BLOOD CONTENT DETECTING CAPSULE

摘要

A capsule (1) employing components for detecting blood content or hemoglobin concentration within tissue (3) forming a lumen in vivo advantageously permits screening or diagnosis of certain diseases. In one embodiment, the capsule (1) includes a light source (6) for intermittently illuminating a region of tissue (3) and a light detector (16) for receiving interacted light from the tissue (3) and hemoglobin therein. Methods of validating data of interacted light signal are also disclosed. A power conservation method of detecting the blood content values at different rates is further disclosed.