{"data":{"id":"us/21-cfr-868.1920","jurisdiction":"us","citation":"21 CFR 868.1920","heading":"Esophageal stethoscope with electrical conductors.","body":"(a) Identification. An esophageal stethoscope with electrical conductors is a device that is inserted into the esophagus to listen to a patient's heart and breath sounds and to monitor electrophysiological signals. The device may also incorporate a thermistor for temperature measurement.\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 868—ANESTHESIOLOGY DEVICES","Subpart B—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":"733d831fb22e6e4148f7f0b916c03ced693ee93bc9b4d55692a5defc12cdb038","source_id":"us-cfr","stale":true,"prev":"us/21-cfr-868.1910","next":"us/21-cfr-868.1930"},"notice":"GroundRules: Original legal text. Not legal advice."}