Breathing exercise device
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United States of America Patent
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Sep 13, 1988
Grant Date -
N/A
app pub date -
Apr 27, 1987
filing date -
Apr 27, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A breathing exercise device is formed of a tubular body with a mouthpiece at its proximal end, a resistor sleeve coaxial with the body tube and having a number of resistance openings which align with a body tube opening, and a selective one way flap valve assembly disposed at the distal end of the body tube. The flap valve assembly can be rotated 180 degrees to change the mode of the breathing exercise device from inhalation to exhalation thereapy, or vice versa.
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