Dynamic cervical plate
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United States of America Patent
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Mar 5, 2013
Grant Date -
Mar 19, 2009
app pub date -
Sep 13, 2007
filing date -
Sep 13, 2007
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A dynamic subsidence plate is described having a first plate member and a second plate member in sliding engagement that may infinitely subside between a first and second assembled position. The plate includes a lock assembly associated with the first and second plate members. The lock assembly includes a ramp portion, an interference portion, and a bearing member situated between the ramp portion and the interference portion. The lock assembly of the plate is configured to allow movement of the first member with respect to the second member in a first direction in an infinite number of positions between a first assembled position and a second assembled position. Further, the lock assembly alternatively prevents movement of the first member with respect to the second member in an opposite second direction between the first and second assembled positions.
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