Patent ID: 8535345

Claim:
A vasoocclusive device for use in interventional therapy and vascular surgery adapted to be inserted into a portion of a vasculature, comprising: a pusher member; a vasoocclusive coil having a proximal end and a distal end, said vasoocclusive coil being helically wound forming a lumen between said proximal and distal ends, said vasoocclusive coil being configured to be releasably attached to said pusher member for deployment in the portion of the vasculature; an inner reinforcement coil having a center, a proximal end and a distal end, said vasoocclusive coil being disposed about said inner reinforcement coil, said inner reinforcement coil being securely positioned within said vasoocclusive coil without being fixedly attached to said vasoocclusive coil; an inner strand of bioactive material disposed in the center of said inner reinforcement coil; an inner reinforcement stretch resistant member extending non-helically through the lumen of said vasoocclusive coil and externally of said inner reinforcement coil, said vasoocclusive coil and said inner reinforcement coil together forming a biplex coil, and said inner reinforcement stretch resistant member consisting of a non-metallic fiber material having an end fixedly attached at or near the distal end of said vasoocclusive coil and said inner reinforcement coil of said biplex coil, said inner reinforcement stretch resistant member being configured to allow said vasoocclusive coil to be pushed after said vasoocclusive coil is partially deployed; and said inner reinforcement coil forming a helical winding wound in the same direction as said vasoocclusive coil winding.