Flexible treatment catheters are configured to be inserted into a body lumen or cavity to deliver heated fluid through at least one fluid lumen therein to thermally treat or ablate a targeted site in a biological subject. The flexible treatment catheters can include improved thermally insulated regions...http://www.google.com/patents/US20020082556?utm_source=gb-gplus-sharePatent US20020082556 - Treatment catheters with thermally insulated regions
