Inventors

Zhi XuFollow

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Abstract

Systems and methods are disclosed for non-invasively measuring blood glucose levels in a biological sample based on spectral data. A variety of techniques are disclosed for improving signal-to-noise ratio in the acquisition of spectral data and calculating attenuance of light attributable to blood in a sample. Disclosed techniques include (1) using a standard deviation operation in conjunction with the logarithm function, (2) using a normalization factor, (3) using a ratio factor, (4) accounting for the effect of temperature on various system components such as resistors, and (5) accounting for dark current in a light detector by performing a calibration.

Patent Number

US8340738B2

Assignee

The Curators of the University of Missouri, St. Louis, MO

Application Number

12/425,535

Date Filed

4-17-2009

Issue Date

12-25-2012

Comments

8340738

Method and system for non-invasive optical blood glucose detection utilizing spectral data analysis

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