Taper-locked adjustable connector
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United States of America Patent
Stats
-
Feb 18, 2003
Grant Date -
N/A
app pub date -
Oct 23, 2000
filing date -
Oct 23, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A connection assembly between a spinal implant rod and a vertebral anchor. The assembly has a longitudinal member, a housing, a rod interface washer, and a compression member. The longitudinal member has an aperture at one end and a wedge at the other. The housing has a passageway to accept the shank of a bone screw and a bore to accept the wedge. The bore is open to the passageway so that when the wedge is pulled from the bore it pushes against the shank of the bone screw, trapping the bone screw between the wedge and the sidewalls of the passageway. Threading a setscrew into the aperture presses a spinal rod against the washer, presses the washer against the housing, and pulls the wedge against the shank of the bone screw. Further tightening of the setscrew then locks the bone screw and rod together.
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