Abstract
A new special endotracheal tube for ventilating patients during microlaryngeal surgery is described. It is 6.25 cm long, made of silicone elastomer and has a “soft” cuff built onto it. It is placed below the patient's cords and the cuff blown up while the patient is paralyzed, and under anesthesia. The patient's lungs can be ventilated by jetting oxygen from the jet tube which is built into it. While the oxygen is not flowing the patient can passively exhale through the tube and cords. Obstruction to the surgical field is minimal and consists of the cuff inflating tube .08 cm in diameter and the jet tube .25 cm in diameter which will be in the posterior commissure out of the way. The tube is designed in such a way that both during inflation and exhalation gas is blown out through the cords to help to blow blood and debris away from the operating field.
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