Tube interface for maximal inspiratory and expiratory pressure measurement
Tube interface for maximal inspiratory and expiratory pressure measurement
The image depicts a wide based rubber tube that fits over the lips (arrow) that is connected to the hand-held transducer (arrow). This device is useful for patients who rupture the lip seal due to high pressures during maximal expiration or for patients who cannot obtain a good seal with their lips due to neuromuscular weakness.