A way to charge pacemakers using the heart’s own muscle

Zhang Hao of the Second Military Medical University, in Shanghai, and Yang Bin of Shanghai Jiao Tong University sought a way of recharging a pacemaker’s battery by scavenging energy from inside the body. To test this idea, the capsule’s electrodes were attached to a commercial pacemaker that had had its battery removed, and surgically implanted into a 50kg Yorkshire pig. The capsule generated enough power for the pacemaker to function normally.

Source: www.economist.com