News Summary: Robots crawl in bodies for surgery

Associated Press Published: May 29, 2012
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MEDICAL ROBOTS: A tiny snake robot can crawl through your body, helping a surgeon identify diseases and perform surgery on hearts, prostate cancer, and other diseased organs.

HOW IT WORKS: The snakebots carry tiny cameras, scissors and forceps, and even more advanced sensors are in the works. For now, they're powered by tethers that humans control.

THE FUTURE: Experts say the day is coming when some robots will roam the body on their own.