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Previous issue date: 2007-08-10 / The manufacturing of above and below-knee prosthesis starts by taking surfac measurements of the patient s residual limb. This demands the making of a cartridg with appropriate fitting and customized to the profile of each patient. The traditiona
process in public hospitals in Brazil begins with the completion of a record file (according to law n?388, of July 28, 1999 by the ministry of the health) for obtaining o the prosthesis, where it is identified the amputation level, equipment type, fitting type
material, measures etc. Nowadays, that work is covered by the Brazilian Nationa Health Service (SUS) and is accomplished in a manual way being used commo measuring tapes characterizing a quite rudimentary, handmade work and without an accuracy.In this dissertation it is presented the development of a computer integrate tool that it include CAD theory, for visualization of both above and below-knee prosthesis in 3D (i.e. OrtoCAD), as well as, the design and the construction a low cos electro-mechanic 3D scanner (EMS). This apparatus is capable to automatically obtain geometric information of the stump or of the healthy leg while ensuring smalle uncertainty degree for all measurements. The methodology is based on reverse engineering concepts so that the EMS output is fed into the above mentioned academi CAD software in charge of the 3D computer graphics reconstruction of the residualimb s negative plaster cast or even the healthy leg s mirror image. The obtained results demonstrate that the proposed model is valid, because it allows the structura analysis to be performed based on the requested loads, boundary conditions, material chosen and wall thickness. Furthermore it allows the manufacturing of a prosthesis cartridge meeting high accuracy engineering patterns with consequent improvement in the quality of the overall production process / A fabrica??o de pr?teses para amputados de membros inferiores (transfemural e transtibial) exige a confec??o de um cartucho com encaixe adequado e personalizado ao perfil de cada paciente. O processo tradicional de atendimento a pacientes em
hospitais p?blicos no Brasil inicia-se com o preenchimento de uma ficha conforme portaria n?388, de 28 de Julho de 1999 do minist?rio da sa?de para obten??o da pr?tese, onde ? identificado o n?vel de amputa??o, tipo de equipamento, tipo de encaixe, material, medidas etc. Atualmente, esses cartuchos s?o fabricados de forma manual atrav?s de instrumentos de baixa precis?o, caracterizando um trabalho bastante rudimentar, artesanal e sem nenhuma acuracidade. Nesta disserta??o prop?e-se o desenvolvimento de uma ferramenta integrada que envolva o CAD, para visualiza??o das pr?teses dos tipos transfemural/transtibial em 3D (OrtoCAD), bem como, o projeto e a constru??o um leitor eletromec?nico (esp?cie de scanner tridimensional), capaz de obter automaticamente e qualitativamente, com menor grau de incerteza as informa??es geom?tricas do coto ou da perna sadia. A metodologia inclui a aplica??o de conceitos de engenharia reversa para gerar computacionalmente a representa??o do coto e/ou a imagem reversa do membro sadio. Os resultados obtidos demonstram que o modelo posposto ? v?lido, pois permite a an?lise estrutural em fun??o do carregamento solicitado e a confec??o de um cartucho de pr?tese atendendo elevados padr?es de acuracidade da engenharia com conseq?ente melhoria na qualidade do processo de fabrica??o
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/15536 |
| Date | 10 August 2007 |
| Creators | Pereira, Edson Jorge Alc?ntara |
| Contributors | CPF:35808225434, http://lattes.cnpq.br/7353332474621022, Lima, Carlos Magno de, CPF:27185400449, http://lattes.cnpq.br/2682764296612645, Mishina, Koje Daniel Vasconcelos, CPF:62002112487, http://lattes.cnpq.br/7594014327071745, Guerra, ?ngelo Roncalli de Oliveira |
| Publisher | Universidade Federal do Rio Grande do Norte, Programa de P?s-Gradua??o em Engenharia Mec?nica, UFRN, BR, Tecnologia de Materiais; Projetos Mec?nicos; Termoci?ncias |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Format | application/pdf |
| Source | reponame:Repositório Institucional da UFRN, instname:Universidade Federal do Rio Grande do Norte, instacron:UFRN |
| Rights | info:eu-repo/semantics/openAccess |
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