Patent ID: 7691124
Filing Date: 2010-04-06
Classification: A61B

Abstract:
1. A system for intraluminal delivery of a therapeutic device, comprising: an elongated guide tube for intraluminal deployment; a pusher sized and shaped to be slidably positioned within said guide tube, said pusher having a longitudinal axis, an interior lumen wall and a distal end portion; a therapeutic device with a proximal end portion and a distal end portion, the proximal end portion of the therapeutic device and the distal end portion of the pusher are adapted for engagement at an abutment location therebetween; a headpiece disk at said abutment location, said headpiece disk including a draw-down opening, said draw-down opening having a longitudinal axis being coaxial with said longitudinal axis of the pusher, and the draw-down opening having an outer perimeter that is radially inwardly spaced away from the lumen wall of said pusher; a pullwire having a longitudinal axis generally coaxial with said longitudinal axis of said draw-down opening and positioned through said draw-down opening of the headpiece disk, said pullwire having a proximal end portion and a distal end portion, said pullwire further including at least one tine present at said distal end portion of the pullwire, said tine having a generally straight-line orientation at which the tine engages the outer perimeter of the draw-down opening and an offset orientation at which the tine engages said therapeutic device; and said pullwire and said draw-down opening are sized and shaped relative to each other such that said tine moves from said offset orientation toward said generally straight-line orientation when said pullwire moves through said draw-down opening of the headpiece disk in a proximal direction and said tine slidably engages the outer perimeter of the draw-down opening thereby disengaging said tine from said therapeutic device.