Patent ID: 9662047
Date: 2017-05-30
CPC Classifications: A61B,G01J,G01N,Y02A

Claim:
1. A method for measuring glucose concentration in a patient comprising: illuminating a region of tissue with light including a plurality of sequential illumination wavelengths; detecting Raman shifted light from the tissue with a detector in response to the plurality of sequential illumination wavelengths of light; determining, with a data processor, a subset of the sequential illumination wavelengths using error minimization to define a plurality of separated spectral illumination bands, each spectral illumination band including a plurality of different illumination wavelengths, the determining step including processing the detected Raman shifted light to determine the illumination wavelengths of the plurality of separated spectral illumination bands; subsequently, illuminating a region of tissue in the patient, the region of tissue having a glucose concentration to be measured, with illuminating light having the plurality of different illumination wavelengths within each of the plurality of separated spectral illumination bands; detecting light from the tissue with the detector in response to the plurality of separated spectral illumination bands of light, the detector generating Raman spectral data; and analyzing the Raman spectral data with the data processor to determine a concentration of glucose in the region of tissue in the patient.