ARTIFICIAL CARDIAC VALVE Russian patent published in 2000 - IPC

FIELD: medicine, particularly, cardiosurgical operation for replacement of cardiac valves. SUBSTANCE: artificial cardiac valve has ring-shaped body accommodating shut-off member in the form of disc installed for opening and closing of body flow area by its turning, and upper and lower stops limiting displacement of disc in valve opening and closing, respectively. In this case, lower stops are made in the form of semiarcs projecting from body internal surface and installed to form gap between their free ends. Lower stops are different in size and their free ends are located at different distances from transverse axis of symmetry of valve flow area. EFFECT: reduced noise level arising in operation of implanted artificial cardiac valve. 3 cl, 3 dwg