Method and device for the noninvasive determination of hemoglobin and hematocrit
CA 2404925 A1 · Owner: Khalil, Omar S. · Inventors: Jeng, Tzyy-Wen; Khalil, Omar S.; Kantor, Stanislaw
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for the determination of hemoglobin and hematocrit by means of an apparatus that is capable of controlling the temperature of a defined subcutaneous volume of human skin. The method involves a calculation of hemoglobin concentration and hematocrit value that takes into consideration the values of optical parameters of the sample at various pre-set temperatures. It employs steady state optical measurements of samples such , as, for example, human tissue, by means of a reflectance tissue photometer and localized control of the temperature of the sample. An optical signal from a defined subcutaneous volume of human skin is measured as the temperature of this volume is …
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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 May 7, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 7, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 7, 2023.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.