Patent ID: 9675268
Date: 2017-06-13
CPC Classifications: A61B

Claim:
1. An external-only method for detecting and differentiating a sleeping subject's manifestations of sleep-disordered breathing comprising attaching a single, three-axis accelerometer to a subject's chest, acquiring data from the three axis accelerometer during a subject-recording period, identifying, based on accelerometer data, sleep times during the subject-recording period when the subject is asleep, and generating, based on accelerometer data, a wake summary, during the identified sleep times, utilizing solely the attached accelerometer, simultaneously collecting, externally-only, sleeping-subject-specific, three-axis, vector-mechanical accelerometer data, filtering the accelerometer data through five independent facet-specific signal filters outside the subject to generate components specific to (a) heart sounds, (b) body position, (c) body activity, (d) snoring, and (e) chest-movement-based respiration, collecting sleeping-subject-specific ECG data outside the subject, and generating a sleep summary based on the wake summary including processing and analyzing the components of the accelerometer data and the ECG data outside the subject, to detect and differentiate the presences of (a) sleep-disordered breathing generally, (b) sleep apnea generally, (c) differentiated central and obstructive sleep apnea specifically, and (d) hypopnea specifically.