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A structure-fit transcatheter aortic valve implantation device

An implanted device and aortic valve technology, applied in the field of medical devices, can solve problems such as misalignment, falling off, valve implantation failure, etc., and achieve the effect of reducing falling off and increasing success

Active Publication Date: 2020-11-06
NANJING SAINT MEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the complexity of the disease structure, only relying on friction to position and fix the valve stent will cause the valve to be pulled and squeezed by the original structure after implantation, resulting in misalignment, resulting in the risk of displacement, falling off or popping out. resulting in the failure of valve implantation surgery

Method used

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  • A structure-fit transcatheter aortic valve implantation device
  • A structure-fit transcatheter aortic valve implantation device
  • A structure-fit transcatheter aortic valve implantation device

Examples

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Embodiment Construction

[0026] Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that the examples are only used to illustrate the present invention and not to limit the protection scope of the present invention. In addition, it should be understood that after reading the disclosure of the present invention, those skilled in the art may make various changes or modifications to the present invention, and these equivalent forms also fall within the scope of protection defined by the present invention.

[0027] like figure 1 As shown, the valve stent 100 includes a tubular body 105 consisting of three parts, namely a first longitudinal end 101 , a middle part 102 and a second longitudinal end 103 , all of which are made of a mesh structure. The material of the tubular body 105 may be, for example, iron, nickel, aluminum, titanium and / or alloys of these metals as well as other elements. Reference numeral 111 designates transparent artificia...

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Abstract

A structure-fit transcatheter aortic valve implantation device. The invention discloses an aortic valve implantation device that is delivered through a catheter and does not rely solely on frictional force for fixation. The device is equipped with multiple support arms in the middle of the tubular body, which is in a "D" shape after being fully opened, and is fixed between the narrowest part of the aorta near the heart and the narrowest part above the aortic valve annulus to realize the support arm. The outer surface is fully fitted with the surrounding tissue, and the support arm includes three landing areas and two bending parts, which can accurately control the valve to be released at the position of the aortic valve annulus, avoiding the existing problems caused by simple friction fixation. adverse events, thereby better addressing aortic valve disease.

Description

technical field [0001] The invention belongs to the field of medical devices, and in particular relates to a structure-fit transcatheter aortic valve implantation device, which can be implanted through the aortic approach or through the apical approach. Background technique [0002] Heart valve disease affects approximately 300,000 people worldwide each year. These disorders involve abnormal valve leaflet tissue, for example, excessive tissue growth, tissue degradation or rupture, tissue hardening or calcification, or abnormal tissue misplacement throughout the cardiac cycle, known as annular dilation, ventricular remodeling, thereby Causes reduced valve function, eg, leakage or backflow of blood (ie, valvular insufficiency) or resistance to normal blood flow (ie, valvular stenosis). [0003] At present, the existing transcatheter aortic valve implantation valves all rely on the unique characteristics of the stent material, and only use friction to fix the implanted heart v...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/24
CPCA61F2/2418A61F2/2466A61F2/2463A61F2/2409A61F2250/0039A61F2/2436A61F2230/0034A61F2250/0036A61F2220/0008
Inventor 马琛明
Owner NANJING SAINT MEDICAL TECH CO LTD
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