Fractional oxygen saturation monitoring and pathological changes detection method for patient`s cardiovascular circulation system, involves evaluating photoplethysmogram signals, and deriving parameters interpreted for doctor from signals

摘要

The method involves evaluating photoplethysmogram (PPG) signals by a signal-connected computing unit with photoplethysmogram sensors, which are designed as transmission sensors and reflection sensors. Diagnostic parameters interpretable for a doctor are derived from the PPG signals by the computing unit. A continuous blood pressure measurement is also carried out in a patient (2) by using a blood pressure sensor (4). An independent claim is also included for a multi-sensor for non invasive monitoring of fractional oxygen saturation and detection of pathological changes in a cardiovascular circulation system by simultaneous detection of different optical Photoplethysmogram signal using Photoplethysmography sensors.