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; and a wired link between the management unit and the rotative impeller.