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Novel banana cage

  • US 20040127990A1
  • Filed: 12/31/2002
  • Published: 07/01/2004
  • Est. Priority Date: 12/31/2002
  • Status: Active Grant
First Claim
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1. An intervertebral fusion device comprising:

  • a) an anterior wall having a convex horizontal cross section, b) a posterior wall, c) first and second end walls between the anterior and posterior walls d) an upper bearing surface between the anterior and posterior walls having a posterior portion having at least one upper opening therethrough adapted to promote bony fusion, and e) a lower bearing surface between the anterior and posterior walls having a posterior portion having and at least one lower opening therethrough adapted to promote bony fusion, wherein the upper and lower openings are in communication to promote bony fusion through the device, wherein the anterior wall has a middle portion, lateral end portions, each having a maximum height, and the maximum height of the middle portion is greater than the maximum height of the lateral end portions, and wherein the posterior portion of each bearing surface is adapted to bear against the anterior half of the disc space.

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