Syringe pump, and related method and system

A syringe pump for administering an agent to a patient, the syringe pump comprising:

• a housing;
• a lead screw;
• a linear cam;
• a half-nut assembly having first and second half-nut arms each having a first end and a second end, wherein the first ends of the first and second half-nut arms are configured to engage with the lead screw, the first and second half-nut arms are pivotally coupled together, the second ends of the first and second half-nut arms are configured to engage with the linear cam such that actuation of the linear cam toward the half-nut assembly causes the second ends of the first and second half-nut arms to pivotally approach each other, and the first ends of the first and second half-nut arms each includes threads configured to engage the lead screw when the second ends of the first and second half-nut arms approach each other caused by actuation of the linear cam;
• a plunger head assembly coupled to said half-nut assembly and operative to drive a plunger of a syringe into a barrel of said syringe;
• a first plunger flange clamp jaw;
• and
• a second plunger flange clamp jaw,
• wherein the first and second plunger flange clamp jaws are configured to be actuated from a first position to a second position.