Photo and description are kindly provided by Dr. David Chinn, for an upcoming ARTP article.
“Recording dial, Gaensler Spirometer. The FEV1 (or FEV0.75) was recorded using the stylus. The FVC was recorded using the outer indicator.”
Photo and description are kindly provided by Dr. David Chinn, for an upcoming ARTP article.
“Recording dial, Gaensler Spirometer. The FEV1 (or FEV0.75) was recorded using the stylus. The FVC was recorded using the outer indicator.”
Photo and description provided by Dr. David Chinn, for the ARTP in an upcoming article.
“Gaensler spirometer (Poulton & Son, Barry), 1960s.
This device was obtained from the MRC unit at Llandough Hospital, Wales after its closure in the 1980s. For demonstration purposes the timing device is shown attached to the upright where the counter balance weight would have been in place.”
From ‘Analysis of the ventilatory defect by timed vital capacity measurements.’ By Edward Gaensler, American Review of Tuberculosis, 1951; 64(3): page 260.
“Fig. 1. Vital capacity spirometer with timed capacity attachment and electronic timer. The insert shows the timing device with the cover removed. On the left is the micro-switch which initiates the timed interval when the spirometer bell begins to rise. On the right is the midget solenoid which moves the added second pointer only while it is activated by the timer. “