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Bone grafts

  • US 6,371,988 B1
  • Filed: 01/18/2000
  • Issued: 04/16/2002
  • Est. Priority Date: 10/23/1996
  • Status: Expired due to Term
First Claim
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1. A hollow spinal spacer for engagement between vertebrae, comprising:

  • an anterior wall having a convexly curved anterior surface and opposite ends;

    a posterior wall having a flat posterior surface and opposite ends;

    two lateral walls, each integrally connected between said opposite ends of said anterior and posterior walls to define a chamber; and

    said walls comprised of bone and further defining;

    a superior face defining a first opening, said opening in communication with said chamber, said superior face having a superior engaging surface; and

    an opposite inferior face defining a second opening, said second opening in communication with said chamber, said inferior face having an inferior engaging surface.

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