Prosthetic cage for spine
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United States of America Patent
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Aug 6, 2002
Grant Date -
Dec 6, 2001
app pub date -
Jan 5, 2001
filing date -
Jan 6, 2000
priority date (Note) -
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Abstract
A prosthetic cage for spine adapted to be implanted in an intervertebral disc space between two vertebral bodies in a spine and to accommodate fusion of the disc space, said cage being a tubular body with an internal aperture, an external surface of which having a plurality of wall apertures each perpendicular to the longitudinal axis thereof and communicating with the internal aperture, and dual convex screw threads extended therefrom, such that the cage of the present invention has an advantage that the stability of fixation between the cage and the vertebral body can be achieved by simple variation of its shape.
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