Patent ID: 11864928
Assignee: CARDIAC PACEMAKERS, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 11:
12. A method for detecting a respiratory anomaly in a patient using a respiratory disease management system, the method comprising:
sensing, via an ambulatory or implantable physiological sensor including an accelerometer, one or more physiological signals indicative of respiratory sounds including an acceleration signal sensed by the accelerometer;
performing spectral analysis, via a spectral analyzer, on the sensed one or more physiological signals to generate a first spectral content of respiratory sounds within a first frequency band and a second spectral content of respiratory sounds within a second frequency band, the second frequency band having a higher center frequency than the first frequency band;
receiving at least one physiological parameter of the patient different from the first and the second spectral contents, the received at least one physiological parameter including a blood pressure parameter;
calculating a correlation between (i) a change in at least one of the first spectral content or the second spectral content over time and (ii) a change in the received at least one physiological parameter including a change in the blood pressure parameter over time;
generating a respiratory anomaly indicator using the calculated correlation, the respiratory anomaly indicator indicating a status of chronic obstructive pulmonary disease (COPD) or asthma of the patient; and
providing the respiratory anomaly indicator to a user or a process.