Determining femoral cuts in knee surgery
CA 2482851 C · Owner: Richard, Alain · Inventors: Garceau, Patrick; Richard, Alain; Dominati, Simon-Paul
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for determining a distal cut thickness and posterior cut thickness for a femur in a knee replacement operation stores data relating to size and shape , of femoral implants. A tracking device tracks said femur and a tibia in a reference , coordinate system. A registration module is used for registering a femur representation, a tibia representation and a femoral posterior cut to said reference , coordinate system. A gap measurement module is adapted to measure an extension gap and a flexion gap using said femur representation and said tibia representation as registered in said reference coordinate system and adapted to , generate measurement data. A cut thickness computing …
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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 April 30, 2003 and granted January 15, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 30, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 30, 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
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.