Patent ID: 6719788
Filing Date: 2004-04-13
Classification: A61F,A61L,G06Q,Y10S

Abstract:
A replacement atrioventricular heart valve, comprising:a thin and flexible wall portion comprising no more than two leaflets; an inlet end and an outlet end, the inlet end sized and adapted to be circumferentially secured substantially at a valve annulus formed by removing a native atrioventricular heart valve, the outlet end having a diameter no greater than that of the inlet end when the valve is open; two securement locations adjacent the outlet end and spaced from each other, each of the securement locations adapted to be attached to a respective papillary muscle; and two unconstrained regions between the securement locations, each of the unconstrained regions adapted to flex inwardly into and out of engagement with the other of the unconstrained regions in response to force by blood pressure, said unconstrained regions engaging along a line of commissure when the valve is closed, said line of commissure being generally parallel to a line extending between said papillary muscles, wherein the replacement atrioventricular valve is derived from one or more of the following materials: synthetic material, pericardial sac, fascia lata, intestinal tissue segment, or animal tissue culture.