From the Phrenological Journal and Science of Health, Volume 111, No 4, April, 1901. Un-numbered front page. This was later called the Simplex spirometer.
Category Archives: 1900s
Spirometer, Wells, 1904
US Patent no. 757,797. A non-counter-weighted water-seal spirometer. The side panel with the volume scale was glass. This was intended as an arcade spirometer since the valve (J) was to be attached to a coin-operated mechanism. There is no record of it every having been manufactured.
Spirometer, Spalding’s, 1901
From: A manual for physical measurements for use in normal schools: public and preparatory schools, boys’ clubs, girls’ clubs, and young men’s Christian associations, with anthropometric tables for each height of each age and sex from five to twenty years, and vitality coefficients, by William Walter Hastings, Phd. Published by the International Young Men’s Christian Association Training School, 1901. page 18.
“The pupil, after loosening the clothing about the chest and taking a full inspiration, filling the lungs completely, should blow steadily into the spirometer until all the air possible has been expelled from the lungs. Two or three trials may be allowed.”
Spirometer, Phoebus, 1901
From: Der Ausbau im diagnostischen Apparat der klinischen Medizin. By Martin Mendelsohn. Published by Bergmann, 1901, page 131.
Although this drawing was published in 1901, the Phoebus spirometer is mentioned in medical texts starting in the early-1850’s.
Spirometer, Robin’s, 1906
From: Traité d’hygiène, By Paul Brouardel, Ernest Mosny, Charles Dopter, Jean Rouget. Published by J. B. Baillière, 1906, page 22.
Pitot Flow Sensor, 1904, End-view
From: Die Geschwindigkeith des Athemstromes und das Athemvolum des Menschen, by H. Zwaardemaker and C.D. Ouwehand, Archiv für Anatomie und Physiologie, Volume 28, Published by Physiologische Gesellschaft zu Berlin, 1904, page 243.
An early flow measuring device. When a subject blew through the central tube (a), positive and negative pressure in the opposed pitot tubes (b) caused thin plastic domes (f) to rise or fall. Their movement was transferred to a long, counter-balanced pen which traced a curve on a smoked drum.
Pitot Flow Sensor, 1904
From: Die Geschwindigkeith des Athemstromes und das Athemvolum des Menschen, by H. Zwaardemaker and C.D. Ouwehand, Archiv für Anatomie und Physiologie, Volume 28, Published by Physiologische Gesellschaft zu Berlin, 1904, page 243.
An early flow measuring device. When a subject blew through the central tube (a-a’), positive and negative pressure in the opposed pitot tubes (b-b) caused thin plastic domes (f-f) to rise or fall. Their movement was transferred to a long, counter-balanced pen which traced a curve on a smoked drum.
Spirometer and Mask, Children’s Ventilation Measurements, 1902
From: Untersuchungen uber die Athmunsgrosse des Kindes, by Dr. Konrad Gregor, Archiv Fur Physiologie, published by Veit and Co., 1902, page 73.
Breathing mask, Children’s, 1902
From: Untersuchungen uber die Athmunsgrosse des Kindes, by Dr. Konrad Gregor, Archiv Fur Physiologie, published by Veit and Co., 1902, page 67.
Spirometer, Marcet Modification, 1909
From: The Harvey Lectures, Volume 3, 1909, page 226. A standard Hutchinson-style spirometer outfitted with what appear to be Muller (water seal) one-way valves and a mask for measuring tidal or minute volume.