4 ms·Plutonium Powered Pacemaker (1974)2 points by mike_esspe 13y agomike_esspe 13y agoPlutonium powered pacemaker with 34 years in service: http://www.nejm.org/doi/full/10.1056/NEJMc072143 http://www.nejm.org/doi/full/10.1056/NEJMc072143