Control device (100), for controlling a blood flow QVAD (t) of a percutaneous insertable ventricular assist device, VAD, (50), the VAD (50) comprising a pump unit (52) and an actuation unit (51) to drive the pump unit that is configured to transport blood from a blood flow inlet (54) to a blood flow outlet (56), wherein the control device (100) is configured to make operating the VAD (50) in a selectable zero flow control mode, wherein a blood flow command signal QVAD setting (t) is selected, the control device (100) being configured to control the blood flow QVAD (t) during a predetermined period of zero flow control, in which the predetermined period of zero flow control is adjusted to last a fraction of a cardiac cycle of an assisted heart, or the predetermined period of zero flow control adjusts to last, p or at least one complete cardiac cycle or a predetermined number of consecutive complete cardiac cycles； and the control device (100) comprises a first controller (401) and a second controller (402), where the first controller (401) is configured to control the blood flow QVAD (t) by adjusting an nVAD rate command signal. setting (t) for the drive unit (51), and the second controller (402) is configured to control a drive speed nVAD (t) of the drive unit (51).Dispositivo de control (100), para controlar un flujo de sangre QVAD(t) de un dispositivo de asistencia ventricular, VAD, insertable percutáneo (50), comprendiendo el VAD (50) una unidad de bomba (52) y una unidad de accionamiento (51) para accionar la unidad de bomba que está configurada para transportar sangre desde una entrada de flujo de sangre (54) hacia una salida de flujo de sangre (56), en el que el dispositivo de control (100) está configurado para hacer funcionar el VAD (50) en un modo de control a flujo cero seleccionable, en el que se selecciona una señal de comando de flujo de sangre QVAD ajuste(t), estando el dispositivo de control (100) configurado para controlar el flujo de sangre QVAD(t)
