The ornamental design for a device for treatingtissue, as shown and described.
FIG. 1 is a perspective view of an open configuration of a device for treating tissue;
FIG. 2 is a front view thereof;
FIG. 3 is a first side view thereof;
FIG. 4 is a top view thereof;
FIG. 5 is a rear view of thereof;
FIG. 6 is a second side view thereof;
FIG. 7 is a bottom view thereof;
FIG. 8 is a perspective view of a closed configuration of the device for treating tissue
FIG. 9 is a front view thereof;
FIG. 10 is a rear view thereof;
FIG. 11 is a first side view thereof;
FIG. 12 is a second side view thereof;
FIG. 13 is a top view thereof; and,
FIG. 14 is a bottom view thereof.
In the drawings, the broken lines are shown for the purpose of illustrating a portion of the device for treating tissue and form no part of the claimed design.