Multistage spinal fixation locking mechanism
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United States of America Patent
Stats
-
Oct 12, 2010
Grant Date -
Nov 23, 2006
app pub date -
May 4, 2005
filing date -
May 4, 2005
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The present invention relates to a locking mechanism and method of locking the relative positions of a fixation device like a bone screw and of a stabilization device like a rod. The locking mechanism includes a seat, a washer and a cap. The seat includes a bottom portion configured to receive the fixation device such that a socket of the bottom portion engages part of the fixation device and prevents the fixation device from passing entirely therethrough. The seat further includes a side portion configured to receive the stabilization device, a washer and a cap. When the washer and cap are fully engaged with the seat, the fixation device may be locked independent of the stabilization device. The locking mechanism may also include a locking element for locking the stabilization device.
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