A heated balloon catheter for treatment of constricted zones of body fluid passages by applying heat and pressure to the constricted zone. The heat is generated by transmitting, to an antenna within a balloon carried by the catheter, radio frequency energy of about 13.56 MHz. Measuring the temperature...http://www.google.com.au/patents/US5344398?utm_source=gb-gplus-sharePatent US5344398 - Heated balloon catheter
