Heart valve prosthesis having a pivot design for improving flow characteristics
CA 2362318 A1 · Owner: Sulzer Carbomedics, Inc. · Inventors: Gourley, Monti R.; Campbell, Louis A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A heart valve prosthesis (10) having improved flow characteristics. A heart valve prosthesis (10) includes a valve body (12) and a pair of leaflet occluders (18). The valve body (12) includes an interior surface (14) that defines a central passage (16) for blood flow. The pair of leaflet occluders (18) are pivotably mounted in the passage via ears (30) or tabs that are received in recesses (44) formed in the interior surface that defines the central passage (16). The recesses (44) are formed with sloped sidewalls (48) to improve the blood flow therethrough. The recesses (44) are also formed such that the leaflet occluder ears (30) act against at least two surfaces (62) that limit …
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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 12, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 12, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 12, 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.