Lung exerciser with variable resistance
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United States of America Patent
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-
Sep 25, 1984
Issued Date -
N/A
app pub date -
Jun 19, 1981
filing date -
Oct 20, 1980
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A device consisting of an adjustable volume bellows made of inexpensive materials to be used as a visual indicator and volume measurement to encourage a patient to breath deeply as an exercise is provided. Means for adding calibrated weight to vary resistance is also provided.
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