公开(公告)号：US06068657A

公开(公告)日：2000-05-30

申请号：US35981

申请日：1998-03-06

申请人： Didier Lapeyre ,  Philippe Perrier

发明人： Didier Lapeyre ,  Philippe Perrier

IPC分类号： A61F2/24

CPC分类号： A61F2/2403

摘要： The invention relates to a mechanical valve prosthesis that includes a base having an external portion forming a suture ring, and an internal portion forming a rim, in which a blood flow can move in a main flow direction (F), as well as at least two closing leaflets (10) which can move, under the action of the blood flow, between a closed position and an open position, and vice versa. The opening occurs in the physiological direction, that is from the axis of the rim (3) of the center of the prosthesis and thus toward the rim. A region (40) of each one of the leaflets (10) borders, in the open position, a natural wall and defines with it the peripheral duct regions (19). The region (40) of each leaflet (10) presents a zone (22) in which, in the closed position, it turns its concavity toward the rim (3). In this manner, when the leaflet (10) is in the open position, the peripheral duct regions (19) present a form which produces a beginning of closing of the valve (10) during the deceleration of the blood flow.

摘要翻译： 本发明涉及一种机械瓣膜假体，其包括具有形成缝线环的外部部分的基部和形成边缘的内部部分，其中血流可以在主流动方向（F）上移动，并且至少 两个闭合传单（10），其能够在血液流动的作用下在关闭位置和打开位置之间移动，反之亦然。 开口发生在生理方向，即从假体中心的边缘（3）的轴线并因此朝向边缘。 每个传单（10）中的一个区域（40）在打开位置处与自然壁相接合，并且与其一起界定周边导管区域（19）。 每个小叶（10）的区域（40）呈现一个区域（22），在该区域（22）中，在闭合位置，其将凹部朝向轮缘（3）转动。 以这种方式，当小叶（10）处于打开位置时，周边管道区域（19）呈现在血流减速期间产生阀门（10）的开始的形式。