Venus Medtech (hangzhou) Inc.

Venus Medtech, Inc.

Jesse Jun Qi

Min Frank Zeng

Dajun Kuang

Jincheng Yu

Lo Pham

Lai Nguyen

A stent device with skirt folds and a processing method thereof, a skirt folding method, and a heart valve. The stent device comprises a stent () and a flexible skirt (), the skirt () having an expanded state, in which the skirt is axially extended and surrounds the stent () before release thereof, and a folded state, in which the skirt is driven by the deformation caused when the stent () is released, collapses and folds axially along the released stent () so as to form an annular peripheral leakage-blocking portion. The peripheral leakage prevention technology enables an interventional stent to fit to the inner wall of a vessel more snugly, such that the stent does not easily move and is more stable, thereby being suitable for more people, reducing additional risks of surgery and preventing complications such as peripheral leakage and thrombus. The present disclosure can provide better blood dynamics, increase the crawling capability of endothelial cells of a host, reduce the probability of occurrence of endocarditis, and restore a normal blood supply functionality of vessels.

Stent device with skirt folds and processing method thereof, skirt folding method, and heart valve

Disclosed in the present invention are a stent apparatus having a self-pleated skirt, a processing method therefor, a skirt pleating method, and a cardiac valve. The stent apparatus comprises a stent, and is further provided with a flexible skirt. The skirt comprises: an unfolded state, where the skirt extends axially and surrounds the periphery of the stent before release; and a stacked state, where the skirt is driven by deformation during release of the stent, and gathers and is stacked along an axial direction of the released stent to form an annular perivalvular leakage blocking part. The stent apparatus is further provided with a pull-wire which is merely threaded on the skirt, and the pull-wire may react to the radial deformation during the release of the stent to drive the skirt to enter the stacked state. According to the present invention, based on perivalvular leakage prevention technology, an interventional stent is fitted with the lining of the blood vessels, so that the stent will not easily be migrated and is more stable, the scope of the applicable population is expanded, additional surgical risks are lowered, and perivalvular leakage, thrombi and other complications are prevented. Better hemodynamic performance is provided, the coverage function of endothelial cells of the host is enhanced, the probability of occurrence of endocarditis is lowered, and the normal blood supply function of the heart and blood vessels is recovered.

Stent apparatus having self-pleated skirt, processing method therefor, skirt pleating method, and cardiac valve

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Irvine, CA, United States of America

Jesse Jun Qi