The present invention is directed to an adjustment device and method for adjusting the volume of one or more medical infusion fluids. This device can comprise any of at least one first determining unit adapted to measure and/or determine the volume of the medical infusion fluid flowing through a delivery duct and adapted to provide a respective first signal, at least one second determining unit adapted to measure and/or determine the volume and/or weight of at least one released body fluid and/or a physiological parameter and further adapted to provide a respective second signal and at least one volume controlling unit adapted to control the flow of the medical infusion fluid through the delivery duct on the basis of the first and the second signals.
