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Expired Canadian patentCanada

Implantable radiotherapy/brachytherapy radiation detecting apparatus and methods

CA 2544766 C · Owner: Proxima Therapeutics, Inc. · Inventors: Stubbs, James B.

CIPO record

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Abstract From the Canadian patent

An interstitial brachytherapy apparatus and method for delivering and monitoring radioactive emissions delivered to tissue surrounding a resected tissue cavity. The brachytherapy device including a catheter body member having a proximal end, a distal end, and an outer spatial volume disposed proximate to the distal end of the body member. A radiation source is disposed in the outer spatial volume and a treatment feedback sensor is provided on the device. In use, the treatment feedback sensor can measure the radiation dose delivered from the radiation source.

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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 November 5, 2004 and granted September 10, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 5, 2024.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 5, 2004
GrantedSeptember 10, 2013
Term endedNovember 5, 2024
Patent numberCA 2544766 C
Classification (IPC)A61N5/10

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedNov 5, 2004Patent grantedSep 10, 2013Term endedNov 5, 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.