Paragraph Number

63

In certain embodiments, the proximal wedge 114, distal wedge 116, proximal ramp 214 and/or distal ramp 222 are configured such that the upper endplate 110 move vertically uniformly relative to the lower endplate 112. Consequently, a ratio of the first height H1 to the second height H2 (See FIG. 1C, 1D) remains the substantially the same as the exemplary expandable intervertebral implant 100 transitions from a collapsed configuration to a partially expanded configuration or expanded configuration. In other words, where H1 is greater than H2 in a collapsed configuration, H1 continues to be greater than H2 in a partially expanded configuration or expanded configuration.

Added by DJM 2 2021