Patent ID: 6421548
Filing Date: 2002-07-16
Classification: A61B,G01N

Abstract:
An analyte level measurement device for measuring said analyte level in a human body by contacting a skin surface, comprising:a.) an infared source for emitting an IR beam into an ATR plate through a single incident surface, said IR beam having components at least in the region of a referencing wavelength and a measuring wavelength, b.) said ATR plate having a measurement surface for contact with said skin surface and for directing said IR beam against said skin surface, said ATR plate being configured to further direct said IR beam to exit said ATR plate through said incident surface, c.) at least two IR sensors for simultaneously measuring absorbance of at least said referencing wavelength and said measuring wavelength, and d.) a calculator for determining said analyte level using said measured absorbance of said skin surface.