Patent ID: 6228112
Filing Date: 2001-05-08
Classification: A61F

Abstract:
A cardiac valvular prosthesis comprising:a support ring having an aperture therethrough attachable to human heart tissue;first and second semi-circular blood impervious valve plates sized for mounting within said support ring aperture, each valve plate having a diametral straight edge that is angularly beveled;first and second rigid narrow valve plate support arms, radially and diametrically disposed within said support ring, said first and second support arms having a teardrop-shaped support head at one end, for movably supporting said first and second valve plates respectively, said first and second valve plates having specially shaped slots disposed at the center of gravity of each valve plate sized to receive said support arm support head, each of said valve plate slots having an elongated portion to permit movement of each valve plate perpendicular to the diametral edge and sufficiently narrow in relation to said support head to prevent valve plate movement in the diametral direction; such that said valve plates close said valve and stop blood flow in one direction through said valve based on hemostatic pressure and said valve plates become parallel to allow blood flow through said valve in the opposite direction.