I claim the ornamental design for a hinged handheld acupressure device, as shown and described.
FIG. 1 is a front view of a hinged handheld acupressure device, showing my new design in closed position, with the rear view being a mirror image thereof;
FIG. 2 is a side view thereof, the opposite side view being a mirror image thereof;
FIG. 3 is a top view thereof;
FIG. 4 is a bottom view thereof; and,
FIG. 5 is another front view thereof, in open position.