Aortic dissection crevasse plugging device

Abstract

The invention provides an aortic dissection crevasse plugging device, and relates to the field of medical apparatus and instruments. The aortic dissection crevasse plugging device comprises a tubular grid stent and a plugging filling portion capable of preventing blood in an aortic true lumen from flowing into a false lumen from an intima crevasse; the plugging filling portion is connected to one side of the tubular grid stent; in the state that the aortic dissection crevasse plugging device is implanted into a human body and released, the tubular grid stent is supported on the inner wall of the aortic true lumen, a part of the plugging filling portion penetrates through the aortic intima crevasse to stretch into the false lumen and fill the false lumen, the plugging filling portion in the false lumen is supported on the inner wall of the false lumen, and the portion, connected with the plugging filling portion in the false lumen, of the tubular grid stent plugs the edge of the aortic intima crevasse. The aortic dissection crevasse plugging device at least solves the problems that in the prior art, when a covered stent, a grid stent, a plugging device and the like are used for treating an aortic dissection with an insufficient healthy anchoring area, a fragile intima needs to be expanded or a new crevasse is likely to be formed with the fragile intima as the anchoring area, and blood flow in the false lumen is difficult to suberize.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to an aortic dissection breach sealing device. Background technique [0002] The aorta is composed of three layers, which are called intima, media and adventitia respectively; aortic dissection (Aortic Dissection, AD) refers to blood entering the aortic media from a breach (tear) in the aortic wall Driven by the pulse pressure, the blood in the aortic lumen separates the media and expands along the long axis of the aorta, separating the aortic wall into a true and false lumen. The true lumen refers to the original normal blood flow vessel. Lumen, while false lumen refers to the newly torn pathological lumen. [0003] Aortic dissection is a cardiovascular disease that seriously threatens human health, with rapid onset, rapid progression and high mortality. The lesion location of aortic dissection is the core factor in determining the surgical approach. Aortic dissectio...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a kind of aortic dissection breach sealing device, to alleviate existing in the prior art when using covered stent, grid support and occluder etc. to treat the aortic dissection with insufficient healthy anchoring area: Need to dilate the fragile intima or use the fragile intima as the anchoring area to easily form a new breach, and the problem that the blood flow in the false lumen is difficult to embolize

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