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December 3, 2007

BME Undergraduates’ Invention Finds ‘Lost’ Orthopedic Screws

Inspired by the device used to find lost coins in the sand, Johns Hopkins undergraduates have invented a small handheld metal detector to help doctors locate hidden orthopedic screws that need to be removed from patients’ bodies. The device emits a tone that rises in pitch as the surgeon moves closer to the metal screw. […]

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