Surgery – Instruments – Orthopedic instrumentation
Patent
1989-02-28
1990-08-07
Hafer, Robert A.
Surgery
Instruments
Orthopedic instrumentation
606 72, 606 57, 623 17, A61F 200
Patent
active
049464582
ABSTRACT:
A pedicle screw (1) for use in the monosegmental or multisegmental stabilization of the spinal column comprises a thread and a receiver portion. In order to facilitate the mounting and to reduce the stress of the screw and the threaded rods for connection therewith, a threaded shaft part (2) and a receiver part (3) are mutually connected in an articulated manner.
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patent: 4653481 (1987-03-01), Howland et al.
Biedermann Lutz
Harms Jurgen
Brown Donald
Cofsky Lynda M.
Hafer Robert A.
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