生理波形流量泵送系统。

Flow pumping system for physiological waveforms.

机构信息

Department of Mechanical Engineering, University of California, Berkeley, Berkeley, CA 94720, USA.

出版信息

Med Biol Eng Comput. 2010 Feb;48(2):197-201. doi: 10.1007/s11517-009-0573-6. Epub 2010 Jan 6.

DOI:10.1007/s11517-009-0573-6

PMID:20052555

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC2807595/

Abstract

A pulsatile flow pumping system is developed to replicate flow waveforms with reasonable accuracy for experiments simulating physiological blood flows at numerous points in the body. The system divides the task of flow waveform generation between two pumps: a gear pump generates the mean component and a piston pump generates the oscillatory component. The system is driven by two programmable servo controllers. The frequency response of the system is used to characterize its operation. The system has been successfully tested in vascular flow experiments where sinusoidal, carotid, and coronary flow waveforms are replicated.

摘要

研制了一种脉动流泵送系统，可在身体多个部位模拟生理血流的实验中，以合理的精度复制血流波形。该系统将流量波形生成任务分配给两台泵：一台齿轮泵生成平均分量，一台活塞泵生成振荡分量。该系统由两个可编程伺服控制器驱动。系统的频率响应用于描述其工作特性。该系统已成功应用于血管流量实验中，复制了正弦波、颈动脉和冠状动脉流量波形。