Intervertebral disc endoprosthesis having cylindrical articulation surfaces that are curved in a transversally arched manner for the lumbar vertebral column and cervical vertebralcolumn
CA 2582269 C · Owner: Buettner-Janz, Karin · Inventors: Buettner-Janz, Karin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to an intervertebral disc prosthesis for the total replacement of a natural , intervertebral disc within the lumbar and cervical spine comprising , articulating sliding partners where the upper sliding partner has means for a firm assembly to an upper vertebral body and , the lower sliding partner has means for a firm assembly to a lower vertebral body and at least , one sliding surface that is between two sliding partners. According to the invention, functional , two- and three part designs are planned and both prostheses have in common that only a , dorsoventral- and rotation movement is possible as a result of laterolaterally aimed, transversally arched, …
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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 18, 2005 and granted June 18, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 18, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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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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.