Controlled porosity implantable primary lumen device
CA 2119252 C · Owner: Martakos, Paul · Inventors: Martakos, Paul; Karwoski, Theodore; Herweck, Steve A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An implantable device (10) of porous material has a primary lumen (12) for defining, when implanted, a fluid flow passage, and ae least one secondary lumen (12'). The device may contain bioactive material, e.g. a therapeutic or diagnostic agent in, a secondary lumen (12') for sustained release of the material into a fluid flow pathway of a patient. A secondary lumen (12') may substantially surround the primary lumen (12) and be filled with a reseslable elastomer, allowing repeated puncture of the prosthesis without leakage. One or more secondary lumens (12') may extend parallel to the primary lumen (12) and contain marker material that is remotely detectable to indicate potency of the …
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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 September 16, 1992 and granted July 22, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 16, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 16, 2014.
- 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.