Surgery – Instruments – Orthopedic instrumentation
Patent
1988-03-02
1989-12-19
Johnson, Richard J.
Surgery
Instruments
Orthopedic instrumentation
403235, 606 72, 606 73, A61F 504
Patent
active
048875961
ABSTRACT:
A pedicle screw for use in internal fixation of the spine comprising a shaft threaded at one end for insertion into a bone and, at the other end, having a yoke for receiving a rod, said yoke having a cusp adapted to bear against the rod and means for clamping the rod against the cusp, while permitting adjustment of the angle between said rod and said yoke.
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Three pages showing nine drawings of Spinal Fixation Assemblies.
Synthes Bulletin SIF-1-8/87, Date is 1987.
Johnson Richard J.
Sam Charles H.
Synthes (U.S.A.)
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