21 C.F.R. § 870.2390 Phonocardiograph.
Title 21 - Food and Drugs
(a) Identification. A phonocardiograph is a device used to amplify or condition the signal from a heart sound transducer. This device furnishes the excitation energy for the transducer and provides a visual or audible display of the heart sounds. (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 §870.9. [45 FR 7907-7971, Feb. 5, 1980, as amended at 61 FR 1121, Jan. 16, 1996; 66 FR 38796, July 25, 2001]
Title 21: Food and Drugs
PART 870—CARDIOVASCULAR DEVICES
Subpart C—Cardiovascular Monitoring Devices
§ 870.2390 Phonocardiograph.