Electrode needle with radiofrequency active filament
CA 2361777 C · Owner: Thermo-Med 2000 Kft · Inventors: Maltese, Michele
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Electrode needle for the treatment of parenchymatous tumours through radiofrequency-induced interstitial hyperthermy comprising a , hollow guide needle (11) and a radiofrequency active filament (12) threaded into the needle, connectable to a radiofrequency generator and capable of axial movements between an inactive position retracted into the needle and an active position of protrusion of a terminal segment of the filament from the distal end of the needle characterised in that said , terminal segment (13) of the filament is shaped to pass from a rectilinear shape when the filament is in retracted position into the needle to a , spiral shape when the filament is in the active forward …
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 9, 2001 and granted January 4, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 9, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 9, 2023.
- 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.