Herzklappen mit auf Kugeln drehenden Blattelementen.
摘要
<p>Heart valve consisting of a ring (1), of one or more leaflets (16), the axis of pivoting of the leaflets (16) being formed by two balls (14) extending partially within an annular cavity (13) and a conical leaflet cavity (15). This arrangement improves the service life of the valve by reducing the wear, the stresses and the friction, and it facilitates the assembly thereof if the ring consists of two concentric hoops (2 and 3) and if the annular cavity (13) extends on each side of the inner hoop (2). …<??>The invention applies principally to artificial valves arranged in the heart in place of defective natural valves. …<IMAGE>… </p>
