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Expired Canadian patentCanada

Combined apparatus for measuring the blood glucose level from an ocular fluid

CA 2570035 C · Owner: Eyesense Ag · Inventors: Seiferling, Bernhard; Herbrechtsmeier, Peter; Mueller, Achim

CIPO record

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Abstract From the Canadian patent

A combined apparatus for measuring the blood glucose level from an ocular fluid comprises a hand-held fluorescence photometer (D1) for determining the glucose level of the ocular fluid and a device (D2) for the amperometric or photometric determination of the blood glucose level. The fluorescence photometer (D1) comprises: first irradiating means (7,8,10) for providing a pilot beam (1) for irradiation of the eye (3) in order to excite a first fluorescence comprising a first wavelength band; first detecting means (8,9,12,13) for measuring the intensity of the of the pupil fluorescence within the first wavelength band; second irradiating means (17,18,21) for providing a measurement …

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed June 13, 2005 and granted August 13, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 13, 2025.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 13, 2005
GrantedAugust 13, 2013
Term endedJune 13, 2025
Patent numberCA 2570035 C
Classification (IPC)A61B5/00

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedJune 13, 2005Patent grantedAug 13, 2013Term endedJune 13, 2025

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.