Locking pin plate assembly adapted for fracture fixation
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United States of America Patent
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-
Jan 19, 2016
Grant Date -
Sep 12, 2013
app pub date -
Sep 5, 2012
filing date -
Jul 31, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
A lockable pin plate assembly which has a pin plate adapted to be secured to stable bone and provided with pin holes for pins for pinning an unstable bone fragment. One or more pin holes are engageable by pins of an integral U-pin. The pins have stop surfaces thereon which are resiliently displaced when the pins are seated to automatically and self-lock the pin and the pin plate to oppose withdrawal and backing out of the pins from the pin plate. In a preferred embodiment, each pin of the U pin has a leading portion and a trailing portion, the leading portion being of smaller diameter to pass freely through an elliptical hole in the pin plate whereas the trailing portion is of larger size to become locked in the pin hole as it is advanced therein.
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