Model and clinical studies of a novel differential lung ventilation system for adults

In clinical conditions when the mechanical properties of each lung of a patient differ very much, it is necessary to ventilate them separately. The connection of each lung with one respirator, by means of a double-lumen endotracheal tube, enables its physical separation and control of its ventilation. Generally, therefore, two synchronized respirators are required to perform differential ventilation of lungs. It is also possible to use one respirator with a feedback-controlled variable pneumatic valve to divide the total ventilation volume from a respirator between two lungs.