Safety syringes have a safety mechanism built into the syringe. The needle on a safety syringe can be detachable or permanently attached. On some models, a sheath is placed over the needle or the needle retracts into the barrel following injection to protect healthcare workers and others from accidental needle stick injuries. An additional option is a secondary device, such as Oak Ridge Products needle capper that allows the user, with one hand to apply a cover over the contaminated needle. More