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A new type of folded patch integrated into a ring design

A patch, integrated technology, applied in the field of medical devices, can solve problems such as calcification, degeneration, tissue toxicity, etc., and achieve the effect of reducing use, improving surgical results, and reducing tissue toxicity.

Active Publication Date: 2018-06-05
KINGSTRONBIOCHANGSHU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Autologous pericardium or pericardial patch treated with glutaraldehyde is often used for valve leaflet expansion, and autologous pericardium or pericardial patch is preserved with liquid glutaraldehyde and treated with anti-calcification process. Heavy metal residues have potential tissue toxicity, and there are late degeneration and calcification problems

Method used

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  • A new type of folded patch integrated into a ring design
  • A new type of folded patch integrated into a ring design
  • A new type of folded patch integrated into a ring design

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The current treatment for mitral regurgitation mainly uses valve repair and valve replacement. Valve replacement often uses a mechanical valve for valve replacement. However, due to the small area of ​​the annulus and the fragility of the tissue in children, it is difficult to find a mechanical valve suitable for children in the market. Even if a mechanical valve that fits the individual size is found at that time, in the face of growing and developing children, the mechanical valve is faced with the problem of valve stenosis, that is, the mechanical valve cannot meet the growth and development needs of children. The rigid structure of the mechanical valve will cause the imbalance of ventricular diastolic and systolic function, resulting in the decline of left ventricular function in the later stage. At the same time, the application of mechanical valves requires life-long anticoagulant therapy, and for a developing child, the dosage of anticoagulant drugs needs to be a...

Embodiment 2

[0047] Please refer to the attached figure 1 , a folded patch, the folded patch includes a patch part (1) and a forming ring part (2), the patch part (1) and the forming ring part (2) are connected as one, and the forming ring part (2 ) is formed by folding one end of the patch part (1) in 2 to 7 layers, and there is a layer of polyester cloth or polyvinyl fluoride cloth between each layer of the forming ring part (2), and the forming ring part (2) is stitched (3) Different layers are sewn into a whole, and each stitch is knotted independently to form an independent unit.

Embodiment 3

[0049] Please refer to the attached figure 1 , a folded patch, the folded patch includes a patch part (1) and a forming ring part (2), the patch part (1) and the forming ring part (2) are connected as one, and the forming ring part (2 ) is formed by folding one end of the patch part (1) in 3 to 5 layers, the outer layer of the folded patch is wrapped with a layer of polyester cloth or polyvinyl fluoride cloth, and the forming ring part (2) is stitched together by sutures (3). The layers are sewn together as a whole, and each stitch is independently knotted to form a self-contained unit. The material of the patch part (1) is pericardium material, and the material of the patch part (1) has undergone anti-calcification treatment, and the calcification treatment process does not contain heavy metals, and is stored in a dry environment that is not soaked in glutaraldehyde. The shape of the patch part (1) is preset or cut arbitrarily by the doctor.

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Abstract

The invention relates to a novel folding patch, which comprises a patch part and a forming ring part. The patch part and the forming ring part are connected into a whole; and the forming ring part is formed by folding one end of the patch part or connecting other materials in a matching way. The novel folding patch has the advantages that an edge of the patch is folded to be used as a forming ring for fixing, meanwhile, an unfolded part is used as a valve leaflet for valve leaflet enlargement operation, a free cutting structure is designed, and the elasticity of a patch material is larger than that of a currently general forming ring, so that an operation effect is improved, and meanwhile, the usage of the operation forming ring is reduced. Meanwhile, a pericardium processed through an anti-calcification processing method and a dry-method storage technology is selected as the patch material, so that tissue toxicity reaction brought by free aldehyde is reduced.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a novel patch with the function of a forming ring. Background technique [0002] The treatment of mitral regurgitation in children has become one of the difficulties in cardiac surgery due to the diversity of disease mechanisms and potential development of children. [0003] At present, valve repair and valve replacement are mainly used in the treatment of mitral regurgitation; however, mechanical valves are often used for valve replacement. Not only is there a lack of mechanical valves suitable for children in the market, but the replaced mechanical valves cannot meet the developmental needs of children. At the same time, mechanical valves require lifelong anticoagulation, which brings additional medication risks. In addition, the rigid structure of the mechanical valve cannot meet the deformation capacity of the valve during the ventricular systolic movement, which wil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/24
CPCA61F2/24A61F2/2409A61F2/2412
Inventor 殷猛张海波刘静金大为
Owner KINGSTRONBIOCHANGSHU CO LTD
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