| 摘要 |
An intervertebral disk prosthesis or nuclear prosthesis ( 1 ) includes a longitudinal, flexibility-yielding object ( 2 ) that can be spiral-wound ( 2 ), with a first exterior end ( 3 ), a second interior end ( 4 ) and a longitudinal central axis ( 5 ). The cross-section ( 10 ) of the object ( 2 ), which is orthogonal towards the central axis ( 5 ), is reduced in size towards the second interior end ( 4 ).
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