Prosthetic disc for intervertebral insertion
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United States of America Patent
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Jul 13, 2010
Grant Date -
Jan 27, 2005
app pub date -
May 26, 2004
filing date -
May 27, 2003
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A prosthetic disc for insertion between adjacent vertebrae includes a core having upper and lower curved surfaces, upper and lower plates, and peripheral restraining structure on at least one of the upper plate, the lower plate and the core. Each plate has an outer surface which engages a vertebra and an inner curved surface which slides over the curved surface of the core. The peripheral restraining structure serves to hold the core against a curved surface of at least one of the plates during sliding movement of the plates over the core.
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