A method for making a drug delivery device, wherein a composition is applied onto a porous inflatable member, the porous inflatable member integrated at a distal end of a catheter-based device, and the composition including a coating material, a first fluid and a second fluid, wherein the second fluid...http://www.google.de/patents/US7115299?utm_source=gb-gplus-sharePatent US7115299 - Balloon catheter for delivering therapeutic agents