Medical handpiece with automatic power switching means
CA 2492075 C · Owner: Manna, Ronald R. · Inventors: Novak, Theodore A. D.; Isola, Scott; Manna, Ronald R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A medical instrument includes a handpiece (12) an electromechanical , transducer (14) disposed in the handpiece (12) and an electrical circuit (100) disposed at least partially in the handpiece for supplying alternating electrical current of a predetermined frequency to the transducer (14). A probe is operatively connected to the transducer for transmitting vibrations generated by the transducer to an operative site in a patient. A switching device (98) is mounted to the handpiece and is operatively connected to the circuit (100) and the transducer (14) for enabling the supply of power to the transducer (14) during a motion of the probe in a preselected direction relative to the …
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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 July 2, 2003 and granted October 2, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 2, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 2, 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.