Electrosurgical devices and methods for selective cutting of tissue
CA 2528056 C · Owner: Microsurgical Technology, Inc. · Inventors: Sorensen, John T.; Mirhashemi, Soheila; Gerg, James B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Methods and devices for cutting or coagulating tissue. A device comprises an elongate member (14) having a distal end at least one foot member (16) , extending from the distal end of the elongate member said foot member (16) , having a upper surface (US) and a lower surface (LS) an electrically and , thermally insulating covering formed on at least the lower surface of the foot member and at least one electrode (26, 28) on the upper surface of the foot member (16). In operation, the at least one electrode (26 28) is energized so , as to cause cutting or coagulation of tissue located above the upper surface of the foot member (16) while not causing substantial damage to tissue located …
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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 10, 2004 and granted July 29, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 10, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 10, 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.
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.