Surgery – Truss – Pad
Patent
1995-09-21
1997-12-09
Cohen, Lee S.
Surgery
Truss
Pad
128664, 128665, A61B 500
Patent
active
056949316
ABSTRACT:
A method for measuring a concentration of an absorptive constituent in a scattering medium comprises the steps of emitting of light having two or more predetermined wavelengths; making said light incident at a light incidence position into said scattering medium; detecting said light at one or more photodetection points to acquire one or more photodetection signals; detecting light quantities and average flight pathlengths for said respective wavelengths of light based on said signals; and obtaining a concentration of said absorptive constituent by arithmetic processing using said light quantities and average flight pathlengths based on a predetermined relationship. The method permits absolute-value measurement of the concentration of the absorptive constituent inside the scattering medium having various exterior shapes.
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Cohen Lee S.
Hamamatsu Photonics K.K.
Winakur Eric F.
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