Improvements in diagnosis by means of fluorescent light emission from tissue
CA 2027561 C · Owner: Stenram, Unne · Inventors: Svanberg, Katarina; Stenram, Unne; Andersson-Engels, Stefan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sample (1) is irradiated by a pulse from a laser (2) creating fluorescence , radiation, which is brought in imaging relation, or otherwise, to a detector (6) sensing from the same sample (1) in a plurality of spectral intervals (6A-6D) for obtaining intensity, values. The radiation may be sensed in imaging relation creating a , multiplicity of said pluralities. The spectral intervals may be wavelength defined by passband filters (5A-5D) or time interval defined time spectral intervals controlled by a computer (7) which makes a numerical evaluation comprising a division. The tissue character may then be evaluated from the evaluation.
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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 21, 1990 and granted February 20, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 21, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 21, 2012.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.