Experimental Device Uses Heartbeat to Power PacemakerPatients whose hearts need a bit of help keeping the beat are often given a pacemaker, which delivers electrical pulses to regulate heartbeats. The tiny electronic devices, surgically implanted beneath the skin on the chest, must be replaced every five to seven years when their batteries run out.
But an experimental device that converts energy from the heartbeat itself could provide enough electricity to operate the pacemaker indefinitely. The cardiac energy harvester uses piezoelectricity, ...
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