21 C.F.R. § 868.5935 External negative pressure ventilator.
Title 21 - Food and Drugs
(a) Identification. An external negative pressure ventilator (e.g., iron lung, cuirass) is a device chamber that is intended to support a patient's ventilation by alternately applying and releasing external negative pressure over the diaphragm and upper trunk of the patient. (b) Classification. Class II (performance standards).
Title 21: Food and Drugs
PART 868—ANESTHESIOLOGY DEVICES
Subpart F—Therapeutic Devices
§ 868.5935 External negative pressure ventilator.