Physiological Control for Mechanical Circulatory Devices

Aim of this clinical study is to compare our newly developed control algorithms for mechanical circulatory support devices based on physiological demand with the standard manual LVAD speed operation. Specifically it shall be demonstrated that: * Suction is properly detected by the pre-trained pump flow estimation algorithm * Suction events (due to changes in physiological demand) can be reduced by control algorithms compared to continuous speed * If suction is encountered, it can be detected and cleared * The pump reacts adequately to changes in patient demand due to physical activity * Physicians pump setpoints (of requested speed for a certain heartrate) can be achieved safely.