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Interspinous process spacer

  • US 7,862,590 B2
  • Filed: 04/08/2005
  • Issued: 01/04/2011
  • Est. Priority Date: 04/08/2005
  • Status: Active Grant
First Claim
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1. An interspinous spacer comprising:

  • anchoring plates for securing the interspinous spacer to a vertebra;

    a superior arch and an inferior arch connecting the anchoring plates and forming a central opening in the interspinous spacer;

    a first saddle disposed on a superior side of the superior arch and centered along the superior arch to capture the spinous process of a superior vertebra;

    a second saddle disposed on an inferior side of the inferior arch and centered along the inferior arch to capture the spinous process of an inferior vertebra; and

    an aperture in each of the anchoring plates being sized to receive a pedicle screw for attaching the interspinous spacer to the pedicles of the vertebra, each of the apertures being laterally aligned with a central section of the central opening;

    the first saddle extends farther in a superior direction than a remainder of the superior arch.

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