Vertebral disc annular fibrosis tensioning and lengthening...

Details Vertebral disc annular fibrosis tensioning and lengthening... Vertebral disc annular fibrosis tensioning and lengthening...

2006-12-28

2010-02-23

Robert, Eduardo C (Department: 3733)

Surgery

Instruments

Orthopedic instrumentation

C606S251000, C606S253000, C606S246000

Reexamination Certificate

active

07666211

ABSTRACT:
A vertebral disc annular fibrosis tensioning and lengthening device that restores the loss of disc height as a result of disc degeneration and other factors. The vertebral disc annular fibrosis tensioning and lengthening device includes pedicle screws having heads with cup-shaped cavities. The pedicle screws are threaded into the vertebral bodies of adjacent vertebrae through the pedicles so that open parts of the heads of the pedicle screws face each other. A spring is inserted into the cup-shaped cavities in compression so that the spring bias forces the pedicle screws apart, thus increasing the height of the disc space.

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www.zimmer.com, Zimmer Spine, “Dynesys® Dynamic Stabilization System”, 4 pgs.

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