21 CFR 870.2860 - Heart sound transducer.

§ 870.2860 Heart sound transducer.

(a)Identification. A heart sound transducer is an external transducer that exhibits a change in mechanical or electrical properties in relation to sounds produced by the heart. This device may be used in conjunction with a phonocardiograph to record heart sounds.

(b)Classification. Class II (performance standards).

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United States Code