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Expired Canadian patentCanada

Method and system for optically detecting blood and controlling a generator during electrosurgery

CA 2484875 C · Owner: Podhajsky, Ronald J. · Inventors: Podhajsky, Ronald J.

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Abstract From the Canadian patent

A method and electrosurgical system for optically detecting blood and controlling an electrosurgical generator are provided. An optical blood detection system is used for optically detecting blood and may be included as an integral part of the overall electrosurgical system's circuitry or may be , designed as a separate unit that connects to and controls, an electrosurgical , generator. The optical blood detection system may be embodied through a variety of analog, digital and/or optical circuit components or arrangements including software running on computational and memory circuitry. The optical blood detection system controls the output mode and energy of the electrosurgical …

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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 May 6, 2003 and granted April 23, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 6, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 6, 2025.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 6, 2003
GrantedApril 23, 2013
Term endedMay 6, 2023
Patent numberCA 2484875 C
Classification (IPC)A61B18/12 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedMay 6, 2003Patent grantedApril 23, 2013Term endedMay 6, 2023

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