The Macintosh laryngoscope has a curved blade which allows exposure of the larynx by positioning the tip in the vallecula, anterior to the epiglottis, lifting it out of view. Designed 1943 by Sir Robert Reynolds Macintosh (1897–1989) New Zealand Anaesthetist.
The Miller laryngoscope is a straight blade designed to obtain a view of the vocal cords by directly lifting the epiglottis. It has useful application in ‘floppy’ airways making it popular within paediatric anaesthesia
Robert Arden Miller (1906 – 1976) American anesthesiologist. Miller laryngoscope blade, first manufactured by the Welch-Allyn Company (1941)
Laryngoscope - device used to visualise the vocal cords to facilitate intubation