The ornamental design for a hot and coldpack for medical purposes, as shown and described.
FIG. 1 is a front perspective view of a hot and cold pack for medical purposes in accordance with the invention with attachment straps shown in broken lines;
FIG. 2 is a back view of FIG. 1 with attachment straps shown in broken lines;
FIG. 3 is a front view of FIG. 1 with attachment straps shown in broken lines;
FIG. 4 is a right view of FIG. 1 with attachment straps shown in broken lines;
FIG. 5 is a left view of FIG. 1 with attachment straps shown in broken lines;
FIG. 6 is a top view of FIG. 1 with attachment straps shown in broken lines; and,
FIG. 7 is a bottom view of FIG. 1 with attachment straps shown in broken lines.
The broken lines are for environmental purposes only and form no part of the claimed design.