Implantable Brain-Computer Interface for Upper-Limb Recovery After Stroke

The clinical investigation will take place in three phases: * A pre-selection/selection phase to ensure that the patient (lesion, symptoms, ability of our tools to detect your movement intentions, etc.) is suitable for a six-month intensive rehabilitation program using Brain-Machine Interface. * A second phase, consisting of implementing the intensive rehabilitation program, first in the traditional manner, without the Brain-Machine Interface (2 to 5 weeks), then, after implantation, with the Brain-Machine Interface (6 months). * During the third phase, only follow-up visits will be scheduled to ensure the longevity of the implants and the maintenance of the motor progress achieved through rehabilitation.