air bag (10) is extruded under the condition that the external magnet (7) moves towards the air bag (10), and the change of the pressure of the air bag (10) is detected and transmitted by the pressure sensor probe (11);

when the patch is used, the inner patch (1) is placed in a body, the periphery of the inner patch is sutured with body tissues, the outer patch (2) is fixed at the position where the internal organs have the maximum pressure on the inner patch (1), the number, the size and the arrangement rule of magnets are determined on the outer patch (2) according to needs, a first external magnet (6 a) and/or a second external magnet (6 b) are bound in vitro, repulsion force is formed between the first external magnet (6 a) and the magnets (3) on the outer patch, attraction force is formed between the second external magnet (6 b) and the magnets (3) on the outer patch, one or both of the first external magnet (6 a) and the second external magnet (6 b) are set according to needs, the magnets (3) on the outer patch return the internal organs (12) under the action of magnetic force, so that the abdominal wall (13) and the patch relieve the pressure, and the pressure measured by the pressure sensor probe (11) assists in judging the prognosis condition, and determines the magnet removal time.