EMBOLIC COIL DETACHMENT MECHANISM WITH FLEXIBLE DISTAL MEMBER, RESISTIVE ELECTRICAL HEATING ELEMENT AND SHAPE MEMORY POLYMER ELEMENT

摘要

PURPOSE: An embolic coil detaching device including a flexible distal member, a resistive electrical heating element, and a shape memory polymer element is provided to uniformly apply heat by transmitting a high frequency current through a guide wire. CONSTITUTION: A therapeutic embolic coil includes a helical coil. A flexible shape memory polymer tube (16) has a distal part (18). The distal part releases and deploys the therapeutic embolic coil. An elongated flexible pusher member includes a proximal part (20). The therapeutic embolic coil is introduced through a catheter. [Reference numerals] (46) Power supply device; (48) Control unit