Endroprosthesis for intervertebral discs
CA 1263201 C · Owner: Schumann, Roland · Inventors: Schellnack, Kurt; Helisch, Hans-Joachim; Erkel, Klaus-Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a multipart endoprothesis of the Nucleus pulposus which is inserted between base plate and cover plate of two adjacent vertibral bodies and is for re-establishing and maintaining the distance in the intervertbral space and permits a mobility in the physiological range. Such an endoprothesis of the Nucleus pulposus has biochemical and biomechanical tolerance, natural stability on absorbing compression and can be inserted without substantial treatment of the adjacent vertebral bodies while excluding a mechanical destruction of the adjoining vertebral bodies. Three embodiments are provided. First the vertebral disc endoprothesis comprises a pair of symmetrical …
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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
- Granted November 28, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 28, 2006.
- 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.