Patent ID: 11931131
Assignee: RESMED SENSOR TECHNOLOGIES LIMITED
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 22:
23. A non-transitory computer readable storage medium containing program instructions for causing one or more processors to:
generate respiratory movement data from at least one signal reflected from a subject's body and received by a sensor;
derive a first respiratory parameter from the respiratory movement data;
derive a respiratory effort envelope from the respiratory movement data;
derive a second respiratory parameter from the respiratory effort envelope, wherein the second respiratory parameter comprises an apnea hypopnea index, wherein deriving the apnea hypopnea index comprises comparing an overall amplitude of the respiratory effort envelope to one or more thresholds, and wherein a hypopnea event is detected when the overall amplitude of the respiratory effort envelope is both less than a first predetermined threshold and greater than a second predetermined threshold for a predetermined amount of time;
combine at least the first and second respiratory parameters to determine, using a classifier, a numerical value; and
provide an output pertaining to a health assessment of the subject based on a comparison between the numerical value and a third predetermined threshold.