Non-invasive method for diagnosing alzheimer's disease in a patient
CA 2195877 C · Owner: Beth Israel Hospital Association · Inventors: Daffner, Kirk R.; Scinto, Leonard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides non-invasive methods for diagnosing Alzheimer's disease in a living human subject. One method employs a non-invasive automated apparatus which can continuously monitor pupil diameter size over time; repetitively measure pupil diameter size over time for a pre-chosen duration ranging from about less than 1 second to about 5 minutes; and cumulatively record size information as it is obtained over time. A second method employs an apparatus which can repetitively measure pupil constriction velocity for a pre-chosen duration both before and after stimulation by visible light. Both methods require the administration of at least one neural transmitter …
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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 24, 1995 and granted December 5, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 24, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 24, 2017.
- 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.