Polyaxial pedicle screw having a rotating locking element
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United States of America Patent
Stats
-
May 25, 2010
Grant Date -
Jun 2, 2005
app pub date -
Dec 13, 2004
filing date -
Feb 15, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A screw and coupling element assembly for use with an orthopedic rod implantation apparatus includes a screw with a head and a shaft extending from the head, a coupling element with a seat within which the head is seatable such that the shaft protrudes from the coupling element, and a locking element mateable with the coupling element and when mated is selectively movable through a plurality of positions including unlocked and locked positions. When in the unlocked position, the locking element presents a rod-receiving channel and the head is movable in the seat such that the shaft is directable in a plurality of angles relative to the coupling element. When in the locked position, a rod disposed within the rod-receiving channel is fixed relative to the coupling element and the head is immovable in the seat such that the shaft is fixed at an angle relative to the coupling element.
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