Methods for inhibiting or suppressing stenosis of arteriovenous access fistulas and grafts
CA 2466833 A1 · Owner: Nielsen, Heidi · Inventors: Waters, Christina Ann; Nielsen, Heidi; Stephens, W. Patrick
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for inhibiting or suppressing stenosis associated with an arteriovenous access. A dosage of photosensitive compound is introduced into the artery (14) or vein (12). An anastomotic area (16) of the artery (14) or vein (12) is then exposed to a source of light having a wavelength suitable for photoactivating the photosensitive compound for a period of time sufficient to provide a therapeutic effect. A method is also described for the delivery of drugs into the anastomotic site of an AV access to inhibit the formation of stenotic lesions at those sites.
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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 November 21, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 21, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 21, 2024.
- 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
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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.