VARIABLE HELICAL MEDICAL DEVICE AND MANUFACTURING METHOD THEREOF

摘要

PURPOSE: A variable helical medical device and a manufacturing method thereof are provided to prevent the restenosis phenomenon of an inner cavity without wounding the human body. CONSTITUTION: A variable helical medical device comprises a shape memory polymer(110); a helical body(100) which has a metal strengthening graphene(120) which is dispersed in the shape memory polymer; and an inductive heater(200) which is spaced apart from the helical body and of which the diameter of the helical body varies by inductively heating the helical body. The metal strengthening graphene includes a graphene(121) and several metal nanoparticles(122) dispersed in the graphene. The metal nanoparticles include one selected among iron, silver, manganese, palladium, and nickel.