US D615192 S1
The ornamental design for an injection device, as shown and described.
FIG. 1 is a perspective view of an injection device showing our new design.
FIG. 2 is a front view thereof.
FIG. 3 is a back view thereof.
FIG. 4 is a first side view thereof.
FIG. 5 is a second side view thereof.
FIG. 6 is a top view thereof; and,
FIG. 7 is a bottom view thereof.
The broken lines shown in the drawings illustrate environmental matter and form no part of the claimed design.