{"data":{"id":"us/21-cfr-882.1835","jurisdiction":"us","citation":"21 CFR 882.1835","heading":"Physiological signal amplifier.","body":"(a) Identification. A physiological signal amplifier is a general purpose device used to electrically amplify signals derived from various physiological sources (e.g., the electroencephalogram).\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 B—Neurological Diagnostic 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":"f1b5ad23d9dab0d94ef65d344aae9d45f579740a1cac02cf8d75852377d3fe53","source_id":"us-cfr","stale":true,"prev":"us/21-cfr-882.1825","next":"us/21-cfr-882.1845"},"notice":"GroundRules: Original legal text. Not legal advice."}