Tibial insert reinforcement pin
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United States of America Patent
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-
Aug 19, 1997
Grant Date -
N/A
app pub date -
Dec 29, 1995
filing date -
Dec 29, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A knee prosthesis includes a femoral component, a patella insert, a tibial bearing insert, a tibial tray and a reinforcement pin. The reinforcement pin is constructed such that it includes a ribbed region comprised of one or more circumferentially oriented ribs. The diameter of the ribbed region of the pin exceeds that of the non-ribbed region of the pin. The reinforcement pin is adapted to seat within a bore formed in the tibial bearing insert in an interference fit. A distal portion of the pin protrudes from the inferior surface of the tibial bearing insert and is adapted to fit, in a clearance fit, within a bore formed in a superior surface of the tibial tray.
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