Occipito-cervical osteosynthesis instrumentation
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United States of America Patent
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Apr 16, 1996
Grant Date -
N/A
app pub date -
Feb 18, 1994
filing date -
Feb 18, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The instrumentation comprises two separate similar parts, namely a right part (1) and a left part (2), each formed by a cervical rod (3) having asperities and an elongate occipital plate (5) forming one piece with the rod and extending it toward the occiput (6) in the position of use, and adjustable means for anchoring the rod to the vertebrae and the plate to the occiput. Each part is so preangulated and shaped as to be adapted to the anatomy of the occipito-cervical connection. Each rod (3) has two rectilinear sections making therebetween an angle of between about 70.degree. and 90.degree., one of the sections being connected to the occipital plate (5), which is bent so as to correspond to the curvature of the occipital shell. The invention permits conveniently adapting the distance between the rods (3) to the anatomy of the patient and reduces the overall size of the instrumentation, which enables projections under the skin of the occiput to be considerably reduced.
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