Variable angle connection assembly for a spinal implant system
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United States of America Patent
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-
Jun 11, 2002
Issued Date -
N/A
app pub date -
Mar 28, 2000
filing date -
Apr 21, 1999
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A spinal implant assembly includes a connection assembly, an elongated spinal implant, and a bone fastener, such as a bone screw, engaged within a vertebra. A connection assembly is a one-piece body having a spinal implant opening perpendicular to and overlapping with a bone fastener opening. The bone fastener opening includes a wall having an engaging surface that can form interlocking engagement with the stem of the bone fastener placed at a desired angular and height. A set screw is used as means to urge the elongated spinal implant to press against the bone fastener and simultaneously urge the bone fastener to press against the engaging surface. The stem of the bone screw includes an interface element in the form of one or more ribs that can form interlocking engagement with the engaging surface.
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