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Expired Canadian patentCanada

Device and method for treatment of tissue adjacent a bodily conduit by thermocompression

CA 2460907 C · Owner: Mon, John · Inventors: Mon, John; Smith, Dennis

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A method and apparatus of treating tissue adjacent to a bodily conduit using thermotherapy, while preventing obstructions of the bodily conduit due to edema employs the circulation of warmed fluid to maintain the temperature of the bodily conduit walls and compresses the tissue to be treated to increase the effectiveness of the irradiated heat. An energy-emitting source containing catheter is inserted in a bodily conduit and is positioned in a region of the tissue to be treated so that the energy-emitting source radiates energy to the tissue to be treated. Fluid warmed to over 30~C is circulated into and through the catheter to warm walls of the bodily conduit adjacent the catheter. …

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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 September 13, 2002 and granted November 19, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 13, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 13, 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.
FiledSeptember 13, 2002
GrantedNovember 19, 2013
Term endedSeptember 13, 2022
Patent numberCA 2460907 C
Classification (IPC)A61B18/04 +1 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedSep 13, 2002Patent grantedNov 19, 2013Term endedSep 13, 2022

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.