In-situ radioactive stent
CA 2311290 A1 · Owner: Meadox Medicals, Inc. · Inventors: Weadock, Kevin S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Devices and methods for rendering an intravascular device such as a stent radioactive in-situ, after placement. A device is provided having a surface (20) and a first substance (22) immobilized thereon. The first substance (22) preferably has a high and selective affinity for a second substance (26) which can be radioactive, cytotoxic or thrombolytic. The first substance (22) can also have an affinity for growth factors or thrombolytic chemolytic or , cytotoxic agents. The device can be placed across a stenosed blood vessel region, preferably after dilation by angioplasty or atherectomy. After device placement within the vessel, the second substance (26) can be injected into 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 October 29, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 29, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 29, 2020.
- 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.