Ventilatory stablization technology
CA 2362177 C · Owner: Hajduk, Eric Andrew · Inventors: Remmers, John E.; Hajduk, Eric Andrew; Platt, Ronald Scott
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention is a system for reducing central sleep apnea (CSA) in which certain methods of increasing a patient's re-breathing during periods of the sleep cycle are used. The over-oxygenation which typically results from the over-breathing period can be reduced, thus reducing the compensating underbreathing period, and effectively reducing the loop gain associated with the CSA. One embodiment of the device includes a blower (60) a mask (64) with a , gas exit (66), a tube (62) connected between the blower and the mask.
Read the whole patent
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 4, 2000 and granted April 17, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 4, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 4, 2022.
- 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.