Improved method for spectrophotometric blood oxygenation monitoring
CA 2608426 C · Owner: Benni, Paul B. · Inventors: Benni, Paul B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus for non-invasively determining the blood oxygen saturation level within a subject's tissue is provided. The method includes: providing a , near infrared spectrophotometric sensor transmits light along a plurality of wavelengths , into the subject's tissue; sensing the light transmitted into the subject's tissue using the , sensor, and producing signal data representative of the light sensed from the subject's , tissue; processing the signal data to account for physical characteristics of the subject; , and determining the blood oxygen saturation level within the subject's tissue using a , difference in attenuation between the wavelengths. The apparatus includes …
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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 10, 2006 and granted October 7, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 10, 2026.
- 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.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.