Patent ID: 7753882

Claim:
An IV infusion delivery apparatus capable of operating in an MRI environment, the apparatus comprising: a pump disposed to receive a liquid conduit and to transfer IV liquid through the liquid conduit from a liquid IV container source; an ultrasonic actuator constructed substantially of non-magnetic material which creates mechanical movement of the pump in response to applied multiphasic electrical signals to provide positive displacement of the IV liquid from the IV container source; and a controller, including a central processing unit and memory, that stores operating programs, the controller disposed within an electrically conductive shielding structure that is constructed of non-magnetic material for operation in an MRI environment, the controller communicating with the ultrasonic actuator to selectively energize the actuator to drive the pump, and thereby transfer liquid from the IV container source through the liquid conduit at a controllable volumetric rate, wherein the controller and the ultrasonic actuator are housed within an integrated housing unit.