The present invention relates to a novel non-invasive perfusion/resistance status
monitor system and methods of using the same, and more specifically, a vascular
perfusion status monitor system receiving and processing signals from at least
two pulse oximeter probes, where each of the at least two pulse oximeter probes
are situated at advantageously different locations in a patient. Novel pulse oximeter
probes are configured to be placed, respectively, across the lip or cheek, across
the septum or nares of the nose, and on the tongue. These probes are fabricated
to provide signals to estimate arterial oxygen saturation. Conventional oximeter
probes also can be configured to function according to the novel methods of determining
differences in peripheral blood flow and/or resistance described herein.
