A stent for an interventional artificial heart valve and a preparation method thereof

An artificial heart valve and interventional technology, applied in the direction of heart valves, can solve problems such as failure to achieve ideal interventional treatment effects, unfavorable rapid and accurate release, and inability to reposition, so as to improve the success rate of surgery, not easy to shift, and reduce difficulty Effect

Active Publication Date: 2018-09-21
SHANGHAI NEWMED MEDICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the existing stents for interventional artificial heart valves are still in the initial stage of research, and there are few types of stents, which are not conducive to rapid and accurate release, cannot be repositioned once released, and are prone to displacement under blood pressure and washing after release. and other defects, it is still unable to achieve the ideal effect of interventional therapy

Method used

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  • A stent for an interventional artificial heart valve and a preparation method thereof
  • A stent for an interventional artificial heart valve and a preparation method thereof
  • A stent for an interventional artificial heart valve and a preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A stent for an interventional artificial heart valve, the stent is an elastic stent that can expand and contract in the radial direction, and includes a tubular structure part and a skirt-shaped opening structure part, the diameter of the skirt-shaped opening structure part is larger than the diameter of the tubular part , the tubular structure part and the skirt-shaped opening structure part are coaxially fixedly connected. The stent can expand and contract in the radial direction. When it is installed and transported, it is convenient to tighten the stent and put it into the delivery device with limited volume. Sufficient blood flow channels; the structure of the tubular structure and the skirt-shaped opening structure is consistent with the physiological structure of the natural valve (especially the natural physiological structure of the surrounding tissues of the mitral valve and tricuspid valve), and has a certain The self-positioning function is convenient for fa...

Embodiment 2

[0061] Such as Figure 1 to Figure 3 Shown is a stent 6 of an interventional artificial heart valve. The stent 6 is composed of a closed grid support unit. The stent 6 includes: a delivery connection part 1, a support unit 7, a leaflet suture hole 2, and a development hole at the lowest point of the leaflet 3. The upper suture hole 4, the lower suture hole 5, and the developing ball 8; the bracket 6 is made of a nickel-titanium tube after laser cutting and heat treatment, and the laser cutting machine cuts out the original shape of the valve bracket on the thin-walled nickel-titanium alloy tube. Then it is heat-set into a predetermined shape through molds of different shapes. After the bracket 6 is shaped, it includes two parts, one part is a tubular structure, and the other part is a skirt-shaped opening structure. The two parts are connected to each other by interconnected support units 7, wherein The diameter of the shaped opening structure is larger than the diameter of th...

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Abstract

The invention discloses a support for an involvement type artificial cardiac valve and a preparation method thereof and belongs to the technical field of involvement type medical apparatus and instruments. The support is an elastic support capable of extending and contracting in the radial direction, the support comprises a tubular structure part and a skirt-shaped opening structure part, the diameter of the skirt-shaped opening structure part is larger than that of the tubular structure part, and the tubular structure part and the skirt-shaped opening structure part are fixedly connected in a coaxial mode. Due to the fact that the support is capable of extending and contracting in the radial direction, so that the support is convenient to install, convey and release in the involvement treatment, the support and a natural valve are fitted with each other in physiologic structure, the support has a certain self-location function, the support is convenient to locate and release rapidly and accurately, and displacement and perivalvular leakage are not prone to occurring after releasing.

Description

technical field [0001] The invention belongs to the technical field of interventional medical devices, and in particular relates to a bracket of an interventional artificial heart valve and a preparation method thereof. Background technique [0002] The heart is a very important organ of the human body, which provides power for the blood circulation of the human body. The heart is divided into two parts, the left and the right. Each part contains a ventricle and an atrium. There are valves between the atria, ventricles, and arteries that prevent blood from flowing back. The valve between the left atrium and left ventricle is the mitral valve, the valve between the right atrium and right ventricle is the tricuspid valve, the valve between the left ventricle and the aorta is the aortic valve, and the valve between the right ventricle and the aorta is the aortic valve. The valve between the pulmonary arteries is the pulmonary valve. [0003] The above-mentioned valves will op...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/24
CPCA61F2/2418
Inventor 杨剑俞世强刘洋虞奇峰秦涛
Owner SHANGHAI NEWMED MEDICAL CO LTD
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