Patent ID: 6719787
Filing Date: 2004-04-13
Classification: A61F,A61L,G06Q,Y10S

Abstract:
A replacement semilunar heart valve for placement in a ventricular outflow artery of a patient, comprising:a thin and flexible wall portion with diametrically opposing sides; 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 semilunar heart valve; three securement locations adjacent the outlet end and spaced from each other, the securement locations adapted to be attached to a wall of the artery; and three unconstrained regions between the securement locations, each of the unconstrained regions adapted to flex inwardly into and out of engagement with others of the unconstrained regions in response to force by blood pressure, said unconstrained regions adapted to cause the valve to be normally open and to close as the heart cycle changes from systole to diastole, wherein the replacement semilunar heart valve is derived from one or more of the following materials: synthetic material, pericardial sac, fascia lata, intestinal tissue segment, or animal tissue culture.