作者: Frank H. Erdman
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摘要: A non-invasive method and apparatus for sensing relative blood conditions in extremities, such as using photoelectric dermachromography to measure differential flow and/or pooling between the purpose of diagnosing cardiovascular conditions. Reflective colorimeters are employed performing comparative light reflection rheology (LRR). The resting, steady-state LRR both left right palms simultaneously measured when arms a raised, condition, again lowered, thereby providing repeatable measurement overall vasomotor tone, tone smooth muscles arterial walls. Two portable gauges used, each including plurality sources light-emitting diodes (LEDs) arranged around at least one detector. Each gauge is removably attachable hands patient whose be determined. attached so that movable, measurements taken substantially UP then while DOWN condition. After series these taken, switched another with reversed taken. independently calibrated by standardized reference scales.