Patent ID: 8579935

Claim:
A delivery system configured for deployment of an expandable tissue fastener, comprising: a tissue fastener having a proximal member configured to expand from a delivered state to a deployed state, a distal member configured to expand from a delivered state to a deployed state, and an elongate connecting member connecting the proximal member to the distal member; a flexible tube having a lumen configured to accommodate the tissue fastener in a contracted state; a pusher for guiding the tissue fastener along the lumen of the tube; and a grasper coupled to a distal end of the pusher and configured to grasp the tissue fastener, the grasper having an open configuration and a grasping configuration, wherein the grasper is biased to the open configuration, and wherein when the grasper is in the open configuration, the tissue fastener is disconnected from any structure within the flexible tube; wherein a sharp distal end of the distal member is configured to puncture a tissue wall when the tissue fastener protrudes from the flexible tube.