He invented the spirometer to measure what he called the vital capacity, ie, the capacity to live. Much later, the concept of the timed vital capacity, which ...
Autres questions
Why did John Hutchinson invent the spirometer?
John Hutchinson, a surgeon, recognized that the volume of air that can be exhaled from fully inflated lungs is a powerful indicator of longevity. He invented the spirometer to measure what he called the vital capacity, ie, the capacity to live.
What is a good number to hit on a spirometer?
Average values in healthy patients aged 20-60 range from 5.5 to 4.75 liters in males and from 3.75 to 3.25 liters in females. This parameter measures the amount, or volume, exhaled by a patient in the first second of the expiration after a full inspiration.
Who invented the spirometry test?
Abstract. 175 years have elapsed since John Hutchinson introduced the world to his version of an apparatus that had been in development for nearly two centuries, the spirometer.
5 oct. 2021
Who invented the incentive spirometer?
The spirometer was first invented by John Hutchinson in the 1840s during the Industrial Revolution in London.
Hutchinson invented the spirometer, a device for measuring lung capacity, which he used while evaluating candidates for life insurance as a surgeon for ...
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The spirometer was originally invented in the 1840's by John Hutchinson an English surgeon. The device (which was as tall as an adult patient) was essentially ...
He invented the spirometer to measure what he called the vital capacity, ie, the capacity to live. Much later, the concept of the timed vital capacity, which ...
He invented the spirometer to measure what he called the vital capacity, ie, the capacity to live. Much later, the concept of the timed vital capacity, which ...
5 oct. 2021 · Hutchinson's spirometer consisted of a counterbalanced bell inverted in water, whereby breathing into a connected pneumatic tube resulted in ...
John Hutchinson, the inventor of the spirometer--hisnorthcountrybackground, life in London, and scientific achievements. · View on publisher site · PDF (1.9 MB)
In this detailed medical guide, John Hutchinson offers a comprehensive analysis of the spirometer, stethoscope, and scale-balance, and their use in ...
He invented the spirometer to measure what he called the vital capacity, ie, the capacity to live. Much later, the concept of the timed vital capacity, which ...