Non-counterweighted spirometer design attributed to Ph. Phoebus. From ‘Handbuch der pneumatischen therapie’, by Dr. Theodore Knauth, published 1876, page 292.
Tag Archives: Phoebus
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.