Computational Modeling of a Low‐Cost Fluidic Oscillator for Use in an Educational Respiratory Simulator
| Autor: | Samuel Dutra Gollob, Ellen T. Roche, Keegan Mendez, Tom Dillon, Luca Rosalia, Katharina Kempf, Caglar Ozturk |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Computer science
medicine.medical_treatment Positive pressure computational fluid dynamics mechanical ventilation Computational fluid dynamics Fluidic oscillator Mechanical ventilator COVID‐19 Medical technology medicine Fluidics Electronics Continuous positive airway pressure R855-855.5 Research Articles Simulation General Environmental Science Mechanical ventilation education business.industry fluidic oscillators respiratory General Earth and Planetary Sciences business TP248.13-248.65 fluidic oscillator Biotechnology Research Article |
| Zdroj: | Advanced Nanobiomed Research Advanced NanoBiomed Research, Vol 1, Iss 12, Pp n/a-n/a (2021) |
| ISSN: | 2699-9307 |
| DOI: | 10.1002/anbr.202000112 |
| Popis: | This paper presents the computational fluidic modeling of a fluidic oscillator for the conversion of continuous positive airway pressure (CPAP) machines into emergency pressure support mechanical ventilators by providing a periodic pressure output to patients. The design addresses potential ventilator shortages resulting from the ongoing COVID‐19 pandemic, or future pandemics by converting a positive pressure source into a mechanical ventilator with a part that is (i) inexpensive, (ii) easily manufactured without the need for specialized equipment, (iii) simple to assemble and maintain, (iv) does not require any electronics, and (v) has no moving components that could be prone to failure. A Computational Fluid Dynamics (CFD) model is used to assess flow characteristics of the system, and a prototype is developed and tested with a commercial benchtop respiratory stimulator. The simulations show clinically relevant periodic oscillation with outlet pressures in the range of 8‐20 cmH2O and end‐user‐tunable frequencies in the range of 3‐6 seconds (respiratory rate (RR) of 10‐20 breaths per minute). The prototype can respond to disrupted oscillations, an analogue for patient‐initiated breaths. The fluidic oscillator presented here functions at physiologically‐relevant pressures and frequencies, demonstrating potential as a low‐cost, readily deployable means for converting CPAP machines into emergency use ventilators. This article is protected by copyright. All rights reserved. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text