Monitoring blood substances using self-sampled tears

Details Monitoring blood substances using self-sampled tears Monitoring blood substances using self-sampled tears

A - Human Necessities

61

B

A61B 5/00 (2006.01) C12Q 1/32 (2006.01) C12Q 1/54 (2006.01) G01N 33/487 (2006.01) G01N 33/52 (2006.01) G01N 1/10 (2006.01) G01N 1/14 (2006.01)

Patent

CA 2481501

A method and apparatus for non-invasively determining the concentration of a substance in blood, such as glucose, include a sample portion (12) arranged for contacting an eye region of a user to obtain a tear fluid sample, a sensor (21) in communication with the sample portion (12) for generating a signal related to the tear substance concentration, and a processor (44) in communication with the sensor (21) for determining a blood substance concentration corresponding to the tear substance concentration.

L'invention concerne un procédé et un dispositif permettant de déterminer d'une manière non effractive la concentration dans le sang d'une substance telle que le glucose. Ce dispositif comprend une section échantillon conçue pour entrer en contact avec une région de l'oeil de l'utilisateur de manière à prélever un échantillon de liquide lacrymal, un capteur communiquant avec la section échantillon et permettant de générer un signal se rapportant à la concentration de la substance mesurée dans le liquide lacrymal, et une unité de traitement communiquant avec le capteur et permettant de déterminer la concentration sanguine de la substance correspondant à la concentration dans le liquide lacrymal de cette même substance.

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