Patent ID: 7566320

Claim:
An injector system for use in magnetic resonance imaging procedures comprising: an electrically powered injection device; a main console, including at least one first cylinder assembly that is driven by the electrically powered injection device, the first cylinder assembly having a first plunger adapted for reciprocating motion within the first cylinder assembly, the first plunger dividing the first cylinder assembly into a proximal sub-chamber and a distal sub-chamber within the first cylinder assembly; a hand held control in communication with said main console, said hand held control actuating the electrically powered injection device; and at least one second cylinder assembly in fluid communication with said first cylinder assembly, the second cylinder assembly having a second plunger adapted for reciprocating motion within the second cylinder assembly, the second plunger dividing the second cylinder assembly into a proximal sub-chamber and a distal sub-chamber within the second cylinder assembly, said first and second cylinder assemblies in fluid communication forming a closed-loop system, the closed-loop system being formed by coupling a first tubing set from the distal sub-chamber of the first cylinder assembly to the proximal sub-chamber of the second cylinder assembly, and by coupling a second tubing set from the proximal sub-chamber of the first cylinder assembly to the distal sub-chamber of the second cylinder assembly; and at least one syringe assembly having a third plunger in communication with the second plunger of said second cylinder assembly, wherein said main console, said first cylinder assembly, and said hand held control are in a non-sterile control room and said second cylinder assembly and said syringe assembly are in an imaging room, and wherein said at least one syringe assembly injects fluid when said hand held control actuates said electrically powered injection device to drive said at least one first cylinder assembly and said at least one second cylinder assembly.