The invention describes a new method of, manually assembling an unattached hypodermic syringe shield, to cover a needle, with a modified shield. This safer technique protects the health care worker from “needle sticks”, by removing hands and fingers from “harms way”, during the re-shielding process, at a low cost to the practitioner. An additional preferred embodiment combines the shield with a push button piercing device, that damages the syringe, at the point of use, and pins the working components together, producing a “locked”, and punctured unit, difficult to repair by addicts.
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