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Expired Canadian patentCanada

Method and apparatus for treating cheyne-stokes respiration

CA 2581758 C · Owner: Siirola, Rochelle · Inventors: Duff, Winslow K.; Kane, Michael T.; Siirola, Rochelle

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A system and method for delivering a flow of breathing gas to an airway of a patient. The system monitors a characteristic that varies based on variations of the flow of the breathing gas and determines a Target Flow for the gas to be delivered to the patient based on the monitored characteristic. The Target Flow is set to a level sufficient to treat Cheyne-Stokes respiration or a sleep disordered breathing event. The system also alters the Target Flow based on a determination that the patient is experiencing a sleep disordered breathing event. In a further embodiment the system determines an apnea , detection time (Tapnea) as Tinspplus a constant and delivers a machine , triggered …

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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 September 29, 2005 and granted August 12, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 29, 2025.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 29, 2005
GrantedAugust 12, 2014
Term endedSeptember 29, 2025
Patent numberCA 2581758 C
Classification (IPC)A61M16/00

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedSep 29, 2005Patent grantedAug 12, 2014Term endedSep 29, 2025

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.