STRUCTURE DE RACCORDEMENT D'ENDOPROTHÈSE ET DE FEUILLET DE VALVE, ET PROCÉDURES DE « VALVE DANS VALVE » INTERVENTIONNELLE ET DE VALVE AORTIQUE INTERVENTIONNELLE APPLIQUANT UNE STRUCTURE DE RACCORDEMENT
BEIJING BALANCE MEDICAL TECHNOLOGY CO., LTD.;北京佰仁医疗科技股份有限公司
发明人:
JIN, Lei,金磊,MU, Hong,慕宏,FAN, Zhihao,范志豪
申请号：
CNCN2020/083088
公开号：
WO2020/207332A1
申请日:
2020.04.03
申请国别(地区):
CN
年份:
2020
代理人:
摘要：
A connecting structure of a stent (10) and valve leaflets (20), and an interventional valve-in-valve and an interventional aortic valve applying the connecting structure. The stent (10) is a metal mesh tube, the valve leaflets (20) are three fan-shaped leaflets (20) disposed inside of the stent； the three fan-shaped leaflets (20) each have a free edge (21), an arc-shaped bottom edge ( 22) and a leaflet boundary connecting portion (23) extending on both sides. Three connecting posts (11) are evenly distributed on the metal mesh tube, and the boundary connecting portion (23) of the fan-shaped leaflet (20) comprises a radially folding connecting portion (231) and an axially folding connecting portion (232). The radially folding connecting portion (231) of each fan-shaped leaflet (20) passes through a connecting post (11) from inside to outside and then folds, and the axially folding connecting portion (232) folds inside of the connecting post (11) and is then connected by a suture and fixed to the connecting post (11). The connecting structure of the stent (10) and the valve leaflet (20) can avoid the concentration of stress when the valve leaflets (20) open and close as well as the friction produced between the valve leaflets (20) and the stent (10), thereby achieving a hemodynamic effect similar to that of a biological valve, as well as similar durability.L'invention concerne une structure de raccordement d'une endoprothèse (10) et d'un feuillet de valve (20), ainsi que des procédures de « valve dans valve » interventionnelle et de valve aortique interventionnelle appliquant la structure de raccordement. L'endoprothèse (10) est un tube à mailles métalliques, les feuillets de valve (20) sont trois feuillets en forme de ventilateur (20) disposés à l'intérieur de l'endoprothèse ； les trois feuillets en forme d'éventail (20) ayant chacun un bord libre (21), un bord inférieur en forme d'arc (22) et une partie de raccordement limite de feuillet (23) s'étendant sur les deux
