Locking cap assembly for spinal fixation instrumentation
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United States of America Patent
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-
Oct 24, 2006
Issued Date -
N/A
app pub date -
Jun 25, 2003
filing date -
Sep 22, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A spinal anchor assembly for securing a fixation element includes an anchor element and a twist-in cap. The anchor element is configured for attachment to a bone, typically by comprising a mono- or polyaxial screw or hook, and includes a proximal portion having an open slot for receiving the fixation element and having radially inwardly protruding flange segments. The twist-in cap is received in and closes the open slot. The proximal portion of the anchor and the cap are adapted to twist-lock together by a partial rotation of the cap from an open position to a closed position to cover the slot so as to capture the fixation element and to lock the cap in the closed position.
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Family
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