Intervertebral cage
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United States of America Patent
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Nov 14, 2006
Issued Date -
N/A
app pub date -
Aug 19, 2003
filing date -
Aug 20, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
An intervertebral cage of the present invention includes main body defined by an upper surface, a lower surface, and a pair of side surfaces. A withdrawal prevention portion is provided on the upper and/or the lower surfaces of the main body and asymmetrically with respect to the side surfaces in a top or bottom plan view. The withdrawal prevention portion regulates an insertion direction of the intervertebral cage.
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