Human spinal disc prosthesis
The invention provides a vertebral disc endoprosthesis comprising a nucleus, preferably a resilient nucleus, rigid elements having concave inner surfaces and at least partly surrounding the nucleus, and the endoprosthesis also comprises a seal member formed of flexible material and attached to the r...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | The invention provides a vertebral disc endoprosthesis comprising a nucleus, preferably a resilient nucleus, rigid elements having concave inner surfaces and at least partly surrounding the nucleus, and the endoprosthesis also comprises a seal member formed of flexible material and attached to the rigid elements and surrounding the nucleus. |
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