Bottom-loading bone anchor assemblies and methods
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United States of America Patent
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Oct 3, 2017
Issued Date -
N/A
app pub date -
Mar 14, 2013
filing date -
Mar 14, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Bone anchor assemblies and methods are provided having a multi-component bone anchor that is configured to allow the shank of the bone anchor to be bottom loaded into a receiver member. In one embodiment, a bone anchor assembly is provided having a shank with a distal threaded portion and a proximal head portion, a ball having a spherical exterior surface and a central lumen sized to receive the head portion of the shank, and a clip configured to be engaged between the head portion and the ball such that the clip is effective to lock the ball in engagement with the shank.
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