TY - JOUR
T1 - An archetypal model of a breathable air-circuit in an electro-pneumatic ventilator device
AU - Ige, Ebenezer Olubunmi
AU - Adetunla, Adedotun
AU - Amudipe, Samuel Olufemi
AU - Adeoye, Adeyinka
AU - Glucksberg, Matthew
N1 - Funding Information:
Authors are grateful to the Chancellor and the Authorities of Afe Babalola University Ado-Ekiti (ABUAD) for providing the research facilities. SOA is thankful to the management of FESTO Automation Centre at ABUAD for granting permission and access to the facilities used for this research.
Publisher Copyright:
© 2022 The Author(s)
PY - 2022/5
Y1 - 2022/5
N2 - Mechanical ventilator is a machine that is mechanically designed to deliver breathable air in and out of the lungs to provide a breathing mechanism for a patient who is physically unable to breathe, it is an indispensable life-support device in critical care medicine and medical emergencies such as scenarios during the COVID-19 pandemic. This research presents a model design of the pneumatic circuit that is electronically controlled, by using computer-aided pneumatic rig over selected 5/3, 5/2, 3/2 solenoid gating valves, the performance of these valves must be investigated to ascertain the most appropriate valve to be used for the electro-pneumatic mechanical ventilator. An elaborate parametric investigation reported for volume-controlled ventilators illustrate the influences of key parameters on the dynamics of the ventilated respiratory system. This study presents the linearity of tidal volume, peak pressure and lung compliance for the parameters considered. However, the maximum pressure of the ventilation device increases slowly when the tidal volumes exceed 600 ml. In addition, influence of evacuation time of the ventilator predicted over high throughput in time regimes of 1 s; 1.2 s; 1.4 s; 1.6 s, and 1.8 s showed that the pressure platform in the pipe might not appear if the exhaust time of the ventilator is less than 1.6 s. The 5/2 solenoid valve was considered the best with consistent flowrate. The archetypal model of the pneumatic circuit developed in this research could find vital application in the design of patient-interfacing devices particularly in ventilators and neonatal incubator.
AB - Mechanical ventilator is a machine that is mechanically designed to deliver breathable air in and out of the lungs to provide a breathing mechanism for a patient who is physically unable to breathe, it is an indispensable life-support device in critical care medicine and medical emergencies such as scenarios during the COVID-19 pandemic. This research presents a model design of the pneumatic circuit that is electronically controlled, by using computer-aided pneumatic rig over selected 5/3, 5/2, 3/2 solenoid gating valves, the performance of these valves must be investigated to ascertain the most appropriate valve to be used for the electro-pneumatic mechanical ventilator. An elaborate parametric investigation reported for volume-controlled ventilators illustrate the influences of key parameters on the dynamics of the ventilated respiratory system. This study presents the linearity of tidal volume, peak pressure and lung compliance for the parameters considered. However, the maximum pressure of the ventilation device increases slowly when the tidal volumes exceed 600 ml. In addition, influence of evacuation time of the ventilator predicted over high throughput in time regimes of 1 s; 1.2 s; 1.4 s; 1.6 s, and 1.8 s showed that the pressure platform in the pipe might not appear if the exhaust time of the ventilator is less than 1.6 s. The 5/2 solenoid valve was considered the best with consistent flowrate. The archetypal model of the pneumatic circuit developed in this research could find vital application in the design of patient-interfacing devices particularly in ventilators and neonatal incubator.
KW - Electro-pneumatic
KW - Mechanical ventilator
KW - On-delay timer
KW - Solenoid valve
KW - Tidal volume
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U2 - 10.1016/j.heliyon.2022.e09378
DO - 10.1016/j.heliyon.2022.e09378
M3 - Article
C2 - 35529703
AN - SCOPUS:85129625098
VL - 8
JO - Heliyon
JF - Heliyon
SN - 2405-8440
IS - 5
M1 - e09378
ER -