A method for providing animated feedback on an event state in a blood purification device comprises the steps of: detecting a pressed state of an active element on a graphical user interface of the device； triggering an event in the device in response to the detection of the pressed state of the active element； tracking the status of the triggered event, wherein said tracking includes detecting a plurality of states of the event, and wherein each detected event state is assigned a feedback representation variant at the active element； and setting the feedback representation variant at the active element as a user feedback indication in accordance with the detected event state.
