Work On The Iron Lung
Emerson's father, then Health Commissioner of New York City, encouraged him to work on an artificial respirator after noticing the beginning of a polio epidemic. Emerson thus began his work on the iron lung in the early 1930s, improving the design of the Drinker lung. Completed in July 1931, Emerson's lung was quieter, lighter, more efficient, and cheaper; with a $1000 price tag, it sold for less than half the price of Drinker's make. Drinker threatened legal action against Emerson, and later filed a lawsuit which backfired; Drinker not only lost the suit, his patents were declared invalid.
Emerson's new design replaced blowers and valves with a flexible diaphragm in a dual layer. This acted as a failsafe: if one layer was torn, the second would continue operation. He also made improvements to the chamber. The first example of this design, nicknamed "Old Number One", is currently on display at the Smithsonian Institution in Washington, DC. Emerson continued to make improvements to the iron lung, adding a quick opening and closing function, an improved pressure gauge, and emergency hand operation. His final improvement was the addition of a transparent positive pressure dome, allowing ventilation when the chamber was opened to care for the patient.
Read more about this topic: John Haven Emerson
Famous quotes containing the words work, iron and/or lung:
“The slightest living thing answers a deeper need than all the works of man because it is transitory. It has an evanescence of life, or growth, or change: it passes, as we do, from one stage to the another, from darkness to darkness, into a distance where we, too, vanish out of sight. A work of art is static; and its value and its weakness lie in being so: but the tuft of grass and the clouds above it belong to our own travelling brotherhood.”
—Freya Stark (b. 1893–1993)
“Along the iron veins that traverse the frame of our country, beat and flow the fiery pulses of its exertion, hotter and faster every hour. All vitality is concentrated through those throbbing arteries into the central cities; the country is passed over like a green sea by narrow bridges, and we are thrown back in continually closer crowds on the city gates.”
—John Ruskin (1819–1900)
“Lord, confound this surly sister,
Blight her brow with blotch and blister,
Cramp her larynx, lung and liver,
In her guts a galling give her.”
—J.M. (John Millington)