Expandable intervertebral fusion implant and applicator
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United States of America Patent
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Feb 6, 2001
Grant Date -
N/A
app pub date -
Dec 16, 1998
filing date -
Dec 16, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An expandable intervertebral fusion implant includes a pair of semi-cylindrical shells having mating surfaces which resist shifting when the parts are assembled. The cylinder thus formed is placed on a special installation tool, which is first used to place the cylinder in the intervertebral space. Thereafter, the tool is actuated to spread the shells, and a spacer of appropriate size and taper is slid over the tool shaft, and in between the shells to maintain their spacing after the tool is removed. Having spacers of different height and taper allow the surgeon to adapt the implant to various situations.
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