A design for inhalation therapy.

The purpose of this presentation is to describe a parallel piped oxygen and piped compressed air system for use in inhalation therapy, in patients with chronic pulmonary disease. Intermittent positive pressure breathing (IPPB) with nebulized bronchodilator has been utilized widely in the treatment of conditions associated with disturbances in respiration. Subjective benefits and functional improvement have been reported to occur incident to this mode of therapy.’ Wu and her associates5 demonstrated that the greatest and most prolonged improvement of ventilatory function in patients with severe chronic pulmonary insufficiency or with excessive secretions was obtained by this method as compared with other methods of aerosolization. Bronchial drainage is promoted by IPPB as a result of the rapid release of inspiratory pressure at the beginning of exhalation with a peak instaneous inspiratory flow velocity.6 That the effectiveness of compressed