Scalpel blade exchange apparatus and method
CA 2352230 A1 · Owner: Shan, Yansong · Inventors: Yu, Lelia; Shan, Yansong
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A modified scalpel and blade exchanging apparatus and method whereby insertion of the scalpel blade (106) end into the apparatus and turning of the scalpel handle (111) causes the dull or spent blade to be exchanged with a new blade (130) on the scalpel (101) in a few seconds. The quick exchange is accomplished by a cam system (183, 184) that opens and closes the jaws or fingers (104, 105) that retain the blade on the scalpel and a dispenser (119) that positions the new blade in the open jaws or fingers just prior to closure. The new invention solves the problem of detaching and attaching scalpel blades in a matter of seconds without danger to the user. With a mere twist of 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 November 24, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 24, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 24, 2021.
- 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.