Probe-like catheter has a small diameter and can be steered to and passed through narrow stenoses. The probe has a balloon at its distal end which is collapsible to a low profile to enable it to be passed through the stenosis. The probe may include a distal tip which can hold a preset curve. The probe...http://www.google.es/patents/US4917088?utm_source=gb-gplus-sharePatente US4917088 - Balloon dilation probe
