Method and apparatus for non-invasive blood analyte measurement

A - Human Necessities – 61 – B

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A61B 5/00 (2006.01)

Patent

CA 2373860

A method and apparatus for non-invasively measuring the concentration of an analyte, particularly blood analyte in blood. The method utilizes spectographic techniques in conjunction with means for equilibrating the concentration of the analyte between the vascular system fluid compartment of the test area and the other tissue fluid compartment. An improved optical interface between a sensor probe and a skin surface or tissue surface of the body containing the blood to be analyzed. Multiple readings during the equilibration period are taken and utilized to show the direction and rate of charge of concentration of the analyte in the blood which is useful in optimizing therapeutic response to the collected data.

L'invention concerne un procédé et un appareil pour la mesure non-effractive de la concentration d'un analyte, notamment d'un analyte sanguin dans le sang. Le procédé de l'invention consiste à utiliser des techniques spectrographiques conjointement avec des moyens d'équilibrage de la concentration d'analyte entre le compartiment à liquide du système vasculaire de la zone à tester et un autre compartiment à liquide tissulaire. Une interface optique perfectionnée est prévue entre une sonde de capteur et la surface de la peau ou d'un tissu du corps contenant le sang à analyser. Des relevés multiples sont effectués pendant la période d'équilibrage et sont ensuite utilisés pour déterminer la direction et le débit de la charge de concentration de l'analyte dans le sang, ce qui est utile pour l'optimisation de la réponse thérapeutique à des données collectées.

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