Nerve stimulator

The design is the visual features of the NERVE STIMULATOR shown in solid lines in the drawings, whether those features are of shape, configuration, ornament, or pattern, or are a combination of any of these features. Shading is used in the drawings to better illustrate the design. The portions of the article shown in stippled lines do not form part of the design.Drawings of the design are included.FIG. 1 is a perspective view of a NERVE STIMULATOR;FIG. 2 is a front view thereof;FIG. 3 is a right side view thereof;FIG. 4 is a rear side view thereof;FIG. 5 is a left side view thereof;FIG. 6 is a top view thereof; andFIG. 7 is a bottom side view thereof.