British Journal of Anaesthesia, 1993, Vol. 70, No. 3 372-377
© 1993 The Board of Management and Trustees of the British Journal of Anaesthesia
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COMPARISON OF PORTABLE EMERGENCY VENTILATORS USING A LUNG MODEL
Department of Anaesthesiology, University Hospital S-581 85 Linkoping, Sweden
Correspondence to A.J
A lung model was used to test the performance of five emergency ventilators (MEDUMA T Elektronik, MEDUMAT Variabel, OSIRIS, OXYLOG and rescuPAC 2DM). The model comprised two glass jars filled with water to suitable compliances and connecting tubes. A resistance (obstruction) was added to one of the bronchial tubes in order to simulate a patient with obstructive lung disease. Preset minute volume was compared with measured minute volume and the gas distribution produced by the different ventilators. Acceptable performance was found with the MEDUMAT Elektronik, MEDUMAT Variabel, OSIRIS and OXYLOG ventilators. (Br. J. Anaesth. 1993; 70: 372377)