Home > Specialties > Airway Clearance Units, High-Frequency Chest Wall Oscillation, Vest

Airway Clearance Units, High-Frequency Chest Wall Oscillation, Vest

Definition : Airway clearance units designed to applied non-invasive, high-frequency oscillation (i.e., compression) to the chest wall using a vest. These devices typically consist of large-volume variable-frequency air-pulse delivery unit attached to a non-stretchable inflatable vest worn by the patient and that extends over the entire torso. The pressure (in a range from 28 to 39 mm of H20) is applied by the vest either during all the respiratory cycle or only during expiration, in pulses which frequency is controlled by the patient typically in a range from 5 to 25 Hz. Vest units are intended for self-administration of therapy for mucus clearance and sputum induction in patients with chronic obstructive pulmonary diseases.

Entry Terms : "Chest-Wall Compression Units, Vest"

UMDC code : 20740

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