Patent ID: 8574260

Claim:
A vasooclusive embolic device deployment system for use in placing an embolic device at a predetermined site within a vessel comprising: an elongated flexible catheter having proximal and distal ends and a lumen extending therethrough; an elongated pusher member having proximal and distal ends and being slidably disposed within the lumen of the catheter; an embolic device having proximal and distal ends, and a headpiece having an outer surface disposed within the proximal end of the embolic device, and being disposed at the distal end of the pusher member; and, an elongated, retractable fiber extending from a position proximal of the proximal end of the pusher member, through the lumen of the catheter and around the outer surface of the headpiece of the embolic device such that the embolic device is held at the distal end of the pusher member until a proximal force is applied to the fiber and in so doing the retractable fiber stretches to disengage from around the headpiece of the embolic device to thereby release the embolic device at the predetermined site within the vessel; wherein the retractable fiber extends around the outer surface of the headpiece of the embolic device in a coiled configuration, an inner surface of the coiled configuration extends around the outer surface of the headpiece.