Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1999-10-08
2000-12-05
Le, Que T.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
25033909, G01N 1506
Patent
active
061570419
ABSTRACT:
A method and apparatus for non-invasively measuring a biological attribute, such as the concentration of an analyte, particularly a blood analyte in tissue such as glucose. The method utilizes spectrographic techniques in conjunction with an improved subject-tailored calibration model. In a calibration phase, calibration model data is modified to reduce or eliminate subject-specific attributes, resulting in a calibration data set modeling within--subject physiological variation, sample location, insertion variations, and instrument variation. In a prediction phase, the prediction process is tailored for each target subject separately using a minimal number of spectral measurements from each subject.
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Rowe Robert K.
Thomas Edward V.
Le Que T.
Rio Grande Medical Technologies, Inc.
Sandia Corporaton
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