Method for treating dysphagia with electrical stimulation
CA 2233195 C · Owner: Freed, Marcy L. · Inventors: Beytas, Erol M.; Christian, Michael O.; Asmar, Marie
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention is directed to a simple non-invasive method and device for , treating dysphagia and artificially promoting swallowing by electrical stimulus. In the present invention a plurality of electrodes are , selectively placed in electrical contact with tissue of a pharyngeal region of patient and a series of electrical pulses in electrical contact with each of the plurality of electrodes with a generator. The generator includes a pulse rate modulator for generating each of the electrical pulses having a frequency generally fixed at 80 hertz a pulse width, modulator for generating each pulse of the series of electrical pulses at a duration generally fixed at 300 microseconds and a …
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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 October 25, 1996 and granted April 9, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 25, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 25, 2018.
- 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.