Zero corrected optical blood analyte detector

A - Human Necessities – 61 – B

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A61B 5/1455 (2006.01) A61B 5/1495 (2006.01)

Patent

CA 2523670

The present invention is directed to method and apparatus for non-invasively measuring the concentration of an unknown blood analyte present in a patient. The method involves determining the concentration of a reference analyte present in the patient. Using the non-invasive optical instrument of the invention, the concentrations of the reference analyte and unknown analyte are measured. If the measured reference analyte concentration and determined reference analyte concentration are substantially the same, then the measured unknown analyte concentration is displayed. If the measured reference analyte concentration and determined reference analyte concentration are not substantially the same, then an adjustment factor is applied to the measured unknown analyte concentration and the unknown analyte concentration is displayed.

La présente invention concerne un procédé et un appareil pour mesurer de manière non invasive la concentration d'une substance sanguine à analyser inconnue, présente chez le patient. Ce procédé consiste à déterminer la concentration d'une substance à analyser de référence, qui est présente chez le patient, à mesurer les concentrations de la substance à analyser de référence et de la substance à analyser inconnue, au moyen de l'instrument optique non invasif selon cette invention, puis, si la concentration de la substance à analyser de référence mesurée et la concentration de la substance à analyser de référence déterminée sont sensiblement identiques, à afficher la concentration de la substance sanguine à analyser inconnue mesurée, mais si la concentration de la substance à analyser de référence mesurée et la concentration de la substance à analyser de référence déterminée ne sont pas sensiblement identiques, à appliquer un facteur d'ajustement à la concentration de la substance sanguine à analyser inconnue mesurée et à afficher la concentration de la substance sanguine à analyser inconnue.

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