CFR
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868.1910—Esophageal stethoscope.
(a) Identification.
An esophageal stethoscope is a nonpowered device that is inserted into a patient's esophagus to enable the user to listen to heart and breath 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 § 868.9.
Code of Federal Regulations
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