We claim the ornamental design for a tracheostomy tube, as shown and described.
FIG. 1 is a perspective view of the tracheostomy tube of the present invention;
FIG. 2 is a bottom view of the tracheostomy tube of FIG. 1;
FIG. 3 is a top view of the tracheostomy tube of FIG. 1 shown in an alternate environment;
FIG. 4 is a right side view of the tracheostomy tube of FIG. 1 shown in an alternate environment;
FIG. 5 is a left side view of the tracheostomy tube of FIG. 1 shown in an alternate environment;
FIG. 6 is a front view of the tracheostomy tube of FIG. 1 shown in an alternate environment;
FIG. 7 is a rear view of the tracheostomy tube of FIG. 1 shown in an alternate environment;
FIG. 8 is a perspective view of an alternative embodiment of the tracheostomy tube of the present invention;
FIG. 9 is a bottom view of the tracheostomy tube of FIG. 8;
FIG. 10 is a top view of the tracheostomy tube of FIG. 8 shown in an alternate environment;
FIG. 11 is a right side view of the tracheostomy tube of FIG. 8 shown in an alternate environment;
FIG. 12 is a left side view of the tracheostomy tube of FIG. 8 shown in an alternate environment;
FIG. 13 is a front view of the tracheostomy tube of FIG. 8 shown in an alternate environment; and,
FIG. 14 is a rear view of the tracheostomy tube of FIG. 8 shown in an alternate environment.
The broken line showing immediately adjacent the shaded areas is included for the purpose of illustrating the bounds of the claimed design, while all other broken lines are directed to environmental structures. The broken line showing and all within form no part of the claimed design.