CFR > Title 21 - Food and Drugs > CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES > SUBCHAPTER H—MEDICAL DEVICES (parts 800 to 898) > PART 868—ANESTHESIOLOGY DEVICES > SUBPART F—Therapeutic Devices (§868.5090 to §868.5995) > 868.5935—External negative pressure ventilator.

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).