▎ 摘　　要

NOVELTY - The electrical stimulation device has an energy recuperator that is provided with several pairs of flexible supports, blades or discs which are fixed perpendicularly to a central axis (A) with a direction identical to the axis of symmetry of the device. The supports, blades or discs are diametrically opposed in pairs. The blades, supports or discs are rotatable to align the energy recovery device on the axis of the external mechanical stress. The alignment is obtained by passive rotation of the energy recovery device as a function of the external mechanical stress exerted on the device and is provided with an identical mass per pair of supports, blades or discs at the free end. USE - Electrical stimulation device such as electrical muscle or nerve stimulation device for stimulating target tissue such as non-cardiac muscle or nerve. ADVANTAGE - The electrical stimulation device enables a three-dimensional optimization of energy recovery by making the electromechanical transducer piezoelectric, more efficient and adaptable. The density of energy produced by using the volume of the energy harvesting device is increased in an optimized manner. The amount of energy recovered is increased, since the energy is not absorbed by the casing of the electrical stimulation device when portion of the mechanical stress is exerted on the device, thus the energy generation is optimized. The longevity of the electrical stimulation device is increased. The implanted device subjected to a given external magnetic field allows better alignment of the blades and optimizes the induction effect generating the current sought to supply the electrical stimulation device. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: an energy recovery device; and a method for operating electrical stimulation device for producing and recovering energy. DESCRIPTION OF DRAWING(S) - The drawing shows an isometric view of the energy recovery device. ACentral axis F1,F2Thin films L1First blade L2Second blade MOscillating mass