A biomedical apparatus for pumping blood of a human or an animal patient through a secondary blood circuit (10, 11, 12) is provided, comprising a blood pump (10), an inlet duct (11) and an outlet duct (12) for guiding blood of the patient to the blood pump (10) and back to the patient. The apparatus further comprises a measuring device (14) with at least one pressure sensor (40-46) for measuring pressure values in the patients circulatory system. A controller (13) is provided that comprises at least two different preset control algorithms for regulating the operating point of the blood pump (10) based on the measured pressure values. The controller (13) is configured to select one of these preset control algorithms for being applied in dependence on the position of the at least one pressure sensor (40-46) in the patients circulatory system.
