Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/71222
Título: | Design and fabrication of thin-walled reservoir based on microcasting assisted by vacuum for neutral argon plasma system in minimally invasive medical devices |
Autor(es): | Rodrigues, José Artur Oliveira Silva, M. F. Puga, Hélder Correia, J. H. |
Palavras-chave: | Argon plasma therapy Medical devices Investment casting Thin-walled microcasting |
Data: | 2018 |
Editora: | Elsevier |
Revista: | Sensors and Actuators A: Physical |
Resumo(s): | This paper presents a solution to implement neutral argon plasma (NAP) in minimally invasive medical devices for therapeutic endoscopy. The NAP system is composed of compressed inert gas (argon), two electrodes, and a high-voltage source to ionise the argon. The miniaturisation of an argon reservoir is required. Finite-element method simulations of small reservoirs of an aluminium alloy with thicknesses of 0.2, 0.4, and 0.6 mm at a pressure of 7 atm were performed. The numerical results show total deformation of 108 jim, stress of 160 MPa, and a safety factor of 1.8 for the thinnest argon reservoir, resulting in a component with no permanent deformation. A small reservoir was formed via vacuum-assisted microcasting. The prototype exhibited a small and thin-walled argon reservoir. (C) 2018 Elsevier B.V. All rights reserved. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/71222 |
DOI: | 10.1016/j.sna.2018.06.029 |
ISSN: | 0924-4247 |
Versão da editora: | https://www.sciencedirect.com/science/article/pii/S0924424718300980 |
Arbitragem científica: | yes |
Acesso: | Acesso restrito UMinho |
Aparece nas coleções: | CMEMS - Artigos em revistas internacionais/Papers in international journals |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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JRodrigues_SNA.pdf Acesso restrito! | 2,75 MB | Adobe PDF | Ver/Abrir |