Radiation delivery catheter
CA 2305374 A1 · Owner: Radiance Medical Systems, Inc. · Inventors: Von Hoffmann, Gerard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a delivery catheter (10) adapted for delivery of a dose of radiation to a vessel wall (12). A radiation source (32) is enlarged from a first, reduced cross-sectional profile to a second enlarged cross-sectional profile by unwinding around a central core (22). Following delivery of a radiation dose to the vessel wall (12) the source (32) is reduced in profile by wrapping around the core (22), and removed from the treatment site.
Read the whole patent
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 4, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 4, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 4, 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.