WearTec

“Life-saving medical implants like pacemakers and defibrillators face a big drawback: their batteries eventually run out. So every few years, patients need surgery to have the batteries replaced. Now a company in New York state is planning to tackle the problem by providing patients with an implantable power source that recharges their implant’s batteries using electricity generated by the patient’s own body heat.”

The device would contain thousands of thermoelectric generators, which generate electricity through different temperatures on either side of the generator. An area close to the skin would provide sufficient temperature difference for the generators to work.

[via igargoyle]