Abstract
Lower gastrointestinal bleeding (LGIB) and occult gastrointestinal bleeding (OGB) account for approximately 200,000 hospitalizations per year in the U.S., and a definitive etiology remains elusive in 40-88% of patients after initial endoscopy. We have developed an endoscopically implantable wireless biosensor system which detects bleeding and then emits a wireless emergency signal to medical personnel using Bluetooth technology. The biosensors can be implanted singly to detect occurrence of rebleeding, or they can be implanted in series to help with localization of obscure bleeding sources.
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