Maximum expiratory pressure device
First Claim
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1. A respiratory therapy device for applying a maximum expiratory pressure to the respiratory system of a user and simulating a cough, comprising:
- a housing having an opening therethrough through which a user may exhale expiratory air, said housing having a proximal end for engagement by a user and through which the user exhales into the housing, said housing having a distal end open to ambient air and through which user exhaled expiratory air may be passed from the housing, a closure positioned adjacent said distal end of said housing and movable between a first position sealing said open distal end and occluding the flow of expiratory air therethrough, and a second position permitting the flow of expiratory air therethrough, and a user actuated trigger for releasing said closure from said first position to said second position during exhalation thereby simulating the opening of a closed glottis against high airway pressures.
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Abstract
An improved maximum expiratory pressure device and cough simulator including a flow tube having an integral mouthpiece at a patient input end, and a hinged door at an opposite or discharge end for sealing off the flow tube. The hinged door is held closed by a releasable trigger operable by the patient to release the door after pressure build up to simulate a cough. A foldable pressure monitoring port is provided to connect the maximum expiratory pressure device to a pressure gauge, if desired, for monitoring the expiratory pressure developed within the flow tube.
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Citations
8 Claims
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1. A respiratory therapy device for applying a maximum expiratory pressure to the respiratory system of a user and simulating a cough, comprising:
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a housing having an opening therethrough through which a user may exhale expiratory air, said housing having a proximal end for engagement by a user and through which the user exhales into the housing, said housing having a distal end open to ambient air and through which user exhaled expiratory air may be passed from the housing, a closure positioned adjacent said distal end of said housing and movable between a first position sealing said open distal end and occluding the flow of expiratory air therethrough, and a second position permitting the flow of expiratory air therethrough, and a user actuated trigger for releasing said closure from said first position to said second position during exhalation thereby simulating the opening of a closed glottis against high airway pressures. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification