Anchor device for vascular anastomosis

A medical device assembly for use in an anastomosis procedure in a body lumen of a patient, the assembly comprising:

• an anchor device including,
• a generally tubular graft having a proximal portion and an opposite distal portion;
• and
• a self-expanding flange disposed adjacent the distal portion of the tubular graft, the flange including an opening in communication with the graft to form a fluid passageway through the flange, the flange further including a wire frame having a plurality of resilient arms radiating outwardly from a central portion of the wire frame, and a membrane overlaying the wire frame;
• and
• a delivery sheath disposed around at least a portion of the anchor device such that the anchor device is longitudinally displaceable within the delivery sheath, wherein upon displacement of the self-expanding flange into a lumen of the delivery sheath the plurality of resilient arms collapse toward each other, and wherein upon displacement of the self-expanding flange out of the lumen of the delivery sheath and into the body lumen of the patient, the plurality of resilient arms are displaced away from each other,
• wherein a segment of the distal portion of the tubular graft extends through the flange and outwardly therefrom;
• and
• wherein the self-expanding flange is configured to expand within the body lumen of the patient and is anchored against one or more lumen walls.