Occipito-cervical osteosynthesis instrumentation

Details Occipito-cervical osteosynthesis instrumentation Occipito-cervical osteosynthesis instrumentation

1994-02-18

1996-04-16

Pellegrino, Stephen C.

Surgery

Instruments

Orthopedic instrumentation

606 60, 606 69, A61B 1770, A61B 1768, A61B 1780

Patent

active

055077455

ABSTRACT:
The instrumentation comprises two separate similar parts, namely a right part (1) and a left part (2), each formed by a cervical rod (3) having asperities and an elongate occipital plate (5) forming one piece with the rod and extending it toward the occiput (6) in the position of use, and adjustable means for anchoring the rod to the vertebrae and the plate to the occiput. Each part is so preangulated and shaped as to be adapted to the anatomy of the occipito-cervical connection. Each rod (3) has two rectilinear sections making therebetween an angle of between about 70.degree. and 90.degree., one of the sections being connected to the occipital plate (5), which is bent so as to correspond to the curvature of the occipital shell. The invention permits conveniently adapting the distance between the rods (3) to the anatomy of the patient and reduces the overall size of the instrumentation, which enables projections under the skin of the occiput to be considerably reduced.

REFERENCES:
patent: 4815453 (1989-03-01), Cotrel
patent: 4887595 (1989-12-01), Heinig et al.
patent: 5127912 (1992-07-01), Ray et al.
patent: 5360429 (1994-11-01), Jeanson et al.

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