Diagnostic device for exercise induced laryngeal obstruction (eilo) and uses thereof

A wearable apparatus, comprising:

• a sound sensor configured to acquire an audio signal from a throat of a wearer;
• a strain gauge coupled to a flexible band and configured to measure a strain on the strain gauge when the flexible band is in contact with a chest of the wearer during a respiratory cycle of the wearer and output a respiratory signal corresponding to the strain;
• and
• processing circuitry contained in a housing and configured to synchronize acquisition of the audio signal and acquisition of the respiratory signal, receive the audio signal from the sound sensor and the respiratory signal from the strain gauge, and transmit the audio signal and the respiratory signal to external processing circuitry.

A wearable apparatus, comprising:

• a sound sensor configured to acquire an audio signal from a throat of a wearer;
• a strain gauge coupled to a flexible band and configured to measure a strain on the strain gauge when the flexible band is in contact with a chest of the wearer during a respiratory cycle of the wearer and output a respiratory signal corresponding to the strain;
• and
• processing circuitry contained in a housing coupled to a wristband and configured to synchronize acquisition of the audio signal and acquisition of the respiratory signal, receive the audio signal from the sound sensor and the respiratory signal from the strain gauge, and transmit the audio signal and the respiratory signal to external processing circuitry,
• wherein the external processing circuitry is configured to identify an inspiration segment of the respiratory signal corresponding to an inspiration phase of the respiratory cycle and detect inspiratory stridor based on a segment of the audio signal acquired during acquisition of the inspiration segment of the respiratory signal.