Abstract
This note describes the design and testing of a programmable pulsatile flow pump using an Arduino micro-controller. The goal of this work is to build a compact and affordable system that can relatively easily be programmed to generate physiological waveforms. The system described here was designed to be used in an in-vitro set-up for vascular access hemodynamics research, and hence incorporates a gear pump that delivers a mean flow of 900 ml/min in a test flow loop, and a peak flow of 1106 ml/min. After a number of simple identification experiments to assess the dynamic behaviour of the system, a feed-forward control routine was implemented. The resulting system was shown to be able to produce the targeted representative waveform with less than 3.6% error. Finally, we outline how to further increase the accuracy of the system, and how to adapt it to specific user needs.
Original language | English |
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Pages (from-to) | 67-71 |
Number of pages | 5 |
Journal | Medical Engineering and Physics |
Volume | 51 |
DOIs | |
Publication status | Published - Jan 2018 |
Keywords
- Arduino
- Feed forward control
- Hemodynamics
- In-vitro
- Pulsatile flow pump