Apparatus for bracing vertebrae

Details Apparatus for bracing vertebrae Apparatus for bracing vertebrae

1997-04-14

2000-07-18

Dvorak, Linda C. M.

Surgery

Instruments

Orthopedic instrumentation

606 72, 606 73, 623 17, A61B 1718, A61B 1756, A61F 500

Patent

active

060901101

ABSTRACT:
An apparatus for bracing a plurality of vertebrae of the human spine has at least two pedicle screws, each having an annular head with an opening therewithin and including a slot therewithin. Each slot extends into the corresponding opening and includes internal threaded portions. A securing screw to be screwed in each slot is provided. A relatively stiff threaded rod is also provided and is to be inserted into the opening in the head of each of the pedicle screws and to be secured by the securing screws. Adjusting nuts are screwed on the rod and at least one cooperates with each head.

REFERENCES:
patent: 4047524 (1977-09-01), Hall
patent: 4383438 (1983-05-01), Eaton
patent: 4854304 (1989-08-01), Zielke
patent: 4987892 (1991-01-01), Krag et al.
patent: 5042982 (1991-08-01), Harms et al.
patent: 5129388 (1992-07-01), Vignaud
patent: 5176680 (1993-01-01), Vignaud et al.
patent: 5207678 (1993-05-01), Harms et al.

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