591423 An intracardiac device (31) for restoring the functional elasticity of the cardiac structures, in particular for the treatment of cardiomyopathies and or valvulopathies, by storing energy from the cardiac structures and ceding energy to the cardiac structures during the cardiac cycle, has an elongated shape, is at least partially wound in coils (13) and is attachable to a cardiac structure. The coils are selected in material, number and dimension so as to allow an elastic elongation of the intracardiac device higher than 10% of the rest length of the intracardiac device and are exposed, in use, to the blood flow. The device also includes at least one member (36) directly attachable to the cardiac structure and attached to the elongated member (12). The at least one member has an elongated shape and is arranged alongside and along the elongated member.
