Patent ID: 7591833
Filing Date: 2009-09-22
Classification: A61B

Abstract:
1. A vascular occlusion device deployment system, comprising: a deployment unit comprising a flexible pusher adapted for transmitting light energy therethrough, said pusher having a proximal end portion, a distal end portion and a lumen; said deployment unit further comprising an optical fiber within the lumen of the pusher, the optical fiber having a distal end within the pusher lumen; a vascular occlusion device; a securing filament for connecting the vascular occlusion device to the deployment unit at a location distal of the distal end portion of the pusher, said securing filament capable of being severed by heat; a heating element distal of the distal end of the optical fiber and within the lumen of the pusher at the distal end portion of the pusher, said heating element having an external surface, a portion of said securing filament being between the lumen of the pusher and the external surface of said heating element; and the entire length of said securing filament, except for a loop length thereof that extends distally of the deployment unit and that passes through the vascular occlusion device contacts the external surface of said heating element at a contact location when said vascular occlusion device is secured to said deployment unit, said heating element increasing in temperature upon exposure to light energy transferred through said optical fiber at said contact location to provide a severed securing filament, thereby releasing the vascular occlusion device from said severed securing filament.