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.
Claims12
A method of monitoring respiration 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 comprising:
- correlating the measured sound into a measurement of tidal volume;
- calculating an absolute tidal volume, a direction of tidal volume, and a rate of change of tidal volume;
- assigning a risk index value to each of the absolute tidal volume, the direction of tidal volume, and the rate of change of tidal volume, each risk index value being one selected from the group consisting of a positive score and a negative score based on a predefined scale;
- calculating a sum of the risk index values assigned to each of the absolute tidal volume, the direction of tidal volume, and the rate of change of tidal volume;
- and
- generating at least one selected from the group consisting of an alert and an alarm if the calculated sum exceeds a predetermined risk score threshold.
Dependencies are inferred from the claim text.