Heartbeat-Powered Pacemaker

The idea proposed by reseachers at the University...  ...f Michigan is to harvest the energy released by a heartbeat to power the pacemaker regulating the same heart:...  ...ctricity.In tests designed to simulate a range of heartbeats , enough electricity was generated to power a pace...

http://www.neatorama.com/2012/11/10/Heartbeat-Powered-Pacemaker/