Ascending aorta and aortic valve integrated intravascular stent

Abstract

The invention relates to the technical field of medical apparatuses, and in particular to an ascending aorta and aortic valve integrated intravascular stent. An aortic valve stent (1) is arranged at the proximal end of the intravascular stent; a connecting piece (2) is arranged in the middle of the intravascular stent; and an aortic stent (3) is arranged at the distal end of the intravascular stent, wherein the proximal end of a main body of the aortic valve stent is represented in a skirt-shaped form, an artificial coating covers the distal end of the main body, and an artificial aortic valve is hung at the inner side of the main body; the connecting piece (2) is of a flexible structure which is composed of at least two mutually independent bundles of silk threads; each bundle includes one or two silk threads which are mutually independent or are crossed; two ends of the silk threads are connected to the aortic valve stent (1) and the aortic stent (3); and each bundle of silk threads are not mutually crossed or connected and are not covered by the artificial coating.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an ascending aortic aortic valve integrated vascular stent. Background technique [0002] Aortic valve disease refers to primary or secondary insufficiency or stenosis of the aortic valve, often accompanied by dilation of the ascending aorta and other lesions. The existing main treatment method is surgical operation, which requires extracorporeal circulation during the operation. The operation trauma is large, and the perioperative mortality rate is high. Most elderly patients cannot tolerate it. Although the transcatheter aortic valve implantation technology that has emerged in recent years can treat some patients with aortic stenosis, it cannot treat patients with ascending aortic disease and aortic insufficiency. [0003] Dilated disease of the ascending aorta includes ascending aortic dissection (Stanford type A aortic dissection) and ascending aortic aneurysm. For ...

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Problems solved by technology

[0008] Therefore, the existing endovascular stents for ascending aortic dilation disease and aortic valve disease are limited by insufficient anchoring area, inability to synchronize multiple lesions, involving coronary arteries, and large activity of ascending aorta. Aortic stenosis or partially old, dissecting aneurysm with high tear opening of aortic dilatation, limited use

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