[Building and performance of the Jena system for normal frequency injector (jet) ventilation in endoscopic treatments].
Experiences with three variants of use of normofrequency injector (jet)-ventilation during endoscopic procedures in laryngo-tracheobronchial area are reported. The used simple instruments and the efficiency of the method with regard to the gas exchange of the patients are described. Moreover, experimental investigations of the Kleinsasser laryngoscopic equipment at the lung model were performed. Problems of the supervision and non-endoscopic applications of the method are mentioned.