Pressure activated safety valve with high flow slit
CA 2553335 C · Owner: Navilyst Medical, Inc. · Inventors: Dicarlo, Paul; Weaver, Karla
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A medical device valve , comprises a housing including a lumen extending therethrough and a flow control membrane extending across the lumen to control the flow of fluid through the lumen. The membrane includes a plurality of slits extending therethrough so that, when acted upon by a pressure of at least a threshold magnitude the slits , open to permit flow through the lumen and when not , acted upon by a pressure of at least the predetermined magnitude, the slits are maintained closed by a biasing force to prevent flow through the lumen. Each of the slits extends along a curve wherein a distance between a first end of a first one of the slits and a first end of a second one of …
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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 14, 2005 and granted September 11, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 14, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.