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Polymer filled spinal fusion cage

  • US 6,332,894 B1
  • Filed: 03/07/2000
  • Issued: 12/25/2001
  • Est. Priority Date: 03/07/2000
  • Status: Expired due to Term
First Claim
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1. A method of fusing adjacent vertebrae in a spine, comprising the steps of:

  • forming an access hole in an annulus of a disc between the adjacent vertebrae;

    removing the nucleus within the disc to form a cavity surrounded by said annulus;

    placing a generally annular bag within said cavity;

    filling said bag with a polymer;

    injecting bone particles into a portion of said cavity surrounded by said annular bag; and

    hardening said polymer.

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