Bone screw
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United States of America Patent
Stats
-
Aug 22, 1995
Grant Date -
N/A
app pub date -
Feb 18, 1994
filing date -
Mar 10, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A bone screw comprises a receiver member (5) and a screw member (1) having a threaded portion (2) and a head (3) having a spherical segment-shaped portion. The receiver member (5) comprises an internal thread (10) for allowing a relative adjustment of receiver member and screw member and the connection of the receiver member with a round rod. A pressure means (12) acts onto the head (3) and the rod (16) is placed on top of the pressure means. The arrangement is locked by means of a rod locking nut (13) and a lock nut (14) is screwed onto an external thread (11).
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