Patent ID: 7809528

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 them 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; acquiring a time selected in the trend display graph; 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; and displaying a pathologic event identifier at a position corresponding to a time when a pathologic event takes place.