The invention is directed to an inflatable member for delivery of therapeutic agents to a desired site within a patient's body, in particular, balloons for use with balloon catheters and stent delivery systems; balloon catheters and stent delivery systems including the same; and methods for making and...http://www.google.es/patents/US6544221?utm_source=gb-gplus-sharePatente US6544221 - Balloon designs for drug delivery
