Bone screw retention mechanism
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 23, 2013
Grant Date -
Jul 28, 2011
app pub date -
Jan 25, 2011
filing date -
Jan 26, 2010
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A bone stabilization system is provided having a plate with a top and bottom surface and a hole therethrough extending along a longitudinal axis. An annular groove in the top surface encircles the axis and defines outer facing sides of a plurality of spring members integral to the plate. A plurality of slots define sides of the spring members the inward facing side of the spring members form the upper portion of the hole, which includes a first spherical portion. A fastener with a spherical portion on the fastener head extends into the hole with the spring members urged apart to allow the head to pass but restraining removal until the resistance provide by the spring members is overcome.
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Cited Art Landscape
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