US D276649 S
FIG. 1 is a side elevation of a surgical cannula showing our new design;
FIG. 2 is an elevation as seen from the opposite side of FIG. 1;
FIG. 3 is a front elevation thereof;
FIG. 4 is a rear elevation thereof;
FIG. 5 is a top plan view thereof; and
FIG. 6 is a bottom plan view thereof.