A Simplified Respiratory Feedback Device

Abstract

When the respiratory biofeedback technique is used in rehabilitation, the simplified device is required for training of respiratory responses in patients with spinal cord injuries or cerebral palsy. Therefore such a device was developed to aid training at bedside or home. This device is constructed from the following four parts : (l) pick up, (2) pressure-voltage transducer, (3) amplifier, and (4) feedback display. Outputvoltage of this device showed a linear correlation with tidal volume ranging from 0.5 to 1.0 litre.