Surgery – Diagnostic testing – Measuring or detecting nonradioactive constituent of body...
Patent
1999-03-22
2000-11-21
Winakur, Eric F.
Surgery
Diagnostic testing
Measuring or detecting nonradioactive constituent of body...
600340, 600473, 600476, A61B 500
Patent
active
061495891
ABSTRACT:
In the spectroreflectometry oxygenation measuring method and device, a light source produces a light beam having a spectral bandwidth including the wavelengths from 450 nm to 850 nm. A first optical system propagates the light beam from the light source to a two-dimensional area of the fundus of a patient's eye, the light beam being reflected at least in part by the fundus of the patient's eye to produce a reflected light beam. A detector unit detects the spectral content of the reflected light beam and produces a signal indicative of the spectral content of this reflected light beam. A second optical system propagates the reflected light beam from the fundus of the patient's eye to the detector unit. This second optical system comprises an optical scanning sub-system for scanning a plurality of points of the two-dimensional area of the fundus of the patient's eye. Finally, the optical scanning sub-system comprises optical elements for transmitting to the detector unit only a portion of the reflected light beam corresponding to the point of the two-dimensional area being scanned to thereby conduct at this point a spectroreflectometry oxygenation measurement.
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Diaconu Vasile
Faubert Jocelyn
Universite de Montreal
Winakur Eric F.
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