Apparatus for enhancing pushability and minimizing kinking of a balloon catheter is provided, wherein a catheter comprises inner and outer tubes, and a balloon that is proximally affixed to the outer tube and distally affixed to the inner tube. The outer tube extends distal to the proximal affixation...http://www.google.fr/patents/US6960188?utm_source=gb-gplus-shareBrevet US6960188 - Catheter having enhanced distal pushability
