Patent ID: 7985238

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 deployment catheter having a lumen extending therethrough and having proximal and distal ends; an elongated tubular pusher member having a lumen extending therethrough and having proximal and distal ends and being slidably disposed within the lumen of the deployment catheter; an embolic device having a proximal end, a retaining ring being disposed at the proximal end thereof; an engagement member extending from the distal end of the pusher member and having an aperture extending through the distal end thereof, said engagement member extending through said retaining ring; a kicker member which takes the form of a generally U-shaped wire spring having first and second legs extending from the distal end of the pusher member and having the end of said first leg attached to a side wall of the pusher member and the end of said second leg attached to an opposite side wall of the pusher member, said first leg of said kicker member contacting said retaining ring of said embolic device and being normally biased to deflect in a direction which causes said retaining ring to be lifted off of said engagement member; and, an elongated detachment member extending from a position proximal of the proximal end of the pusher member, through the lumen of the pusher member and through the aperture of the engagement member such that when the detachment member is pulled proximally the distal end of the detachment member is withdrawn from the aperture of the engagement member and said kicker member lifts said retaining ring of said embolic device off of said engagement member to thereby release the embolic device from said pusher member.