Clinical Study of the Efficacy and Safety of Spinal Cord Stimulation in Patients With Limb Motor Dysfunction Following Stroke

Inclusion Criteria: 1. Hemiparesis resulting from a single ischemic or hemorrhagic stroke, with a disease duration of ≥6 months. 2. Aged between 20 and 80 years (inclusive). 3. Received regular rehabilitation therapy after stroke but with poor recovery of limb motor function; Fugl-Meyer Assessment upper extremity score \>7 and \<45, and lower extremity score \>5 and \<30. 4. Partially preserved sensory function. Exclusion Criteria: 1. Severe systemic diseases (e.g., neurological disorders other than stroke, cancer, severe circulatory or respiratory diseases, liver or kidney failure, etc.) or other conditions that may impair the subject's motor or cognitive function. 2. Presence of spinal cord-related nerve compression that could cause severe functional impairment. 3. Women who are pregnant or breastfeeding. 4. Use of anticoagulant, antiplatelet, antispasmodic, or antiepileptic medications prior to enrollment or during the study period. 5. Severe joint contracture that, in the clinical investigator's opinion, precludes participation in the study. 6. Severe mental illness or intellectual disability that prevents cooperation with treatment or follow-up questionnaires, with a Mini-Mental State Examination (MMSE) score \<24. 7. Presence of other implanted medical devices. 8. Severe claustrophobia.