Apparatus for photoelectric dermachromography

摘要: A method and apparatus for detecting occlusions in one of the internal carotid arteries by differential sensing epidermal blood flow supraorbital areas. pair photoelectric transducers that sense relative absorption or reflection light at surface skin as an indication are positioned over notches above eyes. The contributions to these areas from superficial temporal, angular occipital eliminated compression, leaving carotids only suppliers. sensor outputs then compared, any unbalance indicates occlusion arteries. Same may also be detected momentarily compressing well, comparing refilling curves produced sensors. location below bifurcation determined removing all compression repositioning external flows.