A balloon catheter is disclosed which includes a contrast displacement rod at least partially and slidably disposed in an elongate tubular member with a balloon connected to the distal end of the tubular member. The rod may include a stop mechanism to inhibit removal of the rod from the tubular...http://www.google.fr/patents/US5785685?utm_source=gb-gplus-shareBrevet US5785685 - Balloon catheter with improved pressure source
