Abnormal blood vessel channel plugging device

Abstract

The invention relates to an abnormal blood vessel channel plugging device. The abnormal blood vessel channel plugging device comprises a blood vessel stent, wherein a cylindrical elastic thin film islined in the blood vessel stent, the two ends of the elastic thin film are concentrically fixed to the two ends of the blood vessel stent in a surrounding mode respectively, and a restraining device used for contracting the cylinder diameter of the thin film to be closed is arranged on the elastic thin film. The abnormal blood vessel channel plugging device further comprises a guide wire used forguiding the blood vessel stent, wherein a contracting balloon used for expanding the blood vessel stent is arranged on the guide wire, and the distal end of the blood vessel stent is in a necking-downform. The abnormal blood vessel channel plugging device has the advantages that the abnormal blood vessel plugging efficiency and effect can be improved, and the operation cost and operation time canbe shortened.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to an abnormal blood vessel channel blocking device. Background technique [0002] Abnormal channels refer to the internal cavity of the human body, including coronary artery fistula, pulmonary arteriovenous fistula, and other channels left by traumatic or surgical complications. Taking coronary artery fistula as an example, coronary artery fistula (Coronary artery fistula, CAF) refers to the existence of an abnormal connection between the coronary artery, the heart chamber and the great vessels, and the fistula can enter any part of the heart and great vessels, followed by the right ventricle. (40%), right atrium (25%), pulmonary artery (17%), coronary sinus (7%), left atrium, left ventricle. Most patients are asymptomatic, often discovered incidentally during physical examination, and confirmed by coronary angiography. According to the etiology, abnormal channels can be divided in...

AI Technical Summary

Problems solved by technology

Coils are the most widely used in CAF interventional therapy, but often need multiple coils to block, the operation time is long, and the clinical cost is as high as more than 100,000 yuan

[0005] In summary, interventional occlusion devices in the prior art are prone to postoperative residual shunt, the coils of the occlusion device cannot be effectively coiled, the occluder is displaced, the clinical cost is high, and the operation time is long.

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