We claim the ornamental design for a safety device for a syringe, as shown and described.
FIG. 1 is a perspective view at an angle from the rear showing a safety device for a syringe comprising a safety sleeve, a mounting member and a protective cap mounted on the safety sleeve.
FIG. 2 is a perspective view at an angle from the rear, rotated by 90° around its longitudinal axis showing the safety device for a syringe comprising a safety sleeve, a mounting member and a protective cap mounted on the safety sleeve.
FIG. 3 is a side view showing the safety device for a syringe comprising a safety sleeve, a mounting member and a protective cap mounted on the safety sleeve.
FIG. 4 is a side view rotated by 90° around its longitudinal axis showing the safety device for a syringe comprising a safety sleeve, a mounting member and a protective cap mounted on the safety sleeve; and,
FIG. 5 is a front view showing the safety device for a syringe comprising a safety sleeve, a mounting member and a protective cap mounted on the safety sleeve.
The broken line showing of parts of the drawings is included for the purpose of illustrating use and environment and forms no part of the claimed design.