Patent ID: 7753958
Filing Date: 2010-07-13
Classification: A61B,A61F

Abstract:
1. An intervertebral implant for a human spine, comprising: an upper body comprising an inferior surface and a superior 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 inferior surface of the upper body and the superior surface of the lower body, wherein the insert is configured to rotate about an axis of rotation, wherein the insert comprises one or more projections comprising a substantially planar surface that is substantially parallel to the axis of rotation and wherein the substantially planar surface extends from an exterior surface of the insert in a radial direction with respect to the axis of rotation of the insert; and an advancing element configured such that advancement of the advancing element causes at least a portion of the advancing element to engage the substantially flat planar surface of at least one of the one or more projections to at least partially rotate the insert to increase a separation distance between the upper body and the lower body, thereby increasing a height of the intervertebral implant after insertion of the intervertebral implant between the first vertebra and the second vertebra of the human spine.