Researchers at Chongqing University in China have adapted capsule endoscopy to allow for detecting tiny quantities of “occult” blood for screening of early-stage gastric cancer.
The data is automatically transmitted to an external monitoring device in real time for diagnosis by a physician.
The non-invasive Gastric Occult Blood (GOB) capsule, which carries inside a detector, power supply, and wireless transmitter, is encased in non-toxic, acid-safe polycarbonate. The device has a detection limit of 6 micrograms per liter of fluid. Laboratory tests have demonstrated its simplicity and reliability, the researchers say.