Surgery – Truss – Pad
Patent
1993-03-16
1996-10-15
Shay, David M.
Surgery
Truss
Pad
128637, 128664, 128665, 356 39, 356341, 356432, A61N 502
Patent
active
055644171
ABSTRACT:
A pathlength corrected spectrophotometer for tissue examination includes an oscillator for generating a carrier waveform of a selected frequency, an LED light source for generating light of a selected wavelength that is intensity modulated at the selected frequency introduced to a subject, and a photodiode detector for detecting light that has migrated in the tissue of the subject. The spectrophotometer also includes a phase detector for measuring a phase shift between the introduced and detected light, a magnitude detector for determination of light attenuation in the examined tissue, and a processor adapted to calculate the photon migration pathlength and determine a physiological property of the examined tissue based on the pathlength and on the attenuation data.
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Non-Invasive Technology Inc.
Shay David M.
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