Prosthetic disc for intervertebral insertion
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United States of America Patent
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Jun 4, 2013
Grant Date -
Jun 5, 2008
app pub date -
Feb 13, 2008
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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