Title 21: Food and Drugs
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/ PART 892 - RADIOLOGY DEVICES
/ Subpart B - Diagnostic Devices / § 892.1820 Pneumoencephalographic chair.
§ 892.1820 Pneumoencephalographic chair.
(a) Identification. A pneumoencephalographic chair is a chair intended to support and position a patient during pneumoencephalography (x-ray imaging of the brain).
(b) Classification. Class II (special controls). The device is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 892.9.