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Posterior lumbar interbody fusion expandable cage with lordosis and method of deploying the same

  • US 20060122701A1
  • Filed: 11/21/2005
  • Published: 06/08/2006
  • Est. Priority Date: 11/23/2004
  • Status: Abandoned Application
First Claim
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1. A spinal fusion cage comprising:

  • an upper half-cage;

    a lower half-cage; and

    a plunger with a cam, where the upper half-cage and lower half-cage have a first collapsed configuration which has a thin, flat, rectangular envelope and a second expanded configuration, the half-cages having at least one ramped surface on which the cam of the plunger rides, the cam bearing against the ramped surface and spreading the two half-cages apart.

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