We claim the ornamental design for a prosthetic hand, as shown and described.
FIG. 1 is a top perspective view of a prosthetic hand showing the new design;
FIG. 2 is a front elevation view of the prosthetic hand of FIG. 1;
FIG. 3 is a rear elevation view of the prosthetic hand of FIG. 1;
FIG. 4 is a left side elevation view of the prosthetic hand of FIG. 1;
FIG. 5 is a right side elevation view of the prosthetic hand of FIG. 1;
FIG. 6 is a top plan view of the prosthetic hand of FIG. 1; and,
FIG. 7 is a bottom plan view of the prosthetic hand of FIG. 1.
The broken lines immediately adjacent shaded areas represent bounds of the claimed design, while all other broken lines are directed to environmental or unclaimed features. None of the illustrated broken lines form any part of the claimed design.