CN109589185B - A double layer hernia patch - Google Patents

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 aninner patch 1, anouter patch 2, amagnet 3, anexternal magnet 6, anexternal magnet 7, abandage 8, ashell 9, anair bag 10, apressure sensor probe 11, aninternal organ 12, anabdominal 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 aninner patch 1 and anouter patch 2, wherein amagnet 3 is arranged on theouter patch 2.

Preferably: the number of themagnets 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: themagnet 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: themagnets 3 can be fixedly arranged on theouter 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: theinner layer patch 1 and theouter 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, theinner layer patch 1 and theouter layer patch 2 are both in a grid shape. Further, the grids are evenly distributed.

Preferably: the mesh of theouter layer patch 2 is larger than the mesh of theinner layer patch 1.

EXAMPLE III

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

Example four

As shown in fig. 4, each of themagnets 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, themagnet 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, themagnets 3 have the same size and are uniformly distributed.

EXAMPLE seven

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

Further, onelarge magnet 3 is in the middle and severalsmall 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, anextracorporeal magnet 6 matched with themagnet 3 is arranged in vitro. The magnetic force between theexternal magnet 6 and themagnet 3 is used to resist the pressure of the internal organs on the patch.

Example nine

As shown in fig. 5 and 6, theexternal magnet 6 comprises ashell 9, anexternal magnet 7 in theshell 9, and aballoon 10, wherein apressure sensor probe 11 is arranged in theballoon 10. Thebinding band 8 is arranged outside theshell 9. Theexternal magnet 7 slides inside thehousing 9 under the action of magnetic force, and the change of pressure to theair bag 10 is detected and transmitted by thepressure sensor probe 11.

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

Translated fromChinese

1.一种双层疝气补片，由内层补片（1）和外层补片（2）构成，所述内层补片（1）和所述外层补片（2）为不可吸收的人工合成网、体内可吸收的人工网状补片、生物组织提取工程支架之中的一种以上；1. A double-layer hernia patch, comprising an inner layer patch (1) and an outer layer patch (2), the inner layer patch (1) and the outer layer patch (2) being non-absorbable More than one of the artificial synthetic mesh, the in vivo absorbable artificial mesh patch, and the biological tissue extraction engineering scaffold;所述外层补片（2）上设置磁体（3），所述内层补片（1）和所述外层补片（2）均为网格状，所述磁体（3）设置在所述外层补片（2）的网格交汇处；A magnet (3) is arranged on the outer layer patch (2), the inner layer patch (1) and the outer layer patch (2) are both grid-shaped, and the magnet (3) is arranged on the the mesh intersection of the outer patch (2);体外配套设置有与所述磁体（3）配合使用的体外磁器（6），所述体外磁器（6）与所述磁体（3）之间的磁力用以抵抗内脏器官对补片的压力，所述体外磁器（6）包含外壳（9）和所述外壳（9）内的体外磁体（7）、气囊（10），所述气囊（10）内设置压力传感器探头（11），所述外壳（9）外设置有绑带（8），所述体外磁体（7）在磁力的作用下在所述外壳（9）内滑动，所述体外磁体（7）向所述气囊（10）方向运动的情况下挤压气囊（10），对所述气囊（10）压力的变化由所述压力传感器探头（11）探知并传输；An external magnet (6) that is used in conjunction with the magnet (3) is provided in vitro, and 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, so The external magnet (6) includes a housing (9), an external magnet (7) and an airbag (10) inside the housing (9), a pressure sensor probe (11) is arranged in the airbag (10), and the housing ( 9) A strap (8) is provided outside, the external magnet (7) slides in the outer casing (9) under the action of magnetic force, and the external magnet (7) moves in the direction of the air bag (10). Squeezing the airbag (10) under the circumstances, the change of the pressure of the airbag (10) is detected and transmitted by the pressure sensor probe (11);补片在使用时，内层补片（1）放入体内并且外周与机体组织缝合，在内脏器官对内层补片（1）压力最大处固定外层补片（2），外层补片（2）上根据需要确定磁体的数量、大小、排布规则，在体外捆绑体外磁器一（6a）和/或体外磁器二（6b），体外磁器一（6a）与外层补片上的磁体（3）之间为斥力，体外磁器二（6b）与外层补片上的磁体（3）之间为引力，体外磁器一（6a）和体外磁器二（6b）根据需要设置其一或两者都选，在磁力的作用下外层补片上的磁体（3）使内脏器官（12）归位，使腹壁（13）和补片减轻压力，通过压力传感器探头（11）测得的压力大小辅助判断预后情况，并决定磁体的取出时间。When the patch is in use, the inner patch (1) is put into the body and the periphery is sutured with the body tissue. (2) Determine the number, size, and arrangement rules of the magnets as needed, and bind the external magnet one (6a) and/or the external magnet two (6b) outside the body, the external magnet one (6a) and the magnets on the outer patch ( 3) is the repulsion force between the external magnets two (6b) and the magnet (3) on the outer patch is the attractive force, the external magnet one (6a) and the external magnet two (6b) are set to one or both of them as needed. Optionally, under the action of magnetic force, the magnet (3) on the outer layer patch makes the internal organs (12) return to their positions, so that the abdominal wall (13) and the patch reduce the pressure, and the pressure measured by the pressure sensor probe (11) is used to assist judgment. Prognosis of the situation, and to decide the time of magnet removal.

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