Functional and biocompatible intervertebral disc spacer containing elastomeric material of varying hardness
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United States of America Patent
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Aug 13, 1996
Issued Date -
N/A
app pub date -
Jul 28, 1993
filing date -
Aug 18, 1988
priority date (Note) -
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Abstract
The construction and manufacturing technique for a functional biocompatible intervertebral disc spacer is described. This device is useful for a replacement for a degenerated disc in certain treatments of back pain and spinal disease. The disc spacer possesses mechanical properties akin to those of the normal disc and will preserve normal functions of the spinal motion segment. The device achieves the desired properties by varying the hardness of the elastomeric material in its nucleus and annulus.
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