Ratcheting bone screw
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 1, 1992
Issued Date -
N/A
app pub date -
Dec 2, 1991
filing date -
Aug 26, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A two piece bone screw having a separate head and shaft adapted for slidable engagement relative to one another. The head and shaft include a plurality of teeth which mutually engage to permit the head to shift relative to the shaft in only one direction. Therefore, under load, the head is shifted downwardly along the shaft to shorten the length of the screw in a ratcheting manner.
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Family
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Cited Art Landscape
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