The swallowable capsule, and its tether
Within the capsule is an optical frequency domain imaging (OFDI) system, which incorporates a rapidly-spinning near-infrared laser
Barrett’s esophagus is a precancerous condition typically caused by chronic exposure to stomach acid, and is usually diagnosed by inserting an endoscope down the patient’s throat. A tool has been developed, however, that should allow for a quicker, easier way of getting a good look at such peoples’ esophagus – it’s a swallowable capsule that contains a spinning laser.
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