Hemostasis valve
CA 2437352 A1 · Owner: Boston Scientific Limited · Inventors: Lafontaine, Daniel M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A hemostasis valve which provides a fluid tight seal at all times to prevent back-bleeding, and offers relatively low friction when devices are inserted therein. The hemostasis valve may either be an integral part of a tubular device (e.g. sheath, catheter, or the like) or releasable from the tubular device (e.g. Y-adapter or the like). In one embodiment the hemostasis valve , is biased to a closed position in response to distal pressure to prevent backbleeding. The hemostasis valve is also biased to an open position in response to proximal force or pressure to reduce friction when devices are inserted therein. For example, the hemostasis valve may comprise a plurality of leaflets or …
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 September 13, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 13, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 13, 2023.
- 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.