A graphical user interface for a medical instruments for a Renal Replacement
Therapy
includes a pictogram representation of cthe fluid path of an extracorporeal blood
circuit that represents fluid lines, pumps and sensors. To assist the user in responding
to alarms and rectifying faults in the system the source of a potential trouble
is animated. The location of a trouble spot is easily identified by flashing of
the corresponding element of the pictogram, change of color or thickness of a corresponding line.