Paragraph Number

64

By way of example, angles between the ramps 214, 222 and wedges 114, 116 can be selected such that the upper endplate 110 moves uniformly vertically relative to the lower endplate 112. In another embodiment, the the ramps 214, 222, wedges 114, 116, and/or angles between them are configured such that a ratio of the first height H1 to the second height H2 (See FIG. 1C, 1D) changes as the exemplary expandable intervertebral implant 100 transitions from a collapsed configuration to a partially expanded configuration or expanded configuration. For example, in an expanded configuration H1 and H2 can be substantially the same.

Added by DJM 2 2021