This invention regards the manner which measures contraction phase blood pressure Psyst in the bloodlessness. As for this manner,It is larger than contraction phase blood pressure Psyst vis-a-vis the 1st field 5 of the finger 2 which is categorized near the - terminal part 3, the process which it impresses and maintains convergence Characteristic discharge pressure P1 and,It is larger than contraction phase blood pressure Psyst vis-a-vis the 2nd field 8 of the finger 2 where the - 1st field 5 is located high-level, the process which it impresses and maintains convergence Characteristic blockade pressure P2 and,The process which opens - discharge pressure P1 and,Under - controlling the process which acquires the cubic measure Vs of the blood which opens blockade pressure P2, simultaneously, at least blockade pressure P2 and in the 1st field 5 time-dependant and,The process which calculates contraction phase blood pressure Psyst according to the blockade pressure P2 when recovering the blood current which is displayed due to the fact that cubic measure Vs of the blood in the 1st field 5 of - finger 2 fluctuates plus substantially, in finger 2, and, it includes.< Choice figure > Drawing 1本発明は、非観血的に収縮期血圧Psystを測定する方法に関する。この方法は、-末端部分3の付近に位置する指2の第1領域5に対して、収縮期血圧Psystよりも大きい、収斂性の排出圧力P1を印加および維持する工程と、-第1領域5の上流に位置する指2の第2領域8に対して、収縮期血圧Psystよりも大きい、収斂性の閉塞圧力P2を印加および維持する工程と、-排出圧力P1を開放する工程と、-制御下で閉塞圧力P2を開放し、同時に、少なくとも閉塞圧力P2および第1領域5における血液の体積Vsを経時的に取得する工程と、-指2の第1領域5における血液の体積Vsが実質的にプラスに変動することによって表される、指2における血流の回復時の閉塞圧力P2に応じて、収縮期血圧Psystを計算する工程と、を含む。【選択図】 図1
