Fig. 1From: Failed ventilation via i-gel due to air leakage of the drainage portA, B Illustrations of i-gel placement. A Adequate i-gel placement. Ventilated air flows in the direction of the trachea. B Inadequate i-gel placement, in which the drainage port at the distal tip is located at the laryngeal inlet. Ventilated air leaks out through the drainage portBack to article page