Angled washer polyaxial connection for dynamic spine prosthesis
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United States of America Patent
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Apr 22, 2014
Grant Date -
May 1, 2008
app pub date -
Aug 10, 2007
filing date -
Aug 11, 2006
priority date (Note) -
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Abstract
A dynamic spine prosthesis (such as a facet joint prosthesis having an articulation surface configured to articulate with a corresponding facet joint element) that has a fixation element with an elongated bone entry portion defining a longitudinal axis and a dynamic spine prosthesis component connected to the fixation element at a connection location by an adjustable connection. The adjustable connection has first and second washers each rotatably supported by the fixation element and each having an angled contact surface in a plane not perpendicular to the longitudinal axis of the fixation element, with the connection location being between the bone entry portion and the first and second washers.
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