Patent ID: 8361092

Claim:
A vascular anastomosis device comprising: a lower flange having a diversion conduit with an inlet and an outlet; an upper flange coupled to the diversion conduit, the upper flange configured to hinge between a first position separated from the lower flange and a second position closer to the lower flange; a biasing structure mounted to the diversion conduit and coupling the diversion conduit to the upper flange, the biasing structure having a spring being configured to apply a rotational force on the upper flange to bias the upper flange from the first position toward the second position, the rotational force being configured to maintain the flange in the second position; and a retention element coupled to the diversion conduit, the retention element operable to inhibit movement of the upper flange from the first position to the second position without the retention element being in contact with the biasing structure.