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Physiological acoustic monitoring system

  • US 9,867,578 B2
  • Filed: 07/07/2016
  • Issued: 01/16/2018
  • Est. Priority Date: 10/15/2009
  • Status: Active Grant
First Claim
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1. A method of generating synthetic physiological sound responsive to a signal detected by an acoustic sensor attached to a patient, the method comprising:

  • processing, at a patient monitor, a signal from an acoustic sensor responsive to a piezoelectric modulation of the acoustic sensor;

    detecting envelope features in the processed signal responsive to a periodic physiological process;

    generating an idealized envelope based on the detected envelope features;

    comparing the signal with sound signatures corresponding to physiological sounds stored in a first data repository;

    detecting a physiological event from the processed signal based on the comparison of the signal with the sound signatures; and

    generating a synthetic physiological sound comprising a first sound corresponding to the generated idealized envelope and a second sound corresponding to a portion of the processed signal with the detected physiological event.

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