17/129,237

Paragraph Number

60

In certain embodiments, the expansion mechanism 160 can include a driver 162 (See Figure 5A). A driver 162 is a component of the expansion mechanism 160 configured to expand or contract the expansion mechanism 160 when the driver 162 is activated or de-activated. In one embodiment, the driver 162 is configured to expand the upper plate 110 and the lower plate 120 away from each other along a cephalad-caudal axis (See Figure 5A) by deforming the first lattice 130 and the second lattice 140. Further description of the driver is provided in relation to Figures 4A,5A.

Added by DJM 2 2021