A new battery-less cardiac pacemaker is based on the automatic wristwatch concept - it is powered by heart motion.
The prototype device presented at ESC Congress 2014 by Adrian Zurbuchen from Switzerland does not require battery replacement.
Zurbuchen is a PhD candidate in the Cardiovascular Engineering Group at ARTORG, University of Bern and said, "Batteries are a limiting factor in today's medical implants. Once they reach a critically low energy level, physicians see themselves forced to replace a correctly functioning medical device in a surgical intervention. This is an unpleasant scenario which increases costs and the risk of complications for patients.