US Patent 7998155 Method and apparatus for anastomosis including annular joining member

Apparatus and methods for performing a surgical anastomotic procedure are disclosed herein. Apparatus according to the present disclosure include a tubular body having a distal end and a proximal end and defining a longitudinal axis, the tubular body including an expandable anchor provided near the distal end thereof and an expandable cuff provided near the distal end of the tubular body and proximal of the expandable anchor, and a joining member (200) configured and adapted to be received about the expandable cuff of the tubular body, the joining member having an annular body portion (202) including a pair of opposed terminal edges (204, 206). The joining member has a retracted position in which the pair of opposed terminal edges overlap by a predetermined amount and an expanded position in which the pair of opposed terminal edges overlap by an amount less than the predetermined amount.