It is a shame you cannot easily recharge batteries in the body. Heart
Venticular Assist Devices (VAD) are all powered by a physical connection to
the outside of the body. I suppose that must be a awkward, and a source of
Of course these things take much more power than a pacemaker.
Artificial hearts have not be successful, but VAD are similar and they are
effective. In some cases, VAD have apparently helped the patients' hearts
recover and improve their function, I guess by reducing the burden of work.