A first electrode is positioned within an artery proximate an implanted intravascular stent. A second electrode is positioned at a separate location relative the position of the first electrode. Electrical energy is then delivered between the first and the second electrodes to produce an electrical field...http://www.google.ca/patents/US6317615?utm_source=gb-gplus-sharePatent US6317615 - Method and system for reducing arterial restenosis in the presence of an intravascular stent
