Method and apparatus for providing positive airway pressure to a patient
CA 2323455 A1 · Owner: Fiore, John H. · Inventors: Estes, Mark C.; Mechlenburg, Douglas M.; Fiore, John H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system including methods and apparatus for treatment of a medical disorder such as obstructive sleep apnea or congestive heart failure. The system involves applying separate and independent gains (24) to flow rates of pressurized gas delivered to a patient (12) during inspiratory expiratory , phases of a respiratory cycle to deliver the pressurized gas in proportion to the respective gains during inspiration and expiration. A base pressure profile may be employed to assist or control inspiration. The system may be fully automated responsive to feedback provided by a flow sensor (22) that determines the estimated patient flow rate. A leak computer (32) can be included to …
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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 March 11, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 11, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 11, 2021.
- 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.