{"data":{"id":"us/21-cfr-882.5810","jurisdiction":"us","citation":"21 CFR 882.5810","heading":"External functional neuromuscular stimulator.","body":"(a) Identification. An external functional neuromuscular stimulator is an electrical stimulator that uses external electrodes for stimulating muscles in the leg and ankle of partially paralyzed patients (e.g., after stroke) to provide flexion of the foot and thus improve the patient's gait.\n(b) Classification. Class II (performance standards).","path":["Title 21—Food and Drugs","CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES","SUBCHAPTER H—MEDICAL DEVICES","PART 882—NEUROLOGICAL DEVICES","Subpart F—Neurological Therapeutic Devices"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-21.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:24:47Z","sha256":"0af4e953ae28a606805cf511b87f8d103c7601d9f60cd77804283e416de31a8f","source_id":"us-cfr","stale":true,"prev":"us/21-cfr-882.5808","next":"us/21-cfr-882.5820"},"notice":"GroundRules: Original legal text. Not legal advice."}