Method and apparatus for stabilization of facet joint
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United States of America Patent
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Jul 6, 2010
Grant Date -
Dec 16, 2004
app pub date -
Jun 13, 2003
filing date -
Jun 13, 2003
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method, system and apparatus for stabilizing a facet joint are provided herein. The surgical method includes angling a screw from a ventral and a lateral side of the spine toward a dorsal and medial side of the spine, and screwing the screw through a superior facet of an inferior vertebra and into an inferior facet of a superior vertebra. The system includes a screwdriver insertable into a surgical opening, a screw coupled to the screwdriver and a torque transmitter coupled to and rotatable with a head on the screwdriver. The screwdriver apparatus includes a handle and a head projecting at an obtuse angle from the handle. The head in turn is coupled to and rotatable with a torque transmitter. The accompanying facet screw includes a sharp and self-tapping point, an ellipsoidal shaft with progressively spaced threads, and a bulbous screw head. The optional cutter includes a narrow, longitudinal shaft with a two-handle closing mechanism.
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