Spinal disc annulus reconstruction method and spinal disc annulus stent
CA 2511671 A1 · Owner: Houfburg, Rodney L. · Inventors: Burns, Matthew M.; Wales, Lawrence W.; Houfburg, Rodney L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides methods and devices for annulus disc repair with and without the use of a patch or stent. The methods and devices are particularly suited to the repair and/or reconstruction of the spinal disc wall (annulus) after surgical invasion or pathologic rupture with reduced , failure rate as compared to conventional surgical procedures.
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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 December 23, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 23, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 23, 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.