The present invention relates to a device and a method, particularly suitable for temperature adjustment of a patient and/or suitable for fever treatment and/or normothermia and/or hypothermia. The device comprises at least one connection to a reservoir suitable to provide infusion fluid, at least one assembly controller for controlling the temperature and/or flow rate of the infusion fluid； at least one temperature controller adapted for cooling and/or heating the temperature of the infusion fluid so that the infusion fluid is delivered with a pre-set temperature； and/or at least one flow controller for controlling the flow of the infusion fluid. At least one or more of the assembly controller the temperature controller and/or the flow controller are provided in modular form and adapted to be electrically and/or electronically and/or fluidly connected to each other.
