View all text of Subpart F [§ 868.5090 - § 868.5995]
§ 868.5935 - External negative pressure ventilator.
(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).