 In 1913 , Chevalier Jackson was the first to report a high rate of success for the use of direct laryngoscopy as a means to intubate the trachea . Jackson introduced a new laryngoscope blade that incorporated a component that the operator could slide out to allow room for passage of an endotracheal tube or bronchoscope . Also in 1913 , New York surgeon Henry H. Janeway ( 1873 – 1921 ) published results he had achieved using a laryngoscope he had recently developed . Another pioneer in this field was Sir Ivan Whiteside Magill ( 1888 – 1986 ) , who developed the technique of awake blind nasotracheal intubation , the Magill forceps , the Magill laryngoscope blade , and several apparati for the administration of volatile anesthetic agents . The Magill curve of an endotracheal tube is also named for Magill . Sir Robert Reynolds Macintosh ( 1897 – 1989 ) introduced a curved laryngoscope blade in 1943 ; the Macintosh blade remains to this day the most widely used laryngoscope blade for orotracheal intubation . 
