A heart pump includes:a rotative impeller partly inserted into the systemic ventricle, this rotative impeller being equipped with: a membrane sutured to the outer wall of the heart in such a way as to secure the rotative impeller to the wall of the heart,a housing arranged inside the systemic ventricle in such a way as to draw up then discharge blood,a motor connected to the housing and arranged partly outside the systemic ventricle in such a way as to facilitate maintenance;an integrated management unit in the epigastric region including a power supply and a rotative impeller control unit; anda wired link between the management unit and the rotative impeller.