Airway Clearance Units, High-Frequency Chest Wall Oscillation, Percussion
Definition : Airway clearance units designed to apply automated external percussion to the chest to obtain a high-frequency oscillation (HFO) of the air column in the conducting airways. These units are usually pneumatic powered; the percussion is applied to the chest typically at frequencies between 13 and 15 Hz (close to the natural harmonic frequency of the chest wall). They are used mainly to facilitate secretion removal in vulnerable patients, especially those suffering from cystic fibrosis and other pulmonary, neuromuscular, or neurological disorders that affect normal secretion of mucous from the airways.
Entry Terms : "Powered Percussors" , "Percussive Chest-Wall Oscillation Units" , "Chest Percussors" , "Percussors, Chest"
UMDC code : 20739