Surgical micro-stapling instrument

摘要

A surgical stapling instrument for performing a vascular anastomosis procedure comprises an elongated body 10 and a needle 12 having a hook 12b for penetrating and everting the edges 56, 58 of tissue to be joined. The needle 12 is slidable in the body 10 between an extended position as shown and a retracted position wherein the hook is engaged with the end 10a of the body. A stapling mechanism includes a slidable pusher 40 for driving a staple 36 longitudinally of the body 10 against the inside of the hook 12b for deformation of the staple into penetrating engagement with the everted tissue edges 56, 58.