Patent ID: 9474602
Filing Date: 2016-10-25
CPC Classification: A61B,A61F

Claim Text:
1. An artificial valve leaflet for implantation into the heart and functioning as an artificial valve, comprising an anterior cusp forming member and a posterior cusp forming member, wherein the anterior cusp forming member comprises an upper edge which is configured to be sewn to a valve annulus of the heart, and a lower edge which is connected to the upper edge at a first boundary portion and which forms a bifurcated portion which is open downward, wherein the upper edge of the anterior cusp forming member comprises a pair of right and left inclined edges inclined inward and upward from right and left ends, and a curved edge which is interposed between the pair of right and left inclined edges and which has a convex shape, wherein the posterior cusp forming member comprises an upper edge which is configured to be sewn to the valve annulus of the heart and which defines a straight line, and a lower edge which is connected to the upper edge at a second boundary portion and which forms a bifurcated portion which is open downward, wherein a height of the bifurcated portion of the anterior cusp forming member is greater than a height as measured from the first boundary portion to the curved edge, and wherein the lower edge of the anterior cusp forming member comprises: wherein the center edge defines a parabola having an inflection point, and wherein a height as measured from the end of the side edge to the inflection point of the center edge defines the height of the bifurcated portion.