At the upcoming ILSI-Biomed Israel 2009 conference (June 15-17 in Tel Aviv), researchers from the Medical Robotics Laboratory at the Israel Institute of Technology (Technion) will be showing off a microrobot called ViRob, that has only a 1millimeter diameter and can crawl through vessels and cavities, when controlled by an external magnetic field.
"Cavities." Uh-huh. We know what they're talking about.
[Follow me on Twitter.]