In case of an acute disorder of the lung, for the patient every second counts. The artificial maintenance of gas exchange and blood circulation is state-of-the-art of science and technology in the stationary field during surgery and chronic diseases. However, there are no suitable systems for emergency rescue. Therefore, a system that suits the requirements of a modern emergency medical service in weight and compactness is developed. Two rotor bearing systems for blood pumps were tested for water and pork blood and compared by means of pump performance charts.