Cannula

Figure 1 . 1 is a perspective view;

Figure 1 . 2 is a top view thereof;

Figure 1 . 3 is a bottom view thereof;

Figure 1 . 4 is a front view thereof;

Figure 1 . 5 is a rear view thereof;

Figure 1 . 6 is a right side view thereof; and

Figure 1 . 7 is a left side view thereof.

The features shown in broken lines are for the purpose of illustrating portions of the cannula that form no part of the claimed design.