CATHETER DELIVERABLE COILED WIRE THROMBOGENIC APPARATUS AND METHOD

摘要

A catheter deliverable thrombogenic device includes acatheter for threading into a body vasculature passagewayto a target location, and a resilient wire element coiledand shaped to occupy a certain volume when unconstrained,and to straighten when inserted lengthwise into andconstrained by tree catheter, for ultimate dischargetherefrom to expand and occupy the target location. Thewire element includes a first length of wire, and a secondlength of wire coiled about the first wire to form acomposite pair. The composite pair itself is coiled andshaped to occupy the certain volume when unconstrained, andto straighten when inserted lengthwise into and constrainedby the catheter.