Patent ID: 7780687
Filing Date: 2010-08-24
Classification: A61B,A61F

Abstract:
1. A device for joining a first body vessel to a second body vessel, comprising: an inner member having a distal end portion and a fluid transmission region near the distal end portion through which fluid may pass from an interior of the inner member to an exterior of the inner member, the inner member defining a longitudinal axis; an outer member defining a lumen dimensioned to receive the inner member therein; a radially expandable anchor disposed at the distal end of the inner member adjacent the fluid transmission region, the expandable anchor having an initial condition wherein the expandable anchor is disposed between the outer member and the inner member and an expanded condition, the expandable anchor moving to the expanded condition upon absorbing fluid; and a sheath disposed about the expandable anchor for defining the shape of the expandable anchor when in the expanded condition such that a distal end portion of the expandable anchor is radially larger than a proximal end portion of the expandable anchor in the expanded condition.