The implant delivery system (10) comprises a catheter (60) having a delivery lumen (66), a pusher member (30) slidably disposed within the delivery lumen of the catheter, and a pusher member A retention member configured to retain the implant in a collapsed configuration on the pusher member for delivering the expandable implant via the catheter delivery lumen And an expandable actuator (40) coupled to the distal end and operatively associated with the retaining member, wherein expansion of the actuator pulls the retaining member away from the implant (20) on the indentation member to form an implant To expand from the folded configuration.(FIG.