CFR > Title 21 - Food and Drugs > CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES > SUBCHAPTER H—MEDICAL DEVICES (parts 800 to 898) > PART 874—EAR, NOSE, AND THROAT DEVICES > SUBPART B—Diagnostic Devices (§874.1050 to §874.1925) > 874.1925—Toynbee diagnostic tube.

874.1925—Toynbee diagnostic tube.

(a) Identification. The toynbee diagnostic tube is a listening device intended to determine the degree of openness of the eustachian tube.
(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 § 874.9.

Code of Federal Regulations

[51 FR 40389, Nov. 6, 1986, as amended at 65 FR 2316, Jan. 14, 2000]