Heart valve leaflet with reinforced free margin
CA 2378103 A1 · Owner: Moe, Riyad E. · Inventors: Moe, Riyad E.; Sarnowski, Edward; Gong, Xiao Yan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A flexible leaflet heart valve (10) includes a base (14) a peripheral portion , (12) and a plurality of leaflets (18). Each leaflet (18) includes a scalloped free margin (22) having opposite ends and a mid-portion (50) between the opposite ends. The opposite ends are attached to the peripheral portion (12) of the valve at a first height (T1) above the base (14). The mid-portion (50) of each free margin (22) is positioned at a second height (T2) above the base less than the first height (T1). Each free margin (22) is adjacent each other free margin (22) to form a gap (24) therebetween. Each leaflet (18) is of a first thickness (T1) and at least a portion of each free margin (22) is of …
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 18, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 18, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 18, 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.