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Valve stent applied to aortic valve regurgitation

An aortic valve and aortic technology, applied in the field of medical devices, can solve the problems of TAVR valve fixation difficulties and low operability, and achieve the effect of simple processing and firm structure

Pending Publication Date: 2021-06-18
SHANGHAI HANYU MEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the technical problems in the prior art that the TAVR valve for the treatment of aortic regurgitation is difficult to fix at the native valve annulus, can only be implanted through the apex of the heart, and has low operability through femoral artery implantation

Method used

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  • Valve stent applied to aortic valve regurgitation
  • Valve stent applied to aortic valve regurgitation
  • Valve stent applied to aortic valve regurgitation

Examples

Experimental program
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Embodiment

[0032] Such as figure 1 As shown, in order to overcome the deficiencies of the prior art, the present invention provides a valve stent for treating aortic regurgitation that can be firmly fixed at the aortic valve annulus, and can be implanted and released through the femoral artery. It includes a main body support 1, a fixing part 2, a bridging support 3, a skirt 4, an artificial leaflet 5 and a connecting part 6.

[0033] The main body stent 1 of the valve stent is a cylindrical or nearly cylindrical structure, which is composed of a plurality of rhombic grids. The stent is a short stent, the length of which is 10-30mm shorter than that of the prior self-expandable ones in the prior art, so as to reduce the risk of main coronary artery obstruction and preserve the channel for subsequent coronary intervention.

[0034] One end of the fixing member 2 is a blunt free end, and the other end is connected to the aorta side of the main body stent 1; and the blunt free end is a str...

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PUM

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Abstract

The invention relates to a valve stent applied to aortic valve regurgitation, and belongs to the technical field of medical instruments. The valve stent comprises a main body stent, a fixing piece, a bridging stent, a skirt edge, an artificial valve leaflet and a connecting piece; the bridging bracket is connected to the lower end of the main body stent; the connecting piece is connected to the lower end of the bridging stent in a connected manner; the fixing piece is arranged at the end, close to the aorta, of the main body stent; and the artificial valve leaflet and the skirt edge are arranged on the main body stent. The invention overcomes the defects in the prior art, can be firmly fixed to the aortic valve annulus and can be implanted and released through the femoral artery for treating aortic valve regurgitation.

Description

technical field [0001] The invention relates to a valve support applied to aortic valve regurgitation, which belongs to the technical field of medical devices. Background technique [0002] Transcatheter aortic valve replacement (TAVR) is to compress the stent with biological valve into the catheter in vitro, and then send the valve stent to the aortic root along the peripheral blood vessel or apex for release, and fix it on the native aortic annulus. to replace the native aortic valve. At present, transcatheter aortic valve replacement has become the first-line treatment for the elderly, especially for patients with aortic stenosis who are at high surgical risk. For patients with aortic regurgitation, TAVR is not currently recommended internationally as a treatment. Unlike patients with aortic stenosis, patients with aortic regurgitation have no hard calcified aortic valves in their native aortic valves. Therefore, the valve stents commonly used in clinical practice are e...

Claims

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Application Information

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IPC IPC(8): A61F2/24
CPCA61F2/2412A61F2/2418
Inventor 潘文志周达新葛均波
Owner SHANGHAI HANYU MEDICAL TECH CO LTD
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