FIG. 1 is a side elevational view of the medical chair back panel;

FIG. 2 is a rear view of the medical chair back panel shown in FIG. 1;

FIG. 3 is a top view of the medical chair back panel as shown in FIG. 1; and,

FIG. 4 is a bottom view of the medical chair back panel as shown in FIG. 1.

The elements shown in phantom lines are for environmental purposes and do not form part of the claimed design.