The ornamental design for a safetysyringe, as shown and described.
FIG. 1 is top plan view of a safety syringe showing the new design;
FIG. 2 is a left side elevation view thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is a front elevation view thereof;
FIG. 5 is a top, front, and left side perspective view thereof;
FIG. 6 is a bottom, rear, and left side perspective view thereof; and,
FIG. 7 is a top, front, and left side perspective view thereof in an alternate configuration wherein a front portion of the device is retracted to the rear.