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Spinal cage having deployable member

  • US 8,366,774 B1
  • Filed: 02/10/2009
  • Issued: 02/05/2013
  • Est. Priority Date: 07/02/2007
  • Status: Active Grant
First Claim
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1. A spinal cage assembly, comprising:

  • a spinal cage comprising a support structure suitable to maintain two vertebrae separate from each other and having an interior having at least some empty space;

    a spin-plate engaged with said spinal cage and rotatable with respect to said spinal cage, wherein said spin-plate comprises a blade and a shaft attached to or integral with said blade, said shaft engaging with said spinal cage at a first end of said shaft and at a second end of said shaft opposed to said first end of said shaft;

    wherein said spin-plate comprises a first structure, and said spinal cage comprises a second structure, extending into said interior, said second structure being capable of interaction with said first structure;

    wherein at least a first rotational position of said spin-plate relative to said spinal cage, said first structure and said second structure are positioned relative to one another such that a first amount of torque, resulting from said interaction of said first structure and said second structure, is required to rotate said spin-plate relative to said spinal cage;

    wherein at least a second rotational position of said spin-plate relative to said spinal cage, said first structure and said second structure are positioned relative to one another such that a second amount of torque, resulting from said interaction of said first structure and said second structure, is required to rotate said spin-plate relative to said spinal cage; and

    wherein said first amount of torque is different from said second amount of torque.

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