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The first widely used device was the iron lung, developed by Philip Drinker and Louis Shaw in 1928. Initially used for coal gas poisoning treatment, the iron lung gained fame for treating respiratory failure caused by polio in the mid-20th century. John Haven Emerson introduced an improved and more affordable version in 1931. The Both ...
The Both respirator, also known as the Both Portable Cabinet Respirator, was a negative pressure ventilator (more commonly known as an "iron lung") invented by Edward Both in 1937. Made from plywood , the respirator was an affordable alternative to the more expensive designs that had been used prior to its development, and accordingly came into ...
In most NPVs (such as the iron lung in the diagram), the negative pressure is applied to the patient's torso, or entire body below the neck, to cause their chest to expand, expanding their lungs, drawing air into the patient's lungs through their airway, assisting (or forcing) inhalation. When negative pressure is released, the chest naturally ...
In 1959, according to the National Museum of American History, 1,200 iron lungs were in use. Cocaine-infused wine On a glass shelf in the lobby, visitors will find a cocaine-infused red wine ...
An Emerson iron lung. The patient lies within the chamber, which when sealed provides an oscillating atmospheric pressure. This particular machine was donated to the Centers for Disease Control and Prevention Museum by the family of polio patient Barton Hebert of Covington, Louisiana, who had used the device from the late 1950s until his death in 2003.
Thus the company was approached to develop an alternative. The result was the Both Respirator: a lightweight, comparatively inexpensive respirator made out of plywood (the name "iron lung" continued to be used by many, in spite of the wooden construction). The design proved effective, and the respirators were soon employed throughout Australia.
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A negative pressure ventilator, also known as iron lung (colloquialism) or pulmotor (generic trademark), is a mechanical respirator. This sentence had two fundamental errors: It implied that all "negative pressure ventilators" were "iron lungs," when, in fact, iron lungs are just one type of NPV. There are several others, some itemized in the ...