A cardiac pacemaker includes a power transmitter which periodically transmits a pulse of a radio frequency signal to a vascular electrode-stent that is implanted in a vein or artery of an animal. The vascular electrode-stent employs energy from the radio frequency signal to charge a storage device which...http://www.google.ca/patents/US20050096702?utm_source=gb-gplus-sharePatent US20050096702 - Intravenous cardiac pacing system with wireless power supply