The Seattle Times

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KEITH SRAKOCIC / AP
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Tuesday, May 29, 2012

Tool-wielding robots crawl in bodies for surgery

Carnegie Mellon University Professor Howie Choset, right, stands beside a robot as staff researcher Florinan Enner uses a controller to demonstrate how it climbs up a tubular armature at their lab on campus in Pittsburgh. Scientists and doctors are using the creeping metallic tools to perform surgery on hearts, prostate cancer and other diseased organs.