Electrosurgical instrument for fragmenting, cutting and coagulating tissue
CA 2499391 A1 · Owner: Sherwood Services Ag · Inventors: Hogan, Michael; Garrison, David Mcmurray; Sartor, Joe Don
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electrosurgical instrument for fragmenting cutting and coagulating tissue , is described which includes a handpiece a tool assembly and a nosecone. , Preferably the tool assembly is formed of an electrically conductive material and includes a first end having a distal tool tip and a second end adapted to be connected to an acoustic vibrator. The tool assembly at least partially defines an aspiration channel and is preferably supported by the handpiece. The nosecone is positioned about a distal end of the handpiece and a proximal end of the tool assembly in a fluid tight manner. A switch assembly for controlling delivery of electrosurgical energy to the tool assembly is supported …
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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 19, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 19, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 19, 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.
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.