The ornamental design for a decorative medical castsleeve, as shown and described.
FIG. 1 is a top view of a decorative medical cast sleeve.
FIG. 2 is a bottom view of a decorative medical cast sleeve.
FIG. 3 is a left side view of a decorative medical cast sleeve.
FIG. 4 is a right side view of a decorative medical cast sleeve.
FIG. 5 is a front view of a decorative medical cast sleeve.
FIG. 6 is a rear view of a decorative medical cast sleeve.
FIG. 7 is a perspective view of a decorative medical cast sleeve showing the top, right side and rear.
FIG. 8 is a perspective view of a decorative medical cast sleeve applied to a left arm (shown in dashed lines) showing the top, right side and rear; and,
FIG. 9 is a perspective view of a decorative medical cast sleeve applied to a left arm (shown in dashed lines) showing the bottom, left side and rear.
The broken line showing of an arm in FIGS. 8 and 9 and of a design in FIGS. 1-2 and 7-9 are included for the purpose of illustrating environmental structure and form no part of the claimed design.