A catheter assembly may comprise a guide catheter, a balloon catheter with a steering balloon and a stabilizing balloon and a guide wire. The stabilizing balloon secures the balloon catheter to the guide catheter while the steering balloon secures the catheter assembly to the vessel wall. In another...http://www.google.com.au/patents/US7740609?utm_source=gb-gplus-sharePatent US7740609 - Balloon catheter
