Method and system for trans-lumenal radio-frequency ablation through an endoscope
CA 2330468 A1 · Owner: The General Hospital Corporation · Inventors: Cosman, Eric R.; Rittman, William J. Iii; Goldberg, Nahum S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A trans-lumenal heat ablation system for the destruction of cancerous tumors includes an ablative element passed through an endoscope. In one embodiment the ablative element is a radio-frequency electrode with a tissue-piercing point at its distal end so that when it emerges from the endoscope it can pierce the wall of the bodily lumen or passageway into which the endoscope has been placed. An ultrasonic imaging device within the endoscope provides image guidance of the tip of the electrode placed within the tumor volume.
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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 April 28, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 28, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 28, 2021.
- 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.