17/129,237

Paragraph Number

5

In one aspect, the opening may have internal threads about the longitudinal axis. In addition, the expansion mechanism can include a screw member that may include a shank having threads that engage the internal threads within the opening. In addition, the screw member can have a diameter selected such that rotation of the screw member about the longitudinal axis by activation of the driver separates the upper plate from the lower plate by deforming the first lattice and the second lattice.

Added by DJM 2 2021