A robotic medical system and method of performing a medical procedure are provided. The robotic medical system comprises a user interface configured for receiving commands, an electromechanical driver configured for being coupled to outer and inner catheters having proximal and distal balloons, a balloon...http://www.google.fr/patents/US7766894?utm_source=gb-gplus-shareBrevet US7766894 - Coaxial catheter system