Patent ID: 9730794
Date: 2017-08-15
CPC Classifications: A61F

Claim:
1. A prosthetic mitral valve comprising: an inflow end, an outflow end, and a central flow axis extending from the inflow end to the outflow end; a cloth-covered ring disposed at the inflow end of the prosthetic mitral valve, the ring configured for positioning on an atrial side of a native mitral valve annulus and for holding the prosthetic mitral valve in place; a compressible and expandable stent extending from the ring towards the outflow end of the prosthetic mitral valve, the outflow end of the prosthetic mitral valve configured to project into a left ventricle, the stent comprising biocompatible metal, the stent, when expanded, being circumferentially D-shaped with a major axis longer than a minor axis thereof, with a ratio of the minor axis to the major axis from about 3:4 to about 4:5, the stent dimensioned for placement within the native mitral valve annulus, the stent having an approximately conical shape with a smaller diameter towards the outflow end of the prosthetic mitral valve, the stent including three cusps and three commissure posts, tips of the commissure posts at a smaller diameter end of the stent, inflow portions of the cusps extending past an outflow rim of the cloth-covered ring towards the inflow end of the prosthetic mitral valve; three flexible, tissue leaflets in a tri-foil configuration, the leaflets projecting towards the flow axis, the leaflets secured to the stent along the cusps and commissures, and a cloth cover disposed over the stent.