The medical device diagnostic company uses an optical-based sensor in an ingestible capsule to detect bleeding in the upper gastrointestinal tract, which is then processed by an algorithm to determine the presence of blood, eliminating the need for endoscopy. The device includes an external receiver that acquires data from the environment, allowing doctors to monitor and detect gastrointestinal bleeding in real time. EnteraSense's technology offers a less complicated and invasive way to diagnose and monitor upper gastric bleeds, potentially improving patient outcomes.