Method for non-invasive blood analyte measurement with...

A - Human Necessities – 61 – B

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A61B 5/00 (2006.01)

Patent

CA 2229103

This invention is a method for non-invasive measuring of the concentration of an analyte, particularly blood analyte in blood. The method utilizes spectrographic techniques in conjunction with an improved optical interface between a sensor probe (11) and a skin surface (12) or tissue surface of the body containing the blood to be analyzed. An index matching medium (22) is disclosed to improve the interface between the sensor probe (11) and the skin surface (12) during spectrographic analysis. In a preferred embodiment, the blood analyte concentration in blood is quantified utilizing a partial square analysis relative to a model incorporating analysis of plural known blood samples.

Ce procédé de mesure non invasive de la concentration d'un analyte, notamment dans le sang, recourt aux techniques spectrographiques en conjonction avec une interface optique améliorée, disposée entre une sonde (11) de capteur et la surface de la peau (12) ou d'un tissu corporel contenant le sang à analyser. On décrit un milieu (22) adaptateur d'indice destiné à améliorer l'interface entre la sonde (11) du capteur et la surface de la peau (12) pendant l'analyse spectrographique. Dans un mode de réalisation préféré, la concentration sanguine de l'analyte est quantifiée à l'aide d'une analyse de régression partielle par les moindres carrés par rapport à une analyse incorporant un modèle portant sur plusieurs échantillons sanguins connus.

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