BICUSPID HEART VALVE PROSTHESIS Russian patent published in 1999 - IPC

FIELD: medical engineering. SUBSTANCE: device has circular valve ring which internal surface makes boundary for flow canal to provide blood circulation, and two semilunar valve cusps mounted to be independently rotatable about single common axle. Both cusps are capable to assume opened position in perpendicular to valve ring plane and closed position in the valve ring plane providing flow canal shut-off. The axle of the cusps is positioned eccentrically in parallel to valve ring diameter and at some distance from it. One cusp surface is greater than the other one. EFFECT: provided operation mode close to physiological conditions. 21 cl, 9 dwg