The invention is a dilation catheter which comprises an elongated catheter shaft, a guide wire tube, and an angioplasty balloon. The distal end of the balloon is attached to the distal portion of the guide wire tube, and the proximal portion of the balloon is attached to the distal portion of the catheter...http://www.google.com/patents/US7001358?utm_source=gb-gplus-sharePatent US7001358 - Reinforced monorail balloon catheter