Method and device utilizing tapered screw shanks for spinal stabilization
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United States of America Patent
Stats
-
Dec 2, 2003
Grant Date -
Jun 27, 2002
app pub date -
Nov 20, 2001
filing date -
Nov 22, 2000
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method and a device are provided for stabilizing vertebrae in a human spine for the purpose of fixing one vertebra with respect to other vertebrae and with respect to other parts of the spinal column. This device comprises a plate and bone screws fabricated from metals. The bone screw maintains the plate in contact with the vertebrae. A tapered screw head is pulled into a machined tapered hole, locking the screw to the plate. The taper is configured to be self-locking preventing the screw from backing out. The taper may be within the fixed structure of the plate, or within an insert placed into the plate.
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