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BI-DIRECTIONAL FIXATING TRANSVERTEBRAL BODY SCREWS AND POSTERIOR CERVICAL AND LUMBAR INTERARTICULATING JOINT CALIBRATED STAPLING DEVICES FOR SPINAL FUSION

  • US 20080033440A1
  • Filed: 08/21/2007
  • Published: 02/07/2008
  • Est. Priority Date: 04/12/2005
  • Status: Active Grant
First Claim
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1. A self-drilling bone fusion screw apparatus, which comprises:

  • a first sliding box;

    a second sliding box, positioned relative to the first sliding box;

    a first screw member having a tapered end and a threaded body disposed within the first sliding box;

    a second screw member having a tapered end and a threaded body disposed within the second sliding box; and

    an adjuster for adjusting the height of the sliding boxes.

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