In a situation of continuously growing road-and-traffic traumatism serious chest traumas with the presence of penetrating wounds are not a rare case. The correct transportation of the injured requires hermetization of the open pneumothorax with ensured draining of the pleural cavity in order to eliminate the possibility of the appearance of a valve pneumothorax. With the means, existing up to now, it is difficult to achieve hermetization during transportation and draining of the pleural cavity at the same time. The article presents the structure and the way of usage of the created by the authors so-called 'SET FOR HERMETIZATION DURING TRANSPORTATION AND DRAINING OF THE PLEURAL CAVITY'. The product is tested in an experiment on dogs. The SET is designed to render medical assistance in emergencies and to transport injured people with penetrating wounds in the chest wall and injuries in the lungs.