Confocal bidirectional laser doppler velocimetry
CA 2261867 A1 · Owner: Riva, Charles E. · Inventors: Riva, Charles E.; Petrig, Benno L.; Geiser, Martial
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus (200) is provided for the measurement of the velocity of blood flowing within a blood vessel of an eye (208) wherein the apparatus includes a light source (244) for producing a source beam of light and an optical element (210) for applying the source beam of light to the blood vessel to scatter a portion of the source beam of light and produce bidirectional scattered beams. A detector system (256) for detecting the bidirectional scattered beams provides signals representative of the scattered beams. The light source and the detector system are disposed in a confocal relationship. An output representative of the velocity of the blood flow velocity is produced in …
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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 July 29, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 29, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 29, 2019.
- 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
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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.