Artificial intervertebral disc having an articulating joint
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United States of America Patent
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-
May 8, 2007
Grant Date -
Sep 1, 2005
app pub date -
Feb 11, 2005
filing date -
Feb 19, 2004
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An intervertebral device includes a first plate having an outer face and an inner face, and a second plate juxtaposed with the first plate, the second plate having an outer face, an inner face that opposes the first plate and a concavity that opposes the first plate. The device includes an elongated member extending from the first plate toward the second plate, the elongated member having a distal end with a spherical surface that is engageable with the concavity of the second plate for providing an articulating joint between the first and second plates. The device also includes a resilient member in contact with the elongated member for counteracting compressive loads on the plates, the resilient member being surrounded by the concavity of the second plate.
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