{"data":{"id":"us/21-cfr-870.2840","jurisdiction":"us","citation":"21 CFR 870.2840","heading":"Apex cardiographic transducer.","body":"(a) Identification. An apex cardiographic transducer is a device used to detect motion of the heart (acceleration, velocity, or displacement) by changes in the mechanical or electrical properties of the device.\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 870—CARDIOVASCULAR DEVICES","Subpart C—Cardiovascular Monitoring 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":"7ba1a31fadb03ed4a313c6307d4e5887f9612e74110a964a1df9d45b8212d97b","source_id":"us-cfr","stale":true,"prev":"us/21-cfr-870.2810","next":"us/21-cfr-870.2850"},"notice":"GroundRules: Original legal text. Not legal advice."}