Coated electrosurgical electrode and method of manufacture
CA 2227236 C · Owner: Carr, Jan E. · Inventors: Kuk-Nagle, Karen T.; Millberg, Brian A.; Carr, Jan E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A design and method of manufacture are disclosed for an electrosurgical electrode (10) with a silicone coating. The coating resists the build-up of eschar. The silicone material is thick enough in the flat area of the blade to withstand the electrosurgical voltage without breakdown. The electrosurgical current path is primarily through the blade edges (15) and tip. The flat of the blade remains insulated under most conditions. The relatively thick coating also provides high tear strength and added durability. The composition of the electrode (10) coatings may include silicone elastomers (11) in the form of adhesives, dispersions, or liquid rubbers. The coating composition may also …
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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 June 28, 1996 and granted March 27, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 28, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 28, 2018.
- 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.