FIG. 1 is a front, top and right side perspective view of an operating unit of treatment tool for endoscope, showing my new design;
FIG. 2 is a rear, bottom and left side perspective view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a rear view thereof;
FIG. 5 is a top view thereof;
FIG. 6 is a bottom view thereof;
FIG. 7 is a left side view thereof;
FIG. 8 is a right side view thereof;
FIG. 9 is a cross sectional view thereof, taken along the line 9-9 in FIG. 3; and,
FIG. 10 is a cross sectional view thereof, taken along the line 10-10 in FIG. 3.
The broken lines shown represent unclaimed subject matter and form no part of the claimed design.