Device for extraction of peaks from continuous intracranial pressure waveform and detection method for the same

A peak extracting device for extracting a peak of an intracranial pressure (ICP) waveform using a morphological feature of an arterial blood pressure waveform (ABP), the peak detection device comprising:

• a memory;
• and
• a processing unit configured to:
• receive the arterial blood pressure waveform and the ICP waveform from a sensor unit and converts the arterial blood pressure waveform and ICP waveform into digital data to store the digital data in the memory,
• extract a pulse onset from the ICP waveform based on a systolic peak of the arterial blood pressure waveform,
• divide individual ICP waveforms in the ICP waveform based on the pulse onset and a next pulse onset,
• derive a derivative value from each of the individual ICP waveforms to extract a peak, a trough, and a flat to calculate a latency of the peak extracted from the pulse onset extracted from each of the individual ICP waveforms to cluster peaks with similar time intervals and generate a peak cluster,
• search an ICP notch from each of the individual ICP waveforms based on a latency of an ABP dicrotic notch of the arterial blood pressure waveform, and
• extract P1, P2, and P3 peaks from each of the individual ICP waveforms based on the ICP notch of the ICP waveform.