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March 19, 1938

EXPANDING AIRWAY TUBE

JAMA. 1938;110(12):892. doi:10.1001/jama.1938.62790120006008c

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Abstract

The object of airway tubes, Magill catheters and catheterization of the trachea is to overcome obstructions in the airway and establish natural breathing. Only experts can introduce a catheter either nasally or directly, but an airway tube can be used in an emergency by any one. Tubes are now an indispensable part of every anesthetist's kit, but the ordinary airway does not always work, as, in addition, the jaw may have to be held forward in order to give free breathing. The expanding airway tube allows natural breathing; that is, nasal as well as oral. After insertion, the blades are opened as one would manipulate a vaginal speculum, by turining a small screw, the largest expansion being near the entrance of the trachea, thus making possible natural breathing (nasal and oral). Oxygen can now be easily introduced if the air is insufficient. Care must be taken not to remove the

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