Spinal fixation system and method
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United States of America Patent
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N/A
Issued Date -
Apr 20, 2006
app pub date -
Sep 30, 2004
filing date -
Sep 30, 2004
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A pedicle screw includes a cradle carrying a stabilization rod and a side entry channel for placing the rod into the cradle. A protuberance extends into the channel for providing an initial stop for the stabilization rod when being directed into the channel and is dimensioned for providing an audible sound through a snap fit of the stabilization rod in response to a biasing against the protuberance during a passing of the rod into the channel. An articulating ahead includes an insert carried within a cavity for making frictional contact with the stabilization rod and with the shank such that biasing a set screw against the rod results in a biasing of the rod against the insert and thus with the shank. Increasing the biasing by the setscrew against the rod results in a locking of the head with the shaft and thus a fixation of the stabilization rod.
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