This bed-type medical device delivers vibrational energy across the chest wall for patients with respiratory conditions aiding in the clearance of accumulated sputum in the airways and lungs. It incorporates nine electromagnetic high-frequency, low-strain vibration motors to produce distributed vibrational energy, which is applied via the chest wall oscillation plate to multiple lung regions, enhancing comprehensive sputum clearance through multi-point oscillation

This bed-type medical device applies vibrational energy to the chest wall of patients with respiratory diseases , to facilitate sputum clearance from the airways and lungs. The device employs a single electromagnetic high-frequency, low-strain vibration motor that generates vibrational energy, which transmits through the chest wall oscillation plate directly to the patient's chest, promoting effective mucus mobilization via targeted oscillations.

The St. George's Respiratory Questionnaire (SGRQ) is a validated patient-reported outcome measure assessing health-related quality of life in patients with respiratory disease. It consists of three domains: Symptoms, Activity, and Impacts. Domain scores and the total score range from 0 to 100, with higher scores indicating worse health status and greater impairment of respiratory-related quality of life.

It is a subjective assessment scale in which patients rate their perceived "difficulty in breathing" from 0 (none) to 10 (worst), and it is used to objectively assess changes in symptoms and evaluate treatment effects in patients with respiratory or cardiac diseases

The severity of cough (VAS) is assessed using a Visual Analogue Scale, a subjective method in which patients rate the severity of their cough by marking their symptoms on a straight line from 0 (no cough at all) to 10 (the worst imaginable), which is then recorded as a score.

Cough and sputum were assessed using the Cough and Sputum Assessment Questionnaire (CASA-Q), which evaluates symptom severity and impact across four domains. Domain scores range from 0 to 100, with higher scores indicating less severe symptoms and lower disease impact.

Oxygen saturation measured by pulse oximetry, defined as the percentage of hemoglobin saturated with oxygen in arterial blood. Values are expressed as a percentage (%), with higher values indicating better oxygenation status.

Forced vital capacity measured using pulmonary function testing, defined as the maximum volume of air forcibly exhaled after full inspiration. Values are recorded in liters (L).

Forced expiratory volume in one second measured using pulmonary function testing, defined as the volume of air forcibly exhaled in the first second of a forced expiration. Values are recorded in liters (L).

The ratio of forced expiratory volume in one second to forced vital capacity measured using pulmonary function testing. Values are expressed as a percentage (%).

Forced expiratory flow between 25% and 75% of forced vital capacity measured using pulmonary function testing, reflecting airflow in the mid-portion of forced expiration. Values are recorded in liters per second (L/s).

Peak expiratory flow measured using pulmonary function testing, defined as the maximum flow achieved during a forced expiration. Values are recorded in liters per minute (L/min).