Patent ID: 8000937

Claim:
A method used in an apparatus for waveform analysis of physiological parameters, the apparatus including a physiological parameter acquisition unit and a display device, the method comprising: reading, using the physiological parameter acquisition unit, measurement values and corresponding times of a first physiological parameter, and displaying a plurality of variations in the measurement values of the first physiological parameter over time as a trend display graph in a trend display area of the display device, the trend display area comprising a first coordinate and a second coordinate that represent the times and the measurement values, respectively, wherein displaying the plurality of variations in the measurement values with respect to the second coordinate in the trend display area indicates a trend in the first physiological parameter throughout a monitoring period; acquiring a time selected in the trend display graph; and displaying, in a waveform display area of the display device, waveform data of a second physiological parameter associated with the formation of the first physiological parameter during predetermined periods before and after the selected time, the waveform display area comprising time coordinates representing waveform time.