Improving reliability and robustness in ventricular assist device
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Processando o Saber (Online) |
Texto Completo: | https://fatecpg.edu.br/revista/index.php/ps/article/view/246 |
Resumo: | This paper proposes the development of a method for designing Ventricular Assist Devices (VAD) can measure "in vitro" the improvement of reliability and risks with inherent safety concept as well as criteria for design validation. The VAD models used and developed in this research project were: i) VAD.PETG-01 with a top design and a base that connects to the pump housing, a magnetic coupling with six magnets that allows the drive by an external motor and bearing shaft clearance adjustment; ii) VAD.PETG.02 with a brushless magnetic motor, rotor with bearings and rolling elements driven by direct conduction, which allows the operation of this internal motor. The method, with the use of HFA, provided the definition of failure frequencies for the models tested which were 5.0014E-02 for VAD-PETG-01 and 3.314E-03 for DAV.PETG.02. The failure frequency for the pumps from Reyes' research, used as a reference for applying the method, was 1.8228E-05. With the failure frequencies of the top events for each of the models, it was possible to calculate the reliability improvement index between them, which was 0.068 and with a % Reliability Improvement of 93.20%. The models DAV.PETG.01 and DAV.PETG.02 were plotted in the "unacceptable" region of the acceptability criterion, due to the high failure frequency. As a reference the Reyes pumps were also plotted, but in the "acceptable" region. For the research problem, the method presented measurable results of reliability improvement among the tested models. In addition to confirming the acceptability of the Reyes pumps, used as a case study. The acceptability criterion was shown to be consistent with the calculated reliability data. |
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Improving reliability and robustness in ventricular assist deviceMelhoria de confiabilidade e robustez em dispositivo de assistência ventricularDispositivo de Assistência VentricularTeste de BancadaSegurança InerenteConfiabilidadeVentricular Assist DeviceBench TestInherent SafetyReliabilityThis paper proposes the development of a method for designing Ventricular Assist Devices (VAD) can measure "in vitro" the improvement of reliability and risks with inherent safety concept as well as criteria for design validation. The VAD models used and developed in this research project were: i) VAD.PETG-01 with a top design and a base that connects to the pump housing, a magnetic coupling with six magnets that allows the drive by an external motor and bearing shaft clearance adjustment; ii) VAD.PETG.02 with a brushless magnetic motor, rotor with bearings and rolling elements driven by direct conduction, which allows the operation of this internal motor. The method, with the use of HFA, provided the definition of failure frequencies for the models tested which were 5.0014E-02 for VAD-PETG-01 and 3.314E-03 for DAV.PETG.02. The failure frequency for the pumps from Reyes' research, used as a reference for applying the method, was 1.8228E-05. With the failure frequencies of the top events for each of the models, it was possible to calculate the reliability improvement index between them, which was 0.068 and with a % Reliability Improvement of 93.20%. The models DAV.PETG.01 and DAV.PETG.02 were plotted in the "unacceptable" region of the acceptability criterion, due to the high failure frequency. As a reference the Reyes pumps were also plotted, but in the "acceptable" region. For the research problem, the method presented measurable results of reliability improvement among the tested models. In addition to confirming the acceptability of the Reyes pumps, used as a case study. The acceptability criterion was shown to be consistent with the calculated reliability data.Este artigo propõe o desenvolvimento de um método para projetos de Dispositivos de Assistência Ventricular (DAV) que possa mensurar “in vitro” a melhoria da confiabilidade e riscos com conceito de segurança inerente, bem como critérios para a validação do projeto. Os modelos de DAV utilizados e desenvolvidos neste artigo de pesquisa foram: i) DAV.PETG-01 com um “design” superior e uma base que se conecta a estrutura da bomba, um acoplamento magnético com seis imãs que permite o acionamento por um motor externo e ajuste de folgas do eixo do mancal; ii) DAV.PETG.02 com um motor magnético “brushless”, rotor com mancais e elementos rolantes acionados por condução direta, que permite o funcionamento deste motor interno. O método, com o uso de análise de árvore de falhas, proporcionou a definição de frequência de falhas dos modelos testados que foram 5,0014E-02 para o DAV-PETG-01 e 3,314E-03 para o DAV.PETG.02. A frequência de falhas para as bombas da pesquisa de Reyes, utilizadas como referência para aplicação do método, foi 1,8228E-05. Com as frequências de falhas dos eventos topo para cada um dos modelos, foi possível calcular o índice de melhoria da confiabilidade entre eles, que foi de 0,068 e com uma % de Melhoria de Confiabilidade de 93,20%. Os modelos DAV.PETG.01 e DAV.PETG.02 foram plotados na região “inaceitável” do critério de aceitabilidade, em função da frequência de falhas elevada. Como referência as bombas de Reyes também foram plotadas, porém, na região “aceitável”. Para o problema de pesquisa, o método apresentou resultados mensuráveis da melhoria de confiabilidade, entre os modelos testados. Além de confirmar a aceitabilidade das bombas de Reyes, utilizado como estudo de caso. O critério de aceitabilidade mostrou-se coerente com os dados de confiabilidade calculados.FATEC Praia Grande2022-05-18info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://fatecpg.edu.br/revista/index.php/ps/article/view/246Revista Processando o Saber; v. 14 (2022): Revista Processando o Saber; 73-852179-5150reponame:Processando o Saber (Online)instname:Faculdades de Tecnologia do Estado de São Paulo (Fatec)instacron:FATECporhttps://fatecpg.edu.br/revista/index.php/ps/article/view/246/159Copyright (c) 2022 Revista Processando o Saberhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessDias, Jonatas CerqueiraDias, Jefferson CerqueiraFilho, Diolino Jose dos Santos2022-06-06T17:02:08Zoai:revista.fatecpg.edu.br:article/246Revistahttps://www.fatecpg.edu.br/revista/index.php/ps/indexhttps://fatecpg.edu.br/revista/index.php/ps/oaifabio@fatecpg.edu.br||revista@fatecpg.com.br2179-51502179-5150opendoar:2022-06-06T17:02:08Processando o Saber (Online) - Faculdades de Tecnologia do Estado de São Paulo (Fatec)false |
dc.title.none.fl_str_mv |
Improving reliability and robustness in ventricular assist device Melhoria de confiabilidade e robustez em dispositivo de assistência ventricular |
title |
Improving reliability and robustness in ventricular assist device |
spellingShingle |
Improving reliability and robustness in ventricular assist device Dias, Jonatas Cerqueira Dispositivo de Assistência Ventricular Teste de Bancada Segurança Inerente Confiabilidade Ventricular Assist Device Bench Test Inherent Safety Reliability |
title_short |
Improving reliability and robustness in ventricular assist device |
title_full |
Improving reliability and robustness in ventricular assist device |
title_fullStr |
Improving reliability and robustness in ventricular assist device |
title_full_unstemmed |
Improving reliability and robustness in ventricular assist device |
title_sort |
Improving reliability and robustness in ventricular assist device |
author |
Dias, Jonatas Cerqueira |
author_facet |
Dias, Jonatas Cerqueira Dias, Jefferson Cerqueira Filho, Diolino Jose dos Santos |
author_role |
author |
author2 |
Dias, Jefferson Cerqueira Filho, Diolino Jose dos Santos |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Dias, Jonatas Cerqueira Dias, Jefferson Cerqueira Filho, Diolino Jose dos Santos |
dc.subject.por.fl_str_mv |
Dispositivo de Assistência Ventricular Teste de Bancada Segurança Inerente Confiabilidade Ventricular Assist Device Bench Test Inherent Safety Reliability |
topic |
Dispositivo de Assistência Ventricular Teste de Bancada Segurança Inerente Confiabilidade Ventricular Assist Device Bench Test Inherent Safety Reliability |
description |
This paper proposes the development of a method for designing Ventricular Assist Devices (VAD) can measure "in vitro" the improvement of reliability and risks with inherent safety concept as well as criteria for design validation. The VAD models used and developed in this research project were: i) VAD.PETG-01 with a top design and a base that connects to the pump housing, a magnetic coupling with six magnets that allows the drive by an external motor and bearing shaft clearance adjustment; ii) VAD.PETG.02 with a brushless magnetic motor, rotor with bearings and rolling elements driven by direct conduction, which allows the operation of this internal motor. The method, with the use of HFA, provided the definition of failure frequencies for the models tested which were 5.0014E-02 for VAD-PETG-01 and 3.314E-03 for DAV.PETG.02. The failure frequency for the pumps from Reyes' research, used as a reference for applying the method, was 1.8228E-05. With the failure frequencies of the top events for each of the models, it was possible to calculate the reliability improvement index between them, which was 0.068 and with a % Reliability Improvement of 93.20%. The models DAV.PETG.01 and DAV.PETG.02 were plotted in the "unacceptable" region of the acceptability criterion, due to the high failure frequency. As a reference the Reyes pumps were also plotted, but in the "acceptable" region. For the research problem, the method presented measurable results of reliability improvement among the tested models. In addition to confirming the acceptability of the Reyes pumps, used as a case study. The acceptability criterion was shown to be consistent with the calculated reliability data. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-05-18 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://fatecpg.edu.br/revista/index.php/ps/article/view/246 |
url |
https://fatecpg.edu.br/revista/index.php/ps/article/view/246 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://fatecpg.edu.br/revista/index.php/ps/article/view/246/159 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2022 Revista Processando o Saber http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2022 Revista Processando o Saber http://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 |
FATEC Praia Grande |
publisher.none.fl_str_mv |
FATEC Praia Grande |
dc.source.none.fl_str_mv |
Revista Processando o Saber; v. 14 (2022): Revista Processando o Saber; 73-85 2179-5150 reponame:Processando o Saber (Online) instname:Faculdades de Tecnologia do Estado de São Paulo (Fatec) instacron:FATEC |
instname_str |
Faculdades de Tecnologia do Estado de São Paulo (Fatec) |
instacron_str |
FATEC |
institution |
FATEC |
reponame_str |
Processando o Saber (Online) |
collection |
Processando o Saber (Online) |
repository.name.fl_str_mv |
Processando o Saber (Online) - Faculdades de Tecnologia do Estado de São Paulo (Fatec) |
repository.mail.fl_str_mv |
fabio@fatecpg.edu.br||revista@fatecpg.com.br |
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1797068992548962304 |