NON-INVASIVE MONITORING OF RESPIRATORY RATE, HEART RATE AND APNEA
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Abstract
A method and apparatus for estimating a respiratory rate of a patient. The method comprises the steps of recording respiratory sounds of the patient, deriving a plurality of respiratory rates from the recorded sounds using a plurality of respiratory rate estimating methods and applying a heuristic to the plurality of derived respiratory rates, the heuristic selecting one of the derived respiratory rates. The selected respiratory rate is the estimated respiratory rate. The apparatus comprises at least one sensor recording respiratory sounds of the patient, a plurality of respiratory rate processors, each of the processors comprising a respiratory rate calculating method, a heuristic means for selecting one of the calculated respiratory rates and a display means for displaying the selected respiratory as the estimated respiratory rate.
444 Citations
40 Claims
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1-20. -20. (canceled)
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21. A method for estimating a respiratory rate of a patient, the method comprising:
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receiving respiratory sound data from at least one acoustic sensor, the respiratory sound data representing respiratory sounds of a patient; deriving a plurality of respiratory rates from the respiratory sound data with a processor using a plurality of different respiratory rate estimating methods, wherein the plurality of different respiratory rate estimating methods comprises at least one time domain method and at least one frequency domain method; and determining an estimated respiratory rate based at least in part on the plurality of respiratory rates; and outputting the estimated respiratory rate. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. An apparatus for estimating a respiratory rate of a patient, the apparatus comprising:
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an input configured to receive respiratory sound data from at least one acoustic sensor, the respiratory sound data representing respiratory sounds of a patient; and a processor configured to; derive a plurality of respiratory rates from the respiratory sound data using a plurality of different respiratory rate estimating methods, wherein the plurality of different respiratory rate estimating methods comprises at least one time domain method and at least one frequency domain method; determine an estimated respiratory rate based at least on the plurality of respiratory rates; and output the estimated respiratory rate. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40)
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Specification