Detection and Monitoring of Stress Events During Sleep
AssigneeWidemed Ltd.
InventorDaniel Reisfeld
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Abstract
A computer-implemented method for monitoring a patient (22) includes receiving physiological signals from the patient during sleep and processing at least one of the signals to detect a spontaneous stress event. One or more of the signals following the stress event are analyzed so as to evaluate a stress response of the patient.
Claims44
A computer-implemented method for monitoring a patient, comprising:
- receiving a signal associated with respiration of the patient during sleep;
- processing the signal to detect a pattern of periodic breathing;
- extracting from the signal a shape characteristic of the pattern;
- and
- classifying an etiology of the periodic breathing responsively to the shape characteristic.
A computer-implemented method for monitoring a patient, comprising:
- receiving physiological signals from the patient during sleep;
- processing at least one of the signals to detect a spontaneous stress event;
- and
- analyzing one or more of the signals following the stress event so as to evaluate a stress response of the patient.
Apparatus for monitoring a patient, comprising:
- a sensor, which is coupled to produce a signal associated with respiration of the patient during sleep;
- and
- a diagnostic processor, which is arranged to process the signal to detect a pattern of periodic breathing, to extract from the signal a shape characteristic of the pattern, and to classify an etiology of the periodic breathing responsively to the shape characteristic.
27 The apparatus according to claim 22, wherein the sensor comprises a photoplethysmographic sensor.
The apparatus according to claim 27, and comprising a belt, which is configured to hold the photoplethysmographic sensor and to be fastened around the patient, wherein the photoplethysmographic sensor comprises a reflective photoplethysmographic sensor, which is arranged to measure at least one of a blood flow and a blood oxygen saturation level of the patient, and the sensor is also coupled to the belt so as to measure a respiratory movement of the patient using the belt.
Apparatus for monitoring a patient, comprising:
- a sensor, which is coupled to receive physiological signals from the patient during sleep;
- and
- a diagnostic processor, which is arranged to process at least one of the signals to detect a spontaneous stress event, and to analyze one or more of the signals following the stress event so as to evaluate a stress response of the patient.
Apparatus for monitoring a patient, comprising:
- a belt, which is adapted to be fastened around a body of the patient;
- and
- a sensor unit, which is coupled to the belt so as to sense a respiratory motion of the patient, and which comprises a photoplethysmographic sensor, which is held against the body by the belt and is arranged to measure at least one of a blood flow and a blood oxygen saturation level of the patient.
Dependencies are inferred from the claim text.