INSTRUMENT FOR MEASURING INDEX OF VISCOELASTICITY OF BLOOD VESSEL

摘要

The present invention is directed to provide an apparatus for measuring a vascular viscoelasticity index which is noninvasive, simple in structure and yet inexpensive. The present invention provides an apparatus for measuring a vascular viscoelasticity index, which measures a vascular viscoelasticity index ±by a formula ± = {(Pb2-Pa2) - (Pb1-Pa1)} / (Va2-Va1) wherein Pb1 is the maximal value of the first pulse wave; Va1 is the local maximum value of a time derivative value of the first pulse wave; Pa1 is the pulse wave amplitude corresponding to the local maximum value Va1; Pb2 is the maximal value of the second pulse wave; Va2 is the local maximum value of a time derivative value of the second pulse wave; and Pa2 is the pulse wave amplitude corresponding to the local maximum value Va2.