Design and evaluation of a mechanical ventilator
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , |
Tipo de documento: | preprint |
Idioma: | spa |
Título da fonte: | SciELO Preprints |
Texto Completo: | https://preprints.scielo.org/index.php/scielo/preprint/view/1770 |
Resumo: | This paper describes the design and prototyping of a low cost (under 2500 USD), high precision (error percentage lower than 5%) mechanical ventilator in response to the global demand for this equipment. The ventilator is designed to deliver continuous mandatory ventilation (CMV) in two forms: volumen controlled (V-CMV) and pressure controlled (P-CMV), and pressure support ventilation (PSV). CMV inspiration triggering can be assisted or controlled, which in combination results in five different ventilation modes. It's construction is based on industrial devices, high precision machined parts and standard clinical ventilation elements.The prototype’s mechanism consists of a piston-cylinder system driven by a stepper motor and connected by a lead screw and nut. The distance and velocity of the piston displacement is defined by the quantity and frequency of electronic signal pulses from the programmed control system. The piston movement displaces a mix of air and medical oxygen to the patient.The prototype's V-CMV mode has been tested on an electronic lung to simulate the response of a real organ in typical conditions. As a result an average error of 3% was obtained. Further upgrades are suggested for performance optimization, pre-clinical tests and clinical validation. |
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Design and evaluation of a mechanical ventilatorDiseño y evaluación de un ventilador mecánicoSARS-COV-2COVID-19PeruMechanical ventilationindustrial componentsSARS-COV-2COVID-19PerúVentilación mecánicaComponentes industrialesThis paper describes the design and prototyping of a low cost (under 2500 USD), high precision (error percentage lower than 5%) mechanical ventilator in response to the global demand for this equipment. The ventilator is designed to deliver continuous mandatory ventilation (CMV) in two forms: volumen controlled (V-CMV) and pressure controlled (P-CMV), and pressure support ventilation (PSV). CMV inspiration triggering can be assisted or controlled, which in combination results in five different ventilation modes. It's construction is based on industrial devices, high precision machined parts and standard clinical ventilation elements.The prototype’s mechanism consists of a piston-cylinder system driven by a stepper motor and connected by a lead screw and nut. The distance and velocity of the piston displacement is defined by the quantity and frequency of electronic signal pulses from the programmed control system. The piston movement displaces a mix of air and medical oxygen to the patient.The prototype's V-CMV mode has been tested on an electronic lung to simulate the response of a real organ in typical conditions. As a result an average error of 3% was obtained. Further upgrades are suggested for performance optimization, pre-clinical tests and clinical validation.En respuesta al actual déficit a escala mundial de ventiladores mecánicos causado por el COVID-19, se ha desarrollado un prototipo de ventilador mecánico de bajo costo (aproximadamente 2500 USD) y alta precisión (error menor a 5%). Este equipo permite realizar ventilación mandatoria continua (CMV) controlada por volumen (V-CMV), por presión (P-CMV) y ventilación con presión soporte (PSV). Bajo la CMV se puede trabajar con disparo asistido y controlado; lo que, en combinación, suma un total de cinco modos de ventilación. Su construcción se basa en el uso de componentes comerciales de gama industrial, piezas mecanizadas con alta precisión y elementos de circuitos de ventilación clínica estándar.El mecanismo del prototipo consta de un cilindro dentro del cual se desplaza un émbolo accionado por un motor paso a paso. Esto se logra a través de un sistema de transmisión compuesto por un tornillo sin fin y una tuerca. Dependiendo de la cantidad y frecuencia de los pulsos eléctricos emitidos por el sistema de control, se define el avance y velocidad del émbolo. De este modo, el émbolo desplaza la mezcla de aire y oxígeno hacia el paciente.El prototipo fue evaluado en modo V-CMV mediante pruebas de laboratorio con un pulmón electrónico, que simula las condiciones de operación típicas. Como resultado se obtuvo un error promedio del 3% de las variables de funcionamiento del equipo.SciELO PreprintsSciELO PreprintsSciELO Preprints2021-02-01info:eu-repo/semantics/preprintinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://preprints.scielo.org/index.php/scielo/preprint/view/177010.1590/SciELOPreprints.1770spahttps://preprints.scielo.org/index.php/scielo/article/view/1770/2836Copyright (c) 2021 Oscar Heredia, Xiomara Chunga, Lewis De La Cruz, Mirko Zimichttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessHeredia, Oscar Chunga, XiomaraDe La Cruz, LewisZimic, Mirkoreponame:SciELO Preprintsinstname:SciELOinstacron:SCI2021-01-26T20:20:50Zoai:ops.preprints.scielo.org:preprint/1770Servidor de preprintshttps://preprints.scielo.org/index.php/scieloONGhttps://preprints.scielo.org/index.php/scielo/oaiscielo.submission@scielo.orgopendoar:2021-01-26T20:20:50SciELO Preprints - SciELOfalse |
dc.title.none.fl_str_mv |
Design and evaluation of a mechanical ventilator Diseño y evaluación de un ventilador mecánico |
title |
Design and evaluation of a mechanical ventilator |
spellingShingle |
Design and evaluation of a mechanical ventilator Heredia, Oscar SARS-COV-2 COVID-19 Peru Mechanical ventilation industrial components SARS-COV-2 COVID-19 Perú Ventilación mecánica Componentes industriales |
title_short |
Design and evaluation of a mechanical ventilator |
title_full |
Design and evaluation of a mechanical ventilator |
title_fullStr |
Design and evaluation of a mechanical ventilator |
title_full_unstemmed |
Design and evaluation of a mechanical ventilator |
title_sort |
Design and evaluation of a mechanical ventilator |
author |
Heredia, Oscar |
author_facet |
Heredia, Oscar Chunga, Xiomara De La Cruz, Lewis Zimic, Mirko |
author_role |
author |
author2 |
Chunga, Xiomara De La Cruz, Lewis Zimic, Mirko |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Heredia, Oscar Chunga, Xiomara De La Cruz, Lewis Zimic, Mirko |
dc.subject.por.fl_str_mv |
SARS-COV-2 COVID-19 Peru Mechanical ventilation industrial components SARS-COV-2 COVID-19 Perú Ventilación mecánica Componentes industriales |
topic |
SARS-COV-2 COVID-19 Peru Mechanical ventilation industrial components SARS-COV-2 COVID-19 Perú Ventilación mecánica Componentes industriales |
description |
This paper describes the design and prototyping of a low cost (under 2500 USD), high precision (error percentage lower than 5%) mechanical ventilator in response to the global demand for this equipment. The ventilator is designed to deliver continuous mandatory ventilation (CMV) in two forms: volumen controlled (V-CMV) and pressure controlled (P-CMV), and pressure support ventilation (PSV). CMV inspiration triggering can be assisted or controlled, which in combination results in five different ventilation modes. It's construction is based on industrial devices, high precision machined parts and standard clinical ventilation elements.The prototype’s mechanism consists of a piston-cylinder system driven by a stepper motor and connected by a lead screw and nut. The distance and velocity of the piston displacement is defined by the quantity and frequency of electronic signal pulses from the programmed control system. The piston movement displaces a mix of air and medical oxygen to the patient.The prototype's V-CMV mode has been tested on an electronic lung to simulate the response of a real organ in typical conditions. As a result an average error of 3% was obtained. Further upgrades are suggested for performance optimization, pre-clinical tests and clinical validation. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-02-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/preprint info:eu-repo/semantics/publishedVersion |
format |
preprint |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://preprints.scielo.org/index.php/scielo/preprint/view/1770 10.1590/SciELOPreprints.1770 |
url |
https://preprints.scielo.org/index.php/scielo/preprint/view/1770 |
identifier_str_mv |
10.1590/SciELOPreprints.1770 |
dc.language.iso.fl_str_mv |
spa |
language |
spa |
dc.relation.none.fl_str_mv |
https://preprints.scielo.org/index.php/scielo/article/view/1770/2836 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2021 Oscar Heredia, Xiomara Chunga, Lewis De La Cruz, Mirko Zimic https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2021 Oscar Heredia, Xiomara Chunga, Lewis De La Cruz, Mirko Zimic https://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
SciELO Preprints SciELO Preprints SciELO Preprints |
publisher.none.fl_str_mv |
SciELO Preprints SciELO Preprints SciELO Preprints |
dc.source.none.fl_str_mv |
reponame:SciELO Preprints instname:SciELO instacron:SCI |
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SciELO |
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SCI |
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SCI |
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SciELO Preprints |
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SciELO Preprints |
repository.name.fl_str_mv |
SciELO Preprints - SciELO |
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scielo.submission@scielo.org |
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1797047821977780224 |