A micro-heat-pipe catheter provides a hyperthermia or hypothermia source for the treatment of cancerous tumors or other diseased tissue. The heat-pipe is about the size of a hypodermic needle and is thermally insulated along a substantial portion of its length. The heat-pipe includes a channel, partially...http://www.google.fr/patents/US5190539?utm_source=gb-gplus-shareBrevet US5190539 - Micro-heat-pipe catheter