Depth of anesthesia monitor

Details Depth of anesthesia monitor Depth of anesthesia monitor

1998-09-21

2000-09-12

Nasser, Robert L.

Surgery

Diagnostic testing

600485, 600500, 600549, 600561, A61B 500

Patent

active

061170755

ABSTRACT:
A method and device for determining the depth of anesthesia. A pattern of very low frequency oscillations in measured skin temperature, or photoplethysmographic pulse pressure, is defined and analyzed. The frequency bandwidth of a frequency domain analysis of the oscillatory pattern, or the correlation between simultaneous oscillatory patterns measured at different physical locations, are used separately or fused to obtain an index of depth of anesthesia.

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