Device for measuring the angle of movement of two vertebrae
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United States of America Patent
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Jul 19, 1994
Issued Date -
N/A
app pub date -
May 5, 1993
filing date -
Sep 24, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A device for measuring angles of freedom of adjacent vertebrae which includes two reference elements associated with each vertebra respectively. Indicators are associated with the two reference elements for measuring the angle of freedom of movement of the vertebrae in torsion in a plane perpendicular to the longitudinal axis of the vertebrae and for measuring the angle of freedom of the vertebrae in lateral inflexion in a plane perpendicular to that of the spinous processes as a function of a given position of flexion-extension of the vertebrae in the plane containing the spinous processes.
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