Patent ID: 7833262

Claim:
A vascular device comprising a plurality of vessel engaging members and a valve connected to the vascular device, the device movable from a collapsed insertion position having a first diameter to a second expanded position having a second diameter larger than the first diameter, the plurality of vessel engaging members extending outwardly from the device for securely engaging the internal wall of a vessel upon expansion of the device to the second expanded position, the vessel engaging members pulling the internal wall of the vessel radially inwardly upon movement of the device from the second expanded position toward a first expanded position having a third diameter, the third diameter being greater than the first diameter and less than the second diameter, and in the first expanded position the valve movable between an open position to allow blood flow therethrough to a closed position to prevent blood flow wherein the device is composed of shape memory material and the first expanded position substantially corresponds to the memorized position of the device.