Machining assembly and methods for preparing the medullary cavity of a femur in hip arthroplasty
CA 2219163 C · Owner: Schulzki, Michael · Inventors: Axelson, Stuart; Noble, Philip C.; Hammer, Michael A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A machining assembly, including a novel broach design are disclosed for preparing a, femoral medullary cavity (C) for receipt of a femoral prosthetic stem (S) wherein the, configuration of the implantation site allows for the neutral alignment of the prosthesis (S) within the medullary cavity (C) for improved rigid fixation of the stem (S) therein. Aspects of the inventive machining assembly include a novel broach (10) comprising a proximal lateral recess (13) that allows for initial avoidance of the greater trochanter during implantation, thereby resulting in the preparation of a neutrally aligned cavity with respect to the broach. The machining assembly also includes a guide (200) and …
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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 October 24, 1997 and granted April 17, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 24, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 24, 2019.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.