Analyte measurement meter or system incorporating an...

G - Physics – 01 – N

Patent

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Details

G01N 33/487 (2006.01) G01N 27/416 (2006.01)

Patent

CA 2590956

Many aspects of the invention will be apparent from the following paragraphs and detailed description some of which are as follows. In one example, the invention includes a circuit for measuring an analyte or indicator in a body fluid sample including a reference voltage circuit, at least one measurement line, a result line, a buffering circuit between the voltage reference circuit and the measurement line wherein the buffering circuit comprises at least one operational amplifier the output of which is connected to the result line. The circuit may be a glucose concentration measurement circuit delivering the glucose concentration in a body fluid such as for example blood, plasma, interstitial fluid, urine. The circuit may further form part of a meter or system for measuring glucose concentration in a body fluid.

Plusieurs aspects de l'invention seront évidents dans les paragraphes qui suivent et dont la description en détail est la suivante. Dans un mode de réalisation, l'invention comporte un circuit pour la mesure d'un analyte ou indicateur dans un échantillon de liquide organique comprenant un circuit de tension de référence, au moins une ligne de mesure, une ligne de résultat, un circuit tampon entre le circuit de tension de référence et la ligne de mesure, ledit circuit tampon comportant au moins un amplificateur opérationnel dont la sortie est reliée à la ligne de résultat. Le circuit peut être un circuit de mesure de concentration de glucose délivrant la concentration de concentration de glucose dans un liquide organique tel que par exemple, le sang, le plasma, un fluide interstitiel, l'urine. Le circuit peut en outre faire partie d'un compteur ou système pour la mesure de concentration de glucose dans un liquide organique.

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