| abstract |
A medical device for intra-body conveyance includes a host structure defining an interior area and at least one power supply. The power supplies can include miniaturized batteries, fuel cells, electrochemical reactors, piezoelectric devices, energy harvesting devices that obtains thermal and/or chemical reaction energy from the fluids in and tissue of the lumen and adjacent organs, thermal reactors, heat absorption energy conversion devices and triboelectric energy harvesting devices. |