Patent ID: 8894587
Filing Date: 2014-11-25
Classification: A61L,A61M

Abstract:
1. A medical guide wire comprising: a core wire formed of a flexible elongate member, a helical spring body inserted to the core wire to be placed around the core wire, a welding member coated on an outer surface of a distal end portion of the core wire, a head plug provided on the welding member and fixing a distal end of the core wire and a distal end of the helical spring body, a front welding section fixed to the core wire and the helical spring body, the front welding section disposed on the core wire so that a distal end thereof is separated from a proximal end of the head plug, a proximal end of the welding member located between the proximal end of the head plug and the distal end of the front welding section, the core wire made of austenitic stainless steel wire treated with a solid solution procedure, and drawn with a whole cross sectional reduction ratio as 80%-97.6%; and the core wire and the helical spring body being partly welded by the welding member; the welding member made of an eutectic alloy having a melting temperature ranging from 180° C.-495° C.