Patent ID: 8911368

Claim:
An in-vivo sensing system for detecting blood comprising: an in-vivo sensing device comprising: a housing having a capsule portion and having a first portion and a second portion protruding from, and integrally formed with, said capsule portion, said first and second portions defining therebetween a gap that is external to said capsule portion of said housing and is configured to allow in-vivo fluids to flow freely through the gap, wherein said first portion and said second portion are on opposing sides of the gap; said first portion enclosing an illumination source configured to emit light at a narrow band illumination wavelength into the gap and illuminate the in-vivo fluids flowing therethrough; said second portion enclosing a light detector positioned on an opposing side of the gap from, and facing across the gap towards, the illumination source, and configured for detecting light that passed from the illumination source, across the gap and through the in-vivo fluids flowing therein; a transmitter for transmitting signals detected by the light detector; a receiver for receiving the detected signals; and a processing unit for comparing the detected signals to a predetermined threshold thereby determining the presence of bile and blood in-vivo.