This invention relates to a measurement method and device for real-time continuous pressure of fluctuating fluid in elastic tube and dynamic compliance of elastic tube, which determines two pressures of DC and AC pressures needed for decoupling control after searching for the critical depth of the elastic tube, and makes the elastic tube to be measured and other surrounding tissues decoupled by using the displacements of a DC actuator and an AC actuator respectively, wherein the DC actuator is used for maintaining the DC pressure and obtaining the impedance of the surrounding tissues other than the elastic tube to be measured and the AC actuator is used for tracing the AC pressure with the steps of estimating reference pressure, identifying impedance of the elastic tube to be measured, and calculating gain of controller in a manner of trace-stop control and adaptive rule, thereby measuring the actual displacement variation and the dynamic impedance of the elastic tube to be measured under DC pressure of the fluid, so as to calculate the real-time continuous pressure of the fluid in elastic tube and the dynamic compliance of a single pulse of the elastic tube to be measured. This invention is constituted accordingly.本發明為一種波動流體於彈性管內之即時性連續壓力及彈性管動態順應性量測方法及裝置,透過搜尋彈性管之臨界深度後,決定在解耦控制時所需之直流與交流兩部分壓力,並分別以直流致動器與交流致動器的位移,而使待測彈性管與其他周圍組織造成解耦的情況,其中直流致動器用以維持直流壓力,並獲得待測彈性管以外周圍組織之阻抗;而交流致動器則以追-停控制及自適應法則的方式估測參考壓力、識別待測彈性管阻抗、計算控制器增益等步驟來追蹤交流壓力,進而測得待測彈性管於流體交流壓力下實際之位移變化及其動態阻抗,以計算出彈性管內流體之即時連續壓力及待測彈性管單獨脈動之動態順應性,藉此構成本發明。
