SPINAL STABILIZATION SYSTEMS AND METHODS
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United States of America Patent
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N/A
Issued Date -
Jul 24, 2008
app pub date -
Dec 18, 2007
filing date -
Dec 29, 2006
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A spinal stabilization system includes bone fastener assemblies to be coupled to vertebrae. Each bone fastener assembly includes a bone fastener and a collar. The bone fastener has a head portion having at least a first cross-sectional shape in a first plane, and a second cross-sectional shape in a second plane. The collar has a circular opening in the bottom, with a relief extending from the circular opening. The second cross-sectional shape of the bone fastener is keyed to the opening to permit insertion of the bone fastener into the collar assembly from the bottom. After insertion, the bone fastener is rotated to prohibit removal of the bone fastener from the collar. The collar can then be rotated and/or angulated relative to the bone fastener. An elongated member can be positioned in the collar and a closure member is then used to secure the elongated member to the collar.
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Family
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