Intervertebral disc prosthesis and fitting tools
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United States of America Patent
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Feb 5, 2008
Issued Date -
N/A
app pub date -
May 3, 2002
filing date -
May 4, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An intervertebral disc prosthesis designed to be substituted for fibrocartilaginous discs ensures a connection between the vertebra of the vertebra column or the end of the latter. The prosthesis includes a pair of plates spaced from each other by a nucleus. The prosthesis has increased stability by providing the nucleus with a translation or rotation stop, or by inducing an angular correction between its plates contacting vertebra, or a combination of these characteristics. The stop includes parts external to the nucleus and contact surfaces perpendicular to their contact directions.
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