{"data":{"id":"us/21-cfr-874.4175","jurisdiction":"us","citation":"21 CFR 874.4175","heading":"Nasopharyngeal catheter.","body":"(a) Identification. A nasopharyngeal catheter is a device consisting of a bougie or filiform catheter that is intended for use in probing or dilating the eustachian tube. This generic type of device includes eustachian catheters.\n(b) Classification. Class I (general controls). The device is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 874.9.","path":["Title 21—Food and Drugs","CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES","SUBCHAPTER H—MEDICAL DEVICES","PART 874—EAR, NOSE, AND THROAT DEVICES","Subpart E—Surgical 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":"346743af49f293fccb004a0f55998f8798d1355f8325c36bfd3c4231c60cf681","source_id":"us-cfr","stale":true,"prev":"us/21-cfr-874.4140","next":"us/21-cfr-874.4180"},"notice":"GroundRules: Original legal text. Not legal advice."}