Patent ID: 6896690

Claim:
A device for performing intravascular procedures wherein at least a portion of the device is configured for placement in a flowpath of a blood vessel, and said at least a portion of said device has an upstream side and a downstream side corresponding to antegrade blood flow in the flowpath of the blood vessel, said device comprising: a) a valve means configured to allow greater antegrade flow than retrograde flow through the vessel, and said valve means positioned at the portion of the device configured for placement in the flowpath of the blood vessel; and b) a filter operative to restrict the passage of emboli while allowing blood flow through the vessel, and said filter configured on the upstream side of said at least a portion of said device and said valve means configured on the downstream side of said device so as to position said filter upstream of said valve means and prevent prolapse of said valve means with said filter during blood flow in an upstream direction.