Medtronic Vascular, Inc.

Brian Cook

James Mitchell

Paul John Coates

Gianfranco Pellegrini

Mark J Dolan

Natividad Vasquez

A system for treating a vascular condition includes a catheter having an inner member and an outer member, the outer member concentrically arranged about the inner member and a retractable drug delivery device disposed at a distal end of the inner member. A coating disposed on at least a portion of an outer surface of the retractable drug delivery device includes at least one therapeutic agent.

Retractable drug delivery system and method

A drug coating is formed by vaporizing a drug in a deposition chamber having an implantable medical device such as a stent loaded therein. A vacuum is utilized to lower the pressure within the deposition chamber, thereby reducing the temperature necessary to vaporize the drug. The drug is then deposited onto the implantable medical device while in a vapor phase to form the drug coating.

Low temperature drug deposition

A drug delivery stent is formed by a metallic or polymeric tubular strut which is shaped into a generally cylindrical configuration, the tubular strut having a central lumen for containing a therapeutic substance or drug therein. The tubular strut has a continuous channel extending from the inside surface of the strut to the outside surface of the strut positioned spirally about or in a corkscrew fashion around a circumference of the tubular strut for delivering the therapeutic substance or drug to a stenotic lesion. The spiral or corkscrew channel width may be varied along the length of the strut to control elution rate and/or flexibility of the stent. The pitch of the spiral or corkscrew channel may also be varied along the length of the strut to control flexibility of the stent. The stent may be carried on a balloon of a balloon catheter to a site of a stenotic lesion where the stent is implanted.

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Windsor, CA, United States of America

Brian Cook