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Posterior lumbar intervertebral stabilizer

  • US 20060200239A1
  • Filed: 07/07/2005
  • Published: 09/07/2006
  • Est. Priority Date: 03/03/2005
  • Status: Active Grant
First Claim
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1. A posterior intervertebral stabilizer, comprising:

  • a first stabilizing element having;

    (i) a first surface operable to engage an endplate of a first vertebral bone of a spine, and (ii) a second surface spaced apart from the first surface and operable to engage an endplate of an adjacent second vertebral bone of the spine;

    a second stabilizing element having;

    (i) a first surface operable to engage an endplate of the first vertebral bone of the spine, and (ii) a second surface spaced apart from the first surface and operable to engage an endplate of the adjacent second vertebral bone of the spine; and

    respective spring elements, each including helical coils, disposed between the respective first and second surfaces of the first and second stabilizing elements, each operable to provide a reactive force in response to compression loads from the first and second vertebral bones, wherein at least some diameters of respective turns of the respective helical coils differ.

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