A multiple wavelength light spectrophometer for non-invasive monitoring of a body organ in vivo comprising: a single pulsed light source, optical fibers for transmitting to and receiving the infrared radiation from the organ, a radiation detector capable of branching received radiation into several different...http://www.google.es/patents/US5088493?utm_source=gb-gplus-sharePatente US5088493 - Multiple wavelength light photometer for non-invasive monitoring
Multiple wavelength light photometer for non-invasive monitoring