Catheter with optical fiber.

摘要

There is provided a cancer therapeutic instrument for use in treatment of cancer and tumor. According to such an instrument, the affected part is irradiated effectively with activation light thereby obtaining an effect of the light treatment. The cancer therapeutic instrument is equipped with a catheter type of insertion member having a tube (11a) of which a tip (11c) is closed, a tip end of the tube being adapted to be inserted into a subject to be treated, and an optical (12a) fiber of which a tip end is adapted to be disposed slidably inside said tube. <IMAGE>