Methods and apparatus for sclerosing the wall of a varicose vein
CA 2452369 A1 · Owner: Syntheon, Llc · Inventors: Gottlieb, Saul; Slater, Charles R.; Lary, Banning G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A preferred apparatus for delivering an intravascular drug such as a sclerosing agent (or a microfoam sclerosing agent) to a varicose vein includes a catheter (10) having three concentric tubes (12 14, 16). The innermost tube , (12) has a guide wire lumen (18) and an inflation lumen (20). The distal end of the innermost tube (12) has integral inflatable occlusion balloon (24) in fluid communication with the inflation lumen (20). The intermediate tube (16) has a lumen through which the innermost tube extends. The distal end of the intermediate tube (16) has a self-expanding balloon (28) with a plurality of fluid pores in fluid communication with the intermediate tube lumen. The outer …
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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 July 3, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 3, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 3, 2024.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.