Patent ID: 8506620

Claim:
A prosthetic valve, comprising: a flexible tube comprising an inflow end, an outflow end, multiple lobes formed at the inflow end by attachment of the flexible tube to itself, and a central aperture at the outflow end of the tube, wherein each lobe includes a radial tip, the radial tip extending axially to the outflow end of the flexible tube; and a stent having multiple longitudinally extending members, each of which is located at least partially within one of the lobes of the tube and extending at least to the outflow end of the tube, wherein portions of the tube between each two adjacent longitudinally extending members of the stent are moveable toward and away from the central aperture to provide a plurality of valve leaflets, wherein the valve leaflets are biased toward the central aperture when the valve is in an open position during which fluid can flow from the inflow end to the outflow end of the tube, wherein the central aperture is open to the inside of the tube at the outflow end of the tube both when the valve is in its open position and when the valve is in a closed position.