BONE ANCHORS
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United States of America
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Issued Date -
Apr 3, 2025
app pub date -
Dec 13, 2024
filing date -
Dec 13, 2024
priority date (Note) -
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status (Latency Note)
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Abstract
A cannulated bone anchor assembly includes a bone anchor, a receiver member for receiving a spinal fixation element to be coupled to the bone anchor, and a closure mechanism to fix the spinal fixation element with respect to the receiver member. The bone anchor includes a distal shaft having a first threaded section distal to a proximal head, a second threaded section distal to and adjacent the first threaded section, and a third threaded section distal to and adjacent the second threaded section. The first threaded section having a constant major and minor diameter. The second threaded section having a tapering major and minor diameter. The third threaded section having a tapering major diameter and a constant minor diameter.
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