FIG. 1 is a perspective view of the rigid base portion of a surgical patient support cushion, showing my new design;

FIG. 2 is a front elevational view of the surgical patient support cushion with the rigid base attached;

FIG. 3 is a right side elevational view thereof, the left side elevational view being identical thereto;

FIG. 4 is a back elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a perspective view thereof.