Low profile dilatation catheter having an elongate flexible tubular member with proximal and distal extremities and with a flow passage extending therethrough. An inflatable balloon is mounted on the distal extremity of the elongate flexible tubular member so that the balloon has its interior in communication...http://www.google.es/patents/US4793350?utm_source=gb-gplus-sharePatente US4793350 - Liquid filled low profile dilatation catheter
