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Automatic-expansion patch and using method thereof

A patch and mesh technology, applied in the field of self-opening patch, can solve the problems of insufficient support, easy recurrence, inconvenient flattening to cover weak areas or defect areas, etc., and achieves short operation time and good flattening effect. Effect

Active Publication Date: 2015-04-15
贾忠
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention solves the defect that the existing patch is overall soft and easy to fold, but it is inconvenient to flatten and cover the weak area or defective area, and provides a self-expanding patch, which is convenient to fold, but can be automatically opened, which is convenient flatten
[0006] The present invention also solves the defects that the existing patch is relatively soft overall, has insufficient supporting effect, and is easy to relapse, and provides a self-expanding patch, which forms a strong supporting force after automatic expansion, and is not easy to relapse

Method used

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  • Automatic-expansion patch and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: A kind of self-expanding patch (see attached figure 1 ), including a mesh 1 woven into a mesh shape and a support 2 that can be strengthened from opening. The mesh has two layers, and the bracket is compounded between the two layers of mesh. The stent is a flat structure made of medical memory alloy. There are 5 stents in total. The 5 stents are radially arranged relative to the center of the patch. The width of the stent is 2 mm, and the thickness of the stent is equal to the thickness of the mesh weaving material. The overall patch is circular, the length of the bracket is less than the radius of the patch, and there is a gap between the end of the bracket and the periphery of the patch, and the gap is 3 mm.

[0031] How to use the self-expanding patch: (1) Select the appropriate patch according to the area of ​​the part to be reinforced. When selecting, the patch can support the entire reinforced part; the area of ​​the patch should be larger than the...

Embodiment 2

[0036] Embodiment 2: A kind of self-expanding patch (see attached figure 2 ), the difference from Example 1 is that: the periphery of the patch is compounded with a stent 2, and the shape enclosed by the stent adapts to the shape of the periphery of the patch. The peripheral stent was separated from the ends of the radial stent with a gap of 2 mm. The peripheral stent has the same structure as the radial stent, and the peripheral stent is closed. Refer to Example 1 for all the other structures.

Embodiment 3

[0037] Embodiment 3: A kind of self-expanding patch (see attached image 3 ), the difference from Example 2 is that the stent 2 on the periphery of the patch is segmented, the number of radial stents is the same as the number of segments on the periphery, and the middle part of each segment is a corresponding radial stent connected at the ends. Refer to Embodiment 2 for the rest of the structure, and the self-expanding patch utilizes the disconnected part of the peripheral bracket to facilitate folding.

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Abstract

The invention relates to an automatic-expansion patch and a using method of the automatic-expansion patch. The automatic-expansion patch overcomes the defect that an existing patch is soft on the whole and can be conveniently contracted, but the patch cannot be conveniently expanded to be flat so as to cover a weak area or a defect area. A net sheet is combined with an automatic-expansion reinforcing support, and the support is arranged in a radiating mode relative to the center of the patch; meshes of the net sheet cover the surface of the support. Due to the fact that the net sheet is combined with the automatic-expansion reinforcing support, before the patch is used, the support is soft, and contraction of the patch cannot be affected. After the patch is put into a human body, the support expands automatically or through the external force, the support is arranged in the radiating mode, and therefore the support can support the whole patch, portions without expanding cannot be reserved on the patch, the expansion effect is good, the operation that a machine stretches into the interior to conduct manual intervention is not required, expansion of the patch is accomplished at one time, and the operation time is short.

Description

technical field [0001] The invention relates to a patch structure and its use method, especially a self-expanding patch that can be opened without manual intervention and its use method. Background technique [0002] The patch is a material used to supplement the strength of the tissue. It is mainly aimed at the weak or defective area of ​​the abdominal wall to prevent the organs or tissues in the abdominal cavity from protruding from the weak or defective area of ​​the abdominal wall. In recent years, mesh has been widely used in surgery, especially in the treatment of hernia. Due to the existence of mesh, the treatment of hernia has undergone fundamental changes. [0003] At present, the synthetic materials used in the patch are divided into two categories: the first category is non-absorbable polyester patch, polypropylene patch, and expanded polytetrafluoroethylene patch; the second category is a composite material combined with various materials. patches. The patch wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/00
Inventor 贾忠王平朱妍慧谢琦
Owner 贾忠
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