An apparatus for incising a stenosis within a vascular conduit of a patient includes an inflatable balloon attached to an elongated catheter that defines a longitudinal axis. The distal end of the balloon includes a tapered section and at least one incising blade is attached to the tapered section. Each...http://www.google.es/patents/US6951566?utm_source=gb-gplus-sharePatente US6951566 - Reciprocating cutting and dilating balloon
