Anterior dorso-lumbar spinal osteosynthesis instrumentation for

Details Anterior dorso-lumbar spinal osteosynthesis instrumentation for Anterior dorso-lumbar spinal osteosynthesis instrumentation for

1994-02-15

1996-01-30

Graysay, Tamara L.

Surgery

Instruments

Orthopedic instrumentation

606 71, A61B 1770, A61B 1780

Patent

active

054877431

ABSTRACT:
The instrumentation comprises a pair of vertebral implants (1) provided with screws (4) for anchorage to two corresponding vertebrae located on each side of a damaged vertebra, and a plate (3) having two end portions (3a) for connection to the two implants, and equipped with serration (6, 15) for fixing it to the implants. The end portions (3a) of the plate have a rounded periphery and the instrumentation comprises fixing screws (50) having heads (51) which are rounded so that their surface is flush with the surface of the plate when they are anchored in the apertures of the implant and the apertures of the end portion (3a) of the plate. This arrangement ensures that the ends of the plate (3) do not come into contact with the vertebral discs when the angular position of the plate (3) relative to the implants varies, and reduces the overall size of the instrumentation.

REFERENCES:
patent: 4794918 (1989-01-01), Wolter
patent: 5108395 (1992-04-01), Laurain
patent: 5127912 (1992-07-01), Ray et al.
Vitallium Surgical Appliances Catalog, Mar. 1948, p. 7.

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