Bronchial flow control devices with membrane seal
CA 2487405 A1 · Owner: Wilson, Peter M. · Inventors: Wilson, Peter M.; Hendricksen, Michael; Hundertmark, Ronald
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a flow control device (610) for a bronchial passageway (15). The device can include a valve member (620) that regulates fluid flow through the flow control device (610), a frame (615) coupled to the valve member (620) and a membrane (625) attached to the frame. At least a portion of the flow control device (610) forms a seal with the interior wall of the bronchial passageway (15) when the flow control device (610) is implanted in the bronchial passageway (15). The membrane (625) forms a fluid pathway from the seal into the valve member (620) to direct fluid flowing through the bronchial passageway (15) into the valve member (610).
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 July 25, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 25, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 25, 2025.
- 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.