FIG. 1 is a front elevational view of a drug infusion device with a protective cap showing my new design with the cap closed;

FIG. 2 is a front elevational view thereof with the cap opened;

FIG. 3 is a perspective view of the top, front and left side thereof with the cap opened;

FIG. 4 is a left elevational view thereof with the cap closed;

FIG. 5 is a left elevational view thereof with the cap opened;

FIG. 6 is a top elevational view thereof with the cap closed;

FIG. 7 is a top elevational view thereof with the cap opened;

FIG. 8 is a bottom elevational view thereof with the cap closed;

FIG. 9 is a bottom elevational view thereof with the cap opened;

FIG. 10 is a rear elevational view thereof with the cap closed; and,

FIG. 11 is a rear elevational view thereof with the cap opened.

The right elevation is identical to the left elevation.