Entitled coaxial flow irrigating and aspirating ultrasonic handpiece
CA 2071759 A1 · Owner: Imonti, Maurice M. · Inventors: Imonti, Maurice M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, A coaxial flow irrigation and aspiration ultrasonic handpiece for use in surgical operations includes the combination of an elongated outer shell inner shell and ultrasonic horn assembly disposed within the inner shell. A sealing end cap is provided which functions to center the inner shell within the outer shell as well as to form an irrigation channel therebetween for supplying irrigation fluid to the distal end tip of the surgical handpiece. The sealing end cap includes an irrigation channel and electrical cable integrally therewith to facilitate ease of assembly of the handpiece as well as connection with sources of irrigation fluid and means for providing …
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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 22, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 22, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 22, 2014.
- 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.