Patent ID: 7753885

Claim:
A method for automatically refilling a syringe for a powered angiographic injector arrangement, said method comprising: providing a fluid reservoir in communication with a chamber of said syringe; completing a first injection via the powered angiographic injector arrangement; wherein the powered angiographic injector arrangement: senses a volume of fluid remaining in the chamber of the syringe following the first injection; receives a user input associated with a subsequent injection, the user input comprising a safety parameter for the subsequent injection selected from the group consisting of maximum injection volume, maximum flow rate, maximum pressure, and rise time; determines a preset volume of fluid necessary for the subsequent injection based on the user input; compares said volume remaining in said chamber with said preset volume of fluid; and either (a) advances a plunger within said chamber of said syringe to perform the subsequent injection if said preset volume of fluid is equal to or less than the volume of fluid remaining in said chamber, or (b) automatically retracts a plunger to a predetermined position within said chamber of said syringe to draw fluid from the fluid reservoir into the chamber is said preset volume of fluid is greater than the volume of fluid remaining in said chamber.