A levelling device for positioning of a medical device in relation to a patient is disclosed. The levelling device comprises a tube having fluid communication between a first end and a second end, wherein the first end is configured for connection to the medical device and the second end is configured for connection to the patient. The levelling device comprises a control unit connected to a sensor, wherein the sensor is configured to transmit sensor data to the control unit which is indicative of a pressure difference between the first and second end of the tube, and an actuator connected to the control unit, wherein the actuator is configured to connect to the medical device and to arrange a position of the medical device in relation to the patient in dependence on said pressure difference.
