Patent ID: 8105292

Claim:
A syringe system for administering lyophilized drugs, the syringe system comprising a needle guard, the needle guard comprising a shield; a body; one or more trigger fingers disposed on the shield wherein the one or more trigger fingers are configured to remain in a resting, latched position until the one or more trigger fingers are activated; and a spring, wherein the spring is configured to bias the shield from a first, retracted position to a second, extended position; a syringe removably coupled with the needle guard, the syringe including a port on a distal, administration end, a cylindrical barrel, and a plunger slidably coupled with the cylindrical barrel; and a clip removably coupled with the needle guard, wherein the clip permits movement of the plunger when the clip is coupled to the needle guard and comprises one or more extensions configured to interact with the shield and body of the needle guard to retain the shield in the first, retracted position when the one or more trigger fingers are activated; wherein the plunger further comprises a thumb pad, wherein the thumb pad is configured to contact the one or more trigger fingers when the plunger is advanced to a distal position.