Height-adjustable spinal implant and operating instrument for the implant
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United States of America Patent
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-
Mar 22, 2011
Grant Date -
Oct 26, 2006
app pub date -
Jun 12, 2006
filing date -
Dec 11, 2003
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A height-adjustable implant for insertion between vertebrae, includes first and second sleeve parts which are rotationally fixed in coaxial alignment and interconnected in an axially displaceable manner. The first sleeve part has an internal thread. A nut is positioned coaxially in an inner space surrounded by the sleeve parts and is fixed to the second sleeve part so that it can rotate but is axially fixed. The nut has an external thread which engages in the internal thread of the first sleeve part. A toothed ring extends coaxially with the central longitudinal axis of the sleeve parts and is located on the nut. The second sleeve part has a radial access opening in the vicinity of the toothed ring.
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