Spinal implant
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United States of America Patent
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Dec 5, 2017
Issued Date -
N/A
app pub date -
Aug 2, 2016
filing date -
Aug 15, 2006
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Intervertebral disc prostheses and methods of use. An intervertebral disc prosthesis for installation in a spinal column may include a first intervertebral plate, a second intervertebral plate, and a removable insert core. The first intervertebral plate may engage one or both of the inferior vertebral endplate and the inferior ring apophysis of a superior vertebral body. The second intervertebral plate may engage one or both of the superior vertebral endplate and the superior ring apophysis of an inferior vertebral body. The removable insert core is located between and engages the intervertebral plates. A projection projects from one of the intervertebral plates toward the other intervertebral plate. The removable insert core at least partially surrounds the projection when installed. The removable insert core is removable from between the intervertebral plates and from around the projection while the intervertebral plates and projection remain installed.
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