Portable pressure transducer, pneumotach for use therewith, and associated methods
CA 2694444 C · Owner: Durst, Kevin · Inventors: Kofoed, Scott A.; Durst, Kevin; Orr, Joseph A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for sensing respiratory pressure includes a portable pressure transducer (50) configured to be carried by or proximate to a respiratory conduit such as a breathing circuit or a nasal canula. The portable pressure transducer (50) may removably couple with a pneumotach (20) in the form of an airway adapter, disposed along the respiratory conduit. The pneumotach may include two pressure ports (24 34) positioned at opposite sides of an obstruction which partially blocks flow through a primary conduit of the pneumotach (20). Corresponding sample conduits (55 56) of the portable pressure transducer (50) removably couple with the pressure ports (24 34). The pressure ports (24, 34) may …
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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 May 7, 2002 and granted April 1, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 7, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 7, 2024.
- 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.