Bone fixation rod system

Details Bone fixation rod system Bone fixation rod system

2005-03-04

2008-03-18

Robert, Eduardo C. (Department: 3733)

Surgery

Instruments

Orthopedic instrumentation

Reexamination Certificate

active

07344537

ABSTRACT:
An anterior spinal fixation system comprises a plurality of mounting constructs to hold one or more spinal rods or spinal plate-type braces. Each mounting construct includes a bottom plate and a top plate assembly. The bottom plate is attached to the vertebral body with a plurality of anchors, one or more of which may be polyaxial. In one embodiment, the top plate assembly engages the bottom plate through a quick-connect feature that provides simple and secure locking as well as tactile feedback. When the top plate assembly is engaged with the bottom plate, it compresses the rods or braces against the head of the screws, locking the angle of any polyaxial bone screws. In another embodiment, the top plate assembly threadably engages the bottom plate. For additional strength and rigidity, cross-connectors may be used between each pair of mounting constructs when two or more spinal rods are used.

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