Oral airways, such as the Guedel, make it easier for patients to be ventilated with manual resuscitators, such as the Porton and the Ambu bag. They depress the tongue and prevent it from falling to the back of the throat where it would obstruct the airway.Black rubber curved tube with metal insert at baseHallmarked on metal: [BRITISHMADE / 3]guedel, anaesthesia, ventilation, medical history

Oral airways, such as the Guedel, make it much easier for patients to be ventilated. They depress the tongue and prevent it from falling to the back of the throat where it would obstruct the airway.Curved, red rubber tubing with a metal connector in one end. 19M.M. DOairway, ventilation, obstruction, guedel, rubber

Captain Arthur Guedel was an American anesthetist who arrived at the Western Front with the American expeditionary force prior to America's official entry. He trained students in airway management and the monitoring of dept of anaesthesia using his chart board description of the signs and stages of anaesthesia. Black plastic tube, flattened and squared off, with a flat mouth plate. There is a metal inner tube which also has a flat plate.Stamped into metal flat plate: KING / 1 Moulded into plastic flat piece: KINGguedel, airway, pharyngeal, gilbert brown