Low wear artificial spinal disc
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United States of America Patent
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-
Oct 14, 1997
Grant Date -
N/A
app pub date -
Jun 7, 1995
filing date -
Jan 14, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An artificial spinal disc for surgical placement between adjacent vertebrae including a first component for attaching to a first vertebrae, the first component having a concave recess, with the concave contoured surface having a circumference of 360.degree.. A second component for attaching to a second vertebrae, the second component including a projection with a convex surface, the convex contoured surface having a circumference of 360.degree.. The corresponding contoured surfaces shaped to allow an unrestricted rotational and a flexion/extension bending motion between the first and second components relative to a patient's normal spinal axis when in a standing position with the spine in a straightened position.
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