Patent ID: 7854759

Claim:
An implantable prosthetic device for modifying fluid flow through a body lumen, the device comprising: a flexible member configured for permitting fluid flow through the body in a first direction at a first rate and for restricting fluid flow through the body lumen in a second direction at a second rate, the flexible member comprising; a passageway defined by a sheath of biocompatible material, the passageway with a first end portion and a second end portion; the first end portion sized and shaped to at least partially restrict fluid flow in the first direction and capable of at least partially collapsing in response to fluid flow in the second direction; and the second end portion adapted to seal with a wall of the body lumen; wherein a diameter of a first opening defined in the first end portion is smaller than a diameter of a second opening defined in the second end portion; wherein the device comprises a frame operably connected to the flexible member; and wherein the frame comprises at least one strut operably connected to the first end portion and configured for extending inward into the body lumen.