Lin Albert Chin-Yuh, Huang Huang-Nan, Su Yi-Chang, Shiu Chih-Yuan, Wang Yao-Horng, Chiang Hao-Cheng, Tung Hung, Lin Jui-Shan
Department of Automatic Control Engineering, Feng Chia University, Taichung, Taiwan 407, Republic of China.
Physiol Meas. 2007 Aug;28(8):937-51. doi: 10.1088/0967-3334/28/8/015. Epub 2007 Jul 30.
This paper presents a non-invasive approach to measuring the instantaneous arterial blood pressure based upon the tissue control method. According to animal experiments, there exists a pressed location where the mean blood pressure in the artery is equivalent to the mean pressure measured on the skin. At this location, the stiffness measured on the skin is equivalent to the stiffness of the tissue only. By means of the tissue control method, the pulsations of the artery are excluded from tissues. The displacement measured on the skin and the tracking pressure obtained from the controller identify the dynamical impedance of the blood vessel, and then estimate the instantaneous intra-arterial blood pressure. The experimental results show that errors of mean blood pressure, systolic blood pressure and diastolic blood pressure are less than 4%, and indicate that the tissue control method is a feasible way to detect the instantaneous arterial blood pressure.
本文提出了一种基于组织控制方法的无创测量瞬时动脉血压的方法。根据动物实验，存在一个受压位置，在此位置动脉中的平均血压与在皮肤上测得的平均压力相等。在这个位置，在皮肤上测得的刚度仅等同于组织的刚度。通过组织控制方法，动脉的搏动从组织中被排除。在皮肤上测得的位移和从控制器获得的跟踪压力确定了血管的动态阻抗，进而估计瞬时动脉内血压。实验结果表明，平均血压、收缩压和舒张压的误差小于4%，这表明组织控制方法是检测瞬时动脉血压的一种可行方法。
