Constrained prosthetic knee with rotating bearing
CA 2439344 A1 · Owner: Aikins, Jerry L. · Inventors: Sisk, Bill N.; Hayward, Bill H.; Cook, Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A constrained prosthetic knee having a modular hinge post and a rotating bearing. A, cannulated hinge post is rotatably connected to the femoral component of the knee prosthesis, so that a hinge post extension may be anteriorly positioned through the hinge post and into, the tibial component of the knee prosthesis after positioning of the femoral , component in the femur and the tibial component in the tibia. The hinge post is preassembled to the femoral, component so that such assembly is not required during the implantation procedure. A, meniscal component forming the rotating bearing of the knee prosthesis is packaged together, with the hinge post extension so that the appropriate …
Read the whole patent
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 September 3, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 3, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 3, 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.