线性液压脉冲致动器（LHPA）：一种能为小型血管产生模拟血压脉搏波的多功能仪器。

Linear hydraulic pressure-pulse actuator (LHPA): a versatile instrument that produces a simulated blood pressure pulse wave for small sized vessels.

作者信息

Field S, Drzewiecki G

机构信息

Department of Biomedical Engineering, Rutgers University, Piscataway; NJ 08855-0909, USA.

出版信息

IEEE Trans Biomed Eng. 1996 Jun;43(6):663-8. doi: 10.1109/10.495288.

DOI:10.1109/10.495288

PMID:8987273

Abstract

An instrument is presented which produces a simulated circulatory pulsatile pressure wave for small sized vessels. The linear hydraulic pressure-pulse actuator (LHPA) is designed to be extremely versatile, that is, a blood pressure wave source of any shape, amplitude, offset and frequency can be simulated. In addition, the LHPA can reproduce accurately a real pulse pressure wave by simply imputting an actual data record of a circulatory pressure pulse. The design is accomplished by incorporating the use of a linear force solenoid driven with a voltage-to-current source power amplifier. Testing of the device is presented here, as well as pressure pulse results from a recorded pulsatile pressure input to the LHPA. The device is simple to implement in that its response is linear, for volume changes upto +/- 5 mL, without the need for feedback compensation.

摘要

本文介绍了一种为小型血管产生模拟循环脉动压力波的仪器。线性液压压力脉冲致动器（LHPA）设计得极为通用，即可以模拟任何形状、幅度、偏移和频率的血压波源。此外，LHPA只需输入循环压力脉冲的实际数据记录，就能精确再现真实的脉搏压力波。该设计通过使用由电压 - 电流源功率放大器驱动的线性力螺线管来实现。本文展示了该设备的测试情况，以及将记录的脉动压力输入到LHPA后的压力脉冲结果。该设备易于实现，因为其响应是线性的，对于高达±5 mL的体积变化，无需反馈补偿。