US2005043799A1PendingUtilityA1
Facet arthroplasty devices and methods
Est. expiryOct 22, 2019(expired)· nominal 20-yr term from priority
Inventors:Mark A. Reiley
A61F 2002/30873A61F 2002/30777A61F 2002/30387A61B 17/86A61F 2002/30537A61F 2002/30604A61F 2/4405A61F 2310/00976A61F 2220/0025A61F 2220/0041A61F 2310/00329A61F 2002/30433A61F 2310/0097A61F 2002/30329A61F 2310/00023A61F 2310/00029A61F 2310/00634A61F 2310/00604A61F 2002/4631A61F 2/28A61F 2310/00131A61F 2002/305A61F 2250/0004A61F 2002/449A61F 2310/00179A61B 17/1671A61F 2310/00017
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Claims
Abstract
Surgically installed prostheses replace either the caudal portion of a natural facet joint, the cephalad portion of a natural facet joint, or both. The prostheses are readily attached to the pedicles of a vertebral body and support at least one element that defines an artificial facet joint structure. The caudal facet joint structure is sized and located to articulate with the cephalad facet joint structure. Together, the prostheses form a total facet replacement system. The system is suitable for use in virtually all levels of the spine.
Claims
exact text as granted — not AI-modified1 . A facet joint prosthesis to replace, on a vertebral body, a cephalad portion of a natural facet joint, the prosthesis comprising a component sized to be fixed to the vertebral body and including an artificial facet joint structure adapted to replace the cephalad portion of the natural facet joint after removal of the cephalad portion of the natural facet joint from the vertebral body.
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