Patent ID: 8177746
Filing Date: 2012-05-15
Classification: A61B

Abstract:
1. An apparatus for release and deployment of a stretch resistant therapeutic device within a patient's vasculature, comprising: an elongated flexible tubular catheter having a frustoconically shaped distal tip; 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 coaxially disposed within said elongated flexible tubular catheter for movement within said elongated flexible tubular catheter, said elongated pusher member having a distal end adjacent to said proximal end of said vasoocclusive coil; and a stretch resistant member extending through said lumen of said vasoocclusive coil, said stretch resistant member being fixedly attached at one end of said stretch resistant member to said distal end of said vasoocclusive coil and configured to be mechanically releasably mounted to the distal end of said distal tip of said elongated flexible tubular catheter by a tubular distal tip mounted to an outer surface of said frustoconically shaped distal tip of said elongated flexible tubular catheter, said tubular distal tip having a frustoconical shape and formed of a yieldable material configured to releasably hold the proximal end of the vasoocclusive coil to allow for placement of the vasoocclusive coil within the patient's vasculature, and wherein said elongated pusher member is configured to be moved to contact and dislodge said proximal end of the vasoocclusive coil from said tubular distal tip.