Venous anti-reflux implant
CA 2512609 A1 · Owner: Eton, Darwin · Inventors: Eton, Darwin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An extra-vascular cuff-type implant (10) with inflatable membrane(s) (40 42) , is provided to constrict the vein to serve as a venous valve. The inflatable bladder is inflated by hydraulic pressure from a fluid reservoir (12) that is disposed parallel to the vein to mimic normal physiology.
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 December 18, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 18, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 18, 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.