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Expired Canadian patentCanada

Method and apparatus for measuring glucose in body fluids using sub-dermal body tissue impedance measurements

CA 2568032 C · Owner: Aberg, Peter · Inventors: Aberg, Peter; Ollmar, Stig; Birgersson, Ulrik

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Abstract From the Canadian patent

A method and an apparatus for measuring glucose level in the body fluid of a subject, typically blood glucose level by measuring impedance of a body , tissue with two pairs of electrodes, two electrodes for injecting current into a body tissue and two electrodes for detecting the ensuing voltage of the body tissue. The body tissue is typically a sub-dermal or sub-cutaneous tissue. The measured impedance of the body tissue is used to correlate with directly determined glucose elvels to determine the glucose level from the measured impedance. It is thus possible to determine body fluid glucose levels in a reliable and reproducible manner.

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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 February 4, 2005 and granted April 12, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 4, 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.
FiledFebruary 4, 2005
GrantedApril 12, 2016
Term endedFebruary 4, 2025
Patent numberCA 2568032 C
Classification (IPC)A61B5/14 +2 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedFeb 4, 2005Patent grantedApril 12, 2016Term endedFeb 4, 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.