Surgical prosthetic implant for vertebrae
CA 2122336 C · Owner: Depuy Motech Acromed, Inc. · Inventors: Brantigan, John W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Surgical prosthetic modular implants (10 20, 30, 40) used singularly, or stacket together are provided to support and fuse together adjacent vertebrae or to totally or partially replace one or more vertebrae in a vertebral co-, lumn. The implants are rigid annular plugs (11 21, 31, 41), dimensionally si-, milar to normal vertebral bodies have simplified oval or semi-oval shapes with ridged faces (12, 16, 22, 42) to engage adjacent vertebral bodies to resist, displacement and allow bone ingrowth and fusion and to interdigitate with the ridges of an adjacent plug for modular stacking to allow variability of ultimate implant height. The implants can be provided in sets of different …
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 4, 1992 and granted June 17, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 4, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 4, 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.