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Collapsible and expandable interbody fusion device

  • US 6,409,766 B1
  • Filed: 08/09/2000
  • Issued: 06/25/2002
  • Est. Priority Date: 07/30/1998
  • Status: Expired due to Term
First Claim
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1. An interbody fusion cage comprising:

  • a) an upper body and a lower body;

    b) at least one articulated support connecting said upper body to said lower body;

    c) an interior region defined by said upper body, said lower body, and said at least one articulated support; and

    d) said at least one articulated support having an expanded position and a collapsed position, said at least one articulated support folding inward toward the interior region as said at least one articulated support goes from said expanded position to said collapsed position.

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