Intervertebral implant
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United States of America Patent
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-
Mar 20, 2007
Grant Date -
Jun 24, 2004
app pub date -
Dec 19, 2002
filing date -
Dec 19, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
A vertebral implant for fusing adjacent vertebrae or for replacing vertebral bodies is disclosed. The implant is a biocompatible metal, resorbable, or radiolucent implant conforming substantially in size and shape with an end plate of a vertebra. The implant preferably has a wedge-shaped profile to restore disc height and the natural curvature of the spine. The top and bottom surfaces of the implant have areas with a plurality of teeth to resist expulsion and provide initial stability and areas devoid of any protrusions to receive implantation instrumentation. The implant also has a stackability feature. The implant provides initial stability needed for fusion without stress shielding.
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