Ingestible Origami Robot to remove Button Battery stuck to wall of Stomach

Ingestible Origami Robot to remove Button Battery stuck to wall of Stomach

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Researchers at MIT have demonstrated a tiny
origami robot that can remove a swallowed button battery . This Origami robot can unfold itself from
a swallowed capsule and, steered by external magnetic fields, crawl across the stomach
wall to remove a swallowed button battery or patch a wound. Every year, 3,500 swallowed button batteries
are reported in the U.S. alone. Frequently, the batteries are digested normally, but if
they come into prolonged contact with the tissue of the stomach, they can cause an electric
current that produces hydroxide, which burns the tissue. The new robot consists of two layers of structural
material sandwiching a material that shrinks when heated. A pattern of slits in the outer
layers determines how the robot will fold when the middle layer contracts.

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