RESPIRATORY DISEASE MONITORING SYSTEM
First Claim
1. A method of monitoring a respiratory illness, comprising:
- detecting a patient sound, comprising at least one of an abnormal breath sound of a patient and a cough sound of the patient;
detecting a movement of at least part of the patient;
determining a correlation between an indicator of the patient sound and an indicator of the movement;
outputting to an output device an indicator, based on the correlation, of at least one of a severity of the respiratory illness and a probability of a respiratory illness-related event of the patient.
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Accused Products
Abstract
An automated system for monitoring respiratory diseases, such as asthma, provides noninvasive, multimodal monitoring of respiratory signs and symptoms that can include wheeze and cough. Some embodiments employ a mobile device, such as a cell phone, in which raw data from a microphone and an accelerometer are processed, analyzed, and stored. Data can be collected continuously. Time domain and frequency domain analyses of signals to determine, e.g., energy, duration, and spectral content of candidate sounds can be employed to discriminate symptoms of interest from background sounds and to establish significance. Accelerometer signals are analyzed to determine activity levels. Analyses of a user'"'"'s symptoms and activity level prior to, during, and after an event can provide meaningful determinations of disease severity and predict future respiratory events. The system can provide a summary of data, as well as an alarm when symptom severity reaches a threshold.
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Citations
23 Claims
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1. A method of monitoring a respiratory illness, comprising:
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detecting a patient sound, comprising at least one of an abnormal breath sound of a patient and a cough sound of the patient; detecting a movement of at least part of the patient; determining a correlation between an indicator of the patient sound and an indicator of the movement; outputting to an output device an indicator, based on the correlation, of at least one of a severity of the respiratory illness and a probability of a respiratory illness-related event of the patient. - View Dependent Claims (2, 3, 4)
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5. An asthma monitoring system, comprising:
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a sound sensing device that detects sound over at least a portion of the audible spectrum and converts the detected sound to a sound signal; an acceleration sensing device that detects acceleration and converts the detected acceleration to an acceleration signals; an output device; and a computation module, operably connected to the sound sensing device, the acceleration sensing device, and the output device, the computation module comprising; a memory, containing instructions for processing the sound signal and the acceleration signal; a communication module configured to transmit signals to an external device; and a processor module, operably connected to the memory, the communication module, and the output device, and configured to receive the sound signal and the acceleration signal; wherein the processor module retrieves the instructions from the memory, processes the sound signal and the acceleration signal according to the instructions, stores data generated according to the instructions, sends at least one signal generated according to the instructions to the output device, and sends data through the communication module to the external device according to the instructions. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method of monitoring asthma of a patient, comprising:
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generating a sound signal, from detected sound in at least a portion of an audible spectrum; generating an acceleration signal, from detected acceleration of at least part of the patient'"'"'s body; determining a correlation between the sound signal and the acceleration signal, according to program instructions stored in a computer-readable memory; sending an indicator signal to an output device when the correlation is indicative of at least one of (a) exceeding a threshold value of a severity of asthma, and (b) exceeding a threshold value of a probability of an asthma-related event, wherein the indicator signal results in the output device indicating at least one of the severity of asthma and the probability. - View Dependent Claims (22, 23)
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Specification