Patent ID: 8118870
Filing Date: 2012-02-21
Classification: A61B,A61F

Abstract:
1. An intervertebral implant for a human spine, comprising: an upper body comprising a superior surface and an inferior surface wherein the superior surface of the upper body is configured to engage a first vertebra of the human spine; a lower body comprising a superior surface and an inferior surface, wherein the inferior surface of the lower body is configured to engage a second vertebra of the human spine; an insert configured to be positioned between the superior surface of the lower body and the inferior surface of the upper body before insertion of the intervertebral implant between the first vertebra and the second vertebra of the human spine, wherein the insert comprises a recess, wherein the insert is configured such that translation or rotation of the insert increases a separation distance between the upper body and the lower body; and a spacer configured to be inserted between the lower body and the upper body to maintain at least a portion of the increased separation distance between the upper body and the lower body, wherein the spacer comprises: