A non-invasive blood constituent measuring instrument and measuring method
CA 2481981 C · Owner: Yu.Sys.Corporation · Inventors: Yamakoshi, Ken-Ichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A non-invasive blood constituents measuring instrument measures blood constituent values including blood glucose concentration in a living body. The instrument is composed of a light source (11) to irradiate a light containing plural wavelengths to a living body (13), a light detector (14) to detect the light transmitted through a living body or reflected thereon, an instantaneous spectrum analyzer (15) to analyze the light transmitted through the living body or reflected thereon at different times a subtraction , processor(18)to generate spectrum subtraction from the spectrum of the light at the different times measured by the spectrum analyzer(15), and a blood glucose …
Read the whole patent
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 March 25, 2003 and granted February 7, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 25, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 25, 2025.
- 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.