Acoustic based cough detection
First Claim
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1. A method comprising:
- receiving an acoustic signal from an acoustic sensor implanted in a patient;
receiving a patient activity signal from an activity sensor implanted in the patient;
analyzing the acoustic signal in combination with the patient activity signal;
determining whether a cough has occurred based on the analysis of the acoustic signal in combination with the patient activity signal;
determining a severity of the cough based on the analysis of the acoustic signal and the patient activity signal; and
incrementing a cough index by an amount that is determined based on the severity of the cough.
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Abstract
The present disclosure is directed to the detection of coughs and coughing episodes using acoustic signals. In various examples, an implantable medical device processes an acoustic signal obtained from an acoustic sensor to determine whether a patient has coughed. In some examples, the implantable medical device also performs a cough severity assessment. In some examples, the cough severity assessment may include a determination of the depth of the cough, the duration of the coughing episode, or whether the cough was wet or dry.
59 Citations
29 Claims
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1. A method comprising:
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receiving an acoustic signal from an acoustic sensor implanted in a patient; receiving a patient activity signal from an activity sensor implanted in the patient; analyzing the acoustic signal in combination with the patient activity signal; determining whether a cough has occurred based on the analysis of the acoustic signal in combination with the patient activity signal; determining a severity of the cough based on the analysis of the acoustic signal and the patient activity signal; and incrementing a cough index by an amount that is determined based on the severity of the cough. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A system comprising:
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a cough analyzer configured to; receive an acoustic signal from an acoustic sensor, receive a patient activity signal from an activity sensor, and analyze the acoustic signal in combination with the patient activity signal; and a processor configured to; determine whether a cough has occurred based on the analysis of the acoustic signal in combination with the patient activity signal; provide a cough severity assessment based on the analysis of the acoustic signal in combination with the patient activity signal; and increment a cough index by an amount that is determined based on the severity of the cough. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A system comprising:
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means for receiving an acoustic signal from an acoustic sensor; means for receiving a patient activity signal from an activity sensor; means for analyzing the acoustic signal in combination with the patient activity signal; means for determining whether a cough has occurred based on the analysis of the acoustic signal in combination with the patient activity signal; means for analyzing the acoustic signal and the patient activity signal to provide a cough severity assessment; and means for incrementing a cough index by an amount that is determined based on the severity of the cough.
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Specification