Design and Characterization of an Adjustable Passive Flow Regulator and Application to External CSF Drainage-Reference-Cited by-同舟云学术

Design and Characterization of an Adjustable Passive Flow Regulator and Application to External CSF Drainage

Published:2023-03-19 Issue:3 Volume:14 Page:675
ISSN:2072-666X
Container-title:Micromachines
language:en
Short-container-title:Micromachines

Author:

Chappel Eric¹^ORCID

Affiliation:

1. Microsystems Department, Debiotech SA, 1004 Lausanne, Switzerland

Abstract

Passive valves that deliver a constant flow rate regardless of inlet pressure changes have numerous applications in research, industry, and medical fields. The present article describes a passive spring valve that can be adjusted manually to deliver the required flow rate. The valve consists of a movable rod with an engraved microchannel. The fluidic resistance of the device varies together with the inlet pressure to regulate the flow rate. A prototype was made and characterized. Flow-rate adjustment up to +/−30% of the nominal flow rate was shown. A simple numerical model of the fluid flow through the device was made to adapt the design to external ventricular drainage of cerebrospinal fluid (CSF). Some insights about the implementation of this solution are also discussed.

Publisher

MDPI AG

Subject

Electrical and Electronic Engineering,Mechanical Engineering,Control and Systems Engineering

Link

https://www.mdpi.com/2072-666X/14/3/675/pdf

Reference38 articles.

1. Chappel, E. (2020). A review of Passive Constant Flow Regulators for microfluidic applications. Appl. Sci., 10.

2. Warring, R.H. (1983). Hydraulic Handbook, Gulf Publishing Company.

3. Cundiff, J.S. (2001). Fluid Power Circuits and Controls: Fundamentals and Applications, CRC Press.

4. Park, S., Ko, W., and Prahl, J. (1988, January 6–9). A Constant Flow-Rate Microvalve Actuator Based on Silicon and Micromachining Technology. Proceedings of the IEEE Technical Digest on Solid-State Sensor and Actuator Workshop, Hilton Head Island, SC, USA.

5. Amacker, C., Leung Ki, Y.-S., Pasquier, V., Madore, C., Haller, M., Renaud, P., and White, N. (1998, January 13–16). Passive Micro-Flow Regulator for Drug Delivery System. Proceedings of the Eurosensors XII conference, Southampton, UK.

Cited by 2 articles. 订阅此论文施引文献订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献

1. Design and Implementation of SDN-based Flow Control Middleware;2023 Global Conference on Information Technologies and Communications (GCITC);2023-12-01

2. Physical Properties of Helium and Application in Respiratory Care;Encyclopedia;2023-10-30