This invention is directed at an intravascular balloon catheter. The most important aspect of this invention is the catheter tip which is small, soft and truncated. The tip member has a proximal end and a distal end. The proximal end is secured to the distal end of the inner tubular member of the catheter...http://www.google.com.au/patents/US6206852?utm_source=gb-gplus-sharePatent US6206852 - Balloon catheter having a small profile catheter
