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Expired Canadian patentCanada

System for activating an electrosurgical instrument

CA 2466237 C · Owner: Blaha, Derek M. · Inventors: Blaha, Derek M.

CIPO record

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Abstract From the Canadian patent

A system is disclosed for activating an electrosurgical instrument. The system includes an electrosurgical assembly a control assembly, and an activation device. The electrosurgical assembly includes an electrosurgical instrument and a driver circuit operatively coupled to the electrosurgical instrument. A controller circuit a safety circuit, and a latch circuit are included within the control assembly and interface between the electrosurgical assembly and an activation device. Instrument data and supervisory monitoring data originate in the electrosurgical assembly and they are communicated to the controller circuit and the safety circuit. The electrical cooperation among the controller …

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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 4, 2004 and granted October 2, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 4, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 4, 2026.
  • 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 4, 2004
GrantedOctober 2, 2012
Term endedMay 4, 2024
Patent numberCA 2466237 C
Classification (IPC)A61B17/00 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedMay 4, 2004Patent grantedOct 2, 2012Term endedMay 4, 2024

Sources & verification

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