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Master's Dissertation
DOI
https://doi.org/10.11606/D.3.2001.tde-21022024-144621
Document
Author
Full name
Edir Branzoni Leal
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2001
Supervisor
Committee
Ortiz, Jayme Pinto (President)
Lima, Raúl González
Silva, Domingos Guerino
Title in Portuguese
Simulador hidrodinâmico para estudos "in vitro" do sistema cardiovascular.
Keywords in Portuguese
Sistema cardiovascular (Simulação)
Abstract in Portuguese
O presente trabalho refere-se ao aperfeiçoamento e otimização de um simulador cardiovascular para a avaliação de vasos sangüíneos. O simulador é constituído basicamente de duas partes: uma unidade central de fluxo pulsátil e pressão para geração de uma onda pulsátil e outra modular onde ocorrerão os diversos testes dos vasos sangüíneos. Os segmentos utilizados foram obtidos por meio de procedimento cirúrgico de ponte de safena e cirurgia de varizes. Esses segmentos foram cuidadosamente retirados e após a escolha do médico, as partes remanescentes do segmento vascular que apresentava boa condição, foi utilizada no simulador. A calibração foi realizada antes do teste de ruptura da veia. Com o auxílio de um fluxômetro eletromagnético, manômetros do tipo Bourdon, foi possível obter-se os valores de vazão e pressão na seção de teste. Os valores de pressão alcançados para a ruptura das veias são da ordem de 300 kPa ou maior, comprovando a alta resistência da estrutura da parede da veia.
Title in English
Untitled in english
Keywords in English
Cardiovascular system (Simulation)
Abstract in English
The present work refers both to the perfectioning and optimization of a cardiovascular simulator for the evaluation of blood vessels. The simulator consists basically of two parts: a central unit of pulsing flux and pressure to generate a wave pulse and a modular unit in which the various blood vessel tests will occur. The vein segments used were obtained from surgery procedure of Saphena overpass and varix surgery. These segments were carefully removed during surgeries and after the choice of surgeons, the reminiscent parts of vascular segment presenting a good shop were used in the simulator. The calibration system was performed before the system of vein rupture test. With the aid of an electromagnetic flow meter, Bourdon manometers, it was possible to get results of volumetric flux and pressure in the test section. The pressure values reached for vein segment ruptures are on the order of 300 kPa or more, proving the high resistance of the vein wall structure.
 
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Publishing Date
2024-02-21
 
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