Apparatus for respiratory training
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United States of America Patent
Stats
-
Nov 26, 1991
Grant Date -
N/A
app pub date -
Nov 22, 1989
filing date -
Mar 25, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A respiratory training apparatus comprises a mouthpiece, a respiration chamber which includes an inspiration chamber having a check valve and an expiration chamber having a check valve. Exchangeable covers are provided for the chambers for varying the air flow resistance. A branch pipe comprising a valve is connected through as flexible tube to the lower end of a manometer's U-shaped tube, and a pipe stub extends from the mouthpiece and communicates with the upper end of one of the tube sections of the U-shaped manometer.
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Family
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