Bone screw with two-part screw head
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United States of America Patent
Stats
-
Dec 16, 2003
Issued Date -
N/A
app pub date -
Jan 7, 2002
filing date -
Jul 7, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention is related to a fastener and a bone fixation assembly for the internal fixation of vertebral bodies. The bone fastener includes a shank having a longitudinal axis, a head positioned adjacent the top end of the shank and having at least two portions separable in the axial direction. The head includes a bottom portion connected to the shank and a top portion connectable to the bottom portion. The bottom portion defines a socket situated coaxially to the longitudinal axis to accept a driver to rotate the fastener, and the top portion has an exterior with a convex design.
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Family
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Cited Art Landscape
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