@inproceedings{54107a0f1b924684aa1667a8796b74c0,
title = "{\textquotedblleft}Safety Valve{\textquotedblright}: A Metal-Based, Self-Securing Switchable Microvalve for Medical Applications",
abstract = "Drug dosing systems require fail-safety in order to prevent patients{\textquoteright} harm. We present a passive microvalve without external control or energy consumption designed to regulate the flow path of a microfluidic drug dosing system. The metal-based self-securing switchable microvalve for medical applications is experimentally characterized for water flow rates and fluidic resistance. Additionally, we characterize a microfluidic delivery system comprising a piezoelectric micropump in combination with the microvalve for delivered water flow rate and find a maximum of (13.8 ± 0.7) ml/min, as well as fail-safe state leakage rates with an average of (31.8 ± 5) µl/min. Among the manufactured and tested microvalves, several valves exhibit pressure-induced flow obstruction. Dedicated FEM simulations of the flow inside the microvalve show flow field-induced phenomena as reasons for this malfunctioning, which lays the basis for a deeper understanding of the functionality of the component.",
author = "C. Durasiewicz and W. H{\"o}lzl and G. Schrag",
note = "Publisher Copyright: {\textcopyright} VDE VERLAG GMBH · Berlin · Offenbach; MikroSystemTechnik Kongress 2021: Mikroelektronik, Mikrosystemtechnik und ihre Anwendungen - Innovative Produkte fur zukunftsfahige Markte - MikroSystemTechnik Congress 2021: Microelectronics, Microsystems Engineering and their Applications - Innovative Products for Future-Oriented Markets ; Conference date: 08-11-2021 Through 10-11-2021",
year = "2021",
language = "English",
series = "MikroSystemTechnik Kongress 2021: Mikroelektronik, Mikrosystemtechnik und ihre Anwendungen - Innovative Produkte fur zukunftsfahige Markte, Proceedings",
publisher = "VDE VERLAG GMBH",
pages = "216--219",
booktitle = "MikroSystemTechnik Kongress 2021",
}