Patent ID: 7422569
Filing Date: 2008-09-09
Classification: A61B

Abstract:
1. An apparatus for release and deployment of a stretch resistant therapeutic device within a patient's vasculature, comprising: a vasoocclusive coil having a proximal end and a distal end, said vasoocclusive coil defining a lumen between said proximal and distal ends; an elongated pusher member having a distal end adjacent to said proximal end of said vasoocclusive coil; at least one loop of fiber material attached to said elongated pusher member, said at least one loop of fiber material being severable by heating of said at least one loop of fiber material; a loop attached to the proximal end of said coil and detachably mounted to said at least one loop of fiber material attached to the pusher member; an electrical resistance heater wire disposed adjacent to said at least one loop of fiber material, said electrical resistance wire being connected to a control unit for heating and thereby severing said at least one loop of fiber material; and a stretch resistant member extending through said lumen of said vasoocclusive coil, said stretch resistant member having first and second ends, said stretch resistant member being formed of a therapeutic non-metallic fiber material, and said stretch resistant member being doubled and said stretch resistant member being fixedly attached to said vasoocclusive coil only at said distal end of said vasoocclusive coil forming a loop and said loop being detachably mounted to the distal end of the elongated pusher member by said at least one loop of fiber material to allow for placement of the vasoocclusive coil within the patient's vasculature.