Expandable interbody fusion device

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United States of America Patent

PATENT NO 9675469
SERIAL NO

14939007

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Abstract

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An expandable interbody fusion device includes superior and inferior plates that are configured to receive a sequentially inserted stack of expansion members or wafers. The superior and inferior plates include features that at least initially interlock the two plates until the superior plate is dislodged by pressure from the growing wafer stack. The wafers include features on their top and bottom surfaces that interlock the wafers in multiple degrees of freedom so that the wafer stack is not disrupted when the fusion device is fully expanded. Each wafer also includes features that interlock with the inferior plate until the wafer id dislodged by sequential introduction of another wafer.

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Patent Owner(s)

  • SPINE WAVE, INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Landry, Michael Austin, US 26 1320
Wysocki, Steve Stratford, US 13 1536

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