Patent ID: 6990365

Claim:
An apparatus for measuring hemoglobin index (HbI) in blood of a patient, comprising: a light source generating broadband light; a light-transmission arrangement including a plurality of transmitting fibers positioned for simultaneously transmitting multiple wavelengths of said broadband light from said light source to the blood of the patient; an optical fiber arrangement having a plurality of light detector fibers for leading multi-wavelength light, in spectrally unseparated form, transmitted through, or reflected from, the blood; a light detection arrangement receiving said multi-wavelength light in its spectrally unseparated form from said optical fiber arrangement, for spectrally decomposing the received light, and for determining amplitudes of selected wavelengths of the decomposed light; and, means for utilizing a non-pulsatile element of the blood of the patient for determining a measurement of the hemoglobin index (HbI) in the blood as a function of the amplitudes of the selected wavelengths.