Patent ID: 6354989
Filing Date: 2002-03-12
Classification: A61N

Abstract:
A radiation source delivery wire comprising:a flexible operating wire member having a distal end portion constituting a narrowing portion which gradually narrows toward a distal end, said operating wire member having a stiffness capable of transmitting an operation at its proximal end to its distal end; a covering layer provided on an external surface of said operating wire member, said covering layer providing said operating member with resilience and pliability; an irradiation member including a radiation source for applying radiation to a target portion in a cavity of a living body, said irradiation member being so constructed as to be flexibly bendable; and a tube made of a flexible resin material directly fitted to said irradiation member to sealingly encapsulate said irradiation member, a proximal end of said tube being joined to said covering layer to constitute a smooth surface of the radiation source delivery wire.