Self-charging pacemaker

Self-charging pacemakers are powered by patients’ heartbeats. The invention could do away with risky and expensive battery-replacement surgery.
Engineers at Dartmouth College have invented a dime-sized piece of kit that turns the kinetic energy of the heart into electricity that could power a range of implantable devices. The invention works by adding a thin piece of polymer piezoelectric film, called “PVDF”, to existing devices, such as pacemakers, which converts even the smallest motion into electricity. As well as “recharging” an implanted device, the same modules could also be used as sensors to collect real-time health data on patients.
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England REngadget, Feb 05 2019
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