Patent ID: 6605112
Filing Date: 2003-08-12
Classification: A61F,Y10S

Abstract:
An implantable prosthesis device for regulating the flow of blood in a blood vessel of a patient, the device comprising:a support frame made of a memory material configured to be positioned against an inner surface of the blood vessel, the support frame having a lumen extending between a proximal end and a distal end of the support frame, wherein the support frame is compressible to a first configuration adapted for delivery of the device into the blood vessel and is expandable to a second configuration adapted for implantation of said device within the blood vessel; and at least one valve element attached to the support frame, the valve element comprising at least one wall within the lumen of the support frame that is displaceable by the flow of blood through the blood vessel such that when blood flows through the blood vessel in a forward direction, the at least one wall moves toward the inner surface of the blood vessel into a collapsed, generally flattened configuration, the at least one wall being moveable away from the inner surface of the blood vessel into an open configuration when blood flows through the blood vessel in a reverse direction; wherein the wall in its open configuration forms at least in part a flow restriction pocket defined between the wall and the inner surface of the blood vessel.