The present invention relates to over-the-wire PTCA balloon catheters (5), and more particularly, to a rapid exchange catheter with the guidewire lumen (50) at the distal tip. The present invention discloses a rapid exchange medical catheter having a wire guiding means external to the shaft (35) for...http://www.google.es/patents/US5667521?utm_source=gb-gplus-sharePatente US5667521 - Rapid exchange catheter
