Devices, systems, methods and tools for continuous glucose...

A - Human Necessities – 61 – B

Patent

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Details

A61B 5/00 (2006.01) A61B 5/1477 (2006.01) G01N 33/66 (2006.01)

Patent

CA 2602259

One aspect of the invention provides a glucose monitor having a plurality of tissue piercing elements, each tissue piercing element having a distal opening, a proximal opening and interior space extending between the distal and proximal openings; a sensing area in fluid communication with the proximal openings of the tissue piercing elements; sensing fluid extending from the sensing area into substantially the entire interior space of the tissue piercing elements; and a glucose sensor adapted to detect a concentration of glucose in the sensing fluid within the sensing area. Another aspect of the invention provides a method of in vivo monitoring of an individual's interstitial fluid glucose concentration including the following steps: inserting distal ends of a plurality of tissue piercing elements through a stratum corneum area of the individual's skin, the tissue piercing elements each having a distal opening, a proximal opening, an interior space extending between the distal and proximal openings, and a sensing fluid filling substantially the entire interior space; and sensing a glucose concentration of the sensing fluid.

Un aspect de la présente invention a trait à un moniteur du glucose comportant une pluralité d'élément de perçage de tissu, chaque élément de perçage de tissu comprenant une ouverture distale, une ouverture proximale et un espace intérieur s'étendant entre les ouvertures distale et proximale; une zone de détection en communication fluidique avec les ouvertures proximales des éléments de perçage de tissu; un fluide de détection s'étendant depuis la zone de détection pour pénétrer sensiblement tout l'espace intérieur des éléments de perçage de tissu; et un capteur de glucose apte à la détection d'une concentration de glucose dans le fluide de détection au sein de la zone de détection. Un autre aspect de l'invention a trait à un procédé de surveillance in vivo d'une concentration de glucose fluide interstitiel d'un sujet comprenant les étapes suivantes: l'insertion des extrémités distales d'une pluralité d'éléments de perçage de tissu à travers une zone de la couche cornée de la peau du sujet, les éléments de perçage de tissu ayant chacun une ouverture distale, une ouverture proximale, un espace intérieur s'étendant entre les ouvertures distale et proximale, et un fluide de détection remplissant sensiblement tout l'espace intérieur, et la détection d'une concentration de glucose du fluide de détection.

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