Posteriorly inserted artificial disc and an artificial facet joint
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United States of America Patent
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Oct 7, 2014
Issued Date -
N/A
app pub date -
Sep 11, 2007
filing date -
Oct 15, 2004
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Lumbar disc and facet joint replacement prosthesis are provided. The lumbar disc prosthesis includes first member having a vertebral disc contact surface and a recessed portion on an opposing surface thereof and a second member having a vertebral disc contact surface and a protruding portion on an opposing surface thereof. The protruding portion of the second member engages the recessed portion of the first member in use. The first and second members are provided with at least a middle section and two end sections. The recessed and protruding portions are provided in the middle section of the respective members and each end section has a narrowing taper. The facet joint prosthesis includes a first member for attachment to a first posterior lumbar disc and a second member for attachment to a second posterior lumbar disc. At least a part of the first member is telescopically mounted in at least a part of the second member.
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Family
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