Aortic catheter with flow divider and methods for preventing cerebral embolization
CA 2358995 A1 · Owner: Esch, Brady · Inventors: Lee, Michael J.; Samson, Wilfred J.; Esch, Brady
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention is a catheter with a fluid flow divider positioned near the distal end of the catheter for dividing a first lumen into two channels at a point where a second lumen branches from the first lumen and for selectively , perfusing the branch lumen and the first lumen. The invention is particularly suited for use in the aortic arch. The fluid flow divider may comprise one or more inflatable chambers or one or more deployable shrouds comprising a plurality of arms with a web extending between adjacent arms. The inflatable chambers may be relatively noncompliant or they may be compliant exhibiting , elastic behavior after initial inflation to closely fit the aortic lumen size , …
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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 January 22, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 22, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 22, 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.