Acoustic sensor and ventilation monitoring system
AssigneesThomas Jefferson University, RTM Vital Signs LLC
InventorsJeffrey I Joseph, Noud Van Helmond, Marc C Torjman, Denise L Devine, Nance K Dicciani, Channy Loeum
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Abstract
A method of monitoring respiration with an acoustic measurement device, the acoustic measurement device having a sound transducer, the sound transducer configured to measure sound associated with airflow through a mammalian trachea, the method includes correlating the measured sound into a measurement of tidal volume and generating at least one from the group consisting of an alert and an alarm if the measured tidal volume falls outside of a predetermined range.
Claims17
A method of monitoring respiration using an acoustic measurement device, the acoustic measurement device being configured to measure sound vibrations associated with airflow through a mammalian trachea, the method comprising:
- correlating the measured sound vibrations into a measurement of tidal volume and respiratory rate;
- calculating, at a first time interval, at least one selected from the group consisting of an absolute tidal volume, a direction of tidal volume, a rate of change of tidal volume, and a duration of time that the measured tidal volume deviates from a predetermined range;
- and
- correlating the at least one selected from the group consisting of the absolute tidal volume, the direction of tidal volume, the rate of change of tidal volume, and the duration of time that the measured tidal volume deviates from the predetermined range, to a risk score defined on a predefined scale.
A method of monitoring respiration using an acoustic measurement device configured to measure sound vibrations associated with airflow through a mammalian trachea, the method comprising:
- correlating the measured sound vibrations into a measurement of tidal volume and respiratory rate;
- filtering out a set of anomalous data and ambient noise from the measured sound vibrations;
- calculating at least one selected from the group consisting of absolute tidal volume, a direction of tidal volume, a rate of change of tidal volume, a duration of time that the measured tidal volume deviates from a predetermined range;
- correlating the at least one selected from the group consisting of the absolute tidal volume, the direction of tidal volume, the rate of change of tidal volume, and the duration of time that the measured tidal volume deviates from the predetermined range to a risk score on a predefined scale;
- and
- generating an alert if the risk score correlated to the at least one selected from the group consisting of the absolute tidal volume, the direction of tidal volume, the rate of change of tidal volume, and the duration of time that the measured tidal volume deviates from the predetermined range, deviates from a predetermined risk threshold.
Dependencies are inferred from the claim text.