Artificial Organs
Mostrando 1-12 de 28 artigos, teses e dissertações.
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1. Avaliação e aperfeiçoamento de uma bomba de sangue centrífuga implantável ápice ventricular para assistência cardíaca / Evaluation and improvement of an apico-aortic centrifugal blood pump for cardiac assist
In this work an experimental study was realized with the Apico-Ventricular Blood Pump (AVBP) used as a ventricular assist device. This study is part of the device s development and the results were used for project evaluation and improvement. AVBP is a continuous flow centrifugal blood pump for ventricular assistance in chronic cardiac patients. Initially, a
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/09/2012
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2. Morfofisiologia do sistema genital masculino de ratos púberes e adultos após privação androgênica durante a pré-puberdade / Morphophysiology of male reproductive system of adult and pubertal rats after androgen deprivation during prepuberty
Endocrine disrupters are chemicals that can act as agonists or antagonists of endogenous hormones, interfering with the homeostasis of the organism. Since the endocrine system plays a critical role in the development and function of the male reproductive system, this is an especially vulnerable target of potential endocrine perturbations. The literature pres
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 06/02/2012
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3. Pesquisa e desenvolvimento de biomateriais: estudo das inter-relações científicas, tecnológicas e normativas / Research and development of biomaterials: study of scientific, tecnological and regulatory inter relationship
The history of research and development of biomaterials and medical device has been shown the application of unsafe products on the market, which were the cause of deaths and injuries in patients. For that reason, it can be said that various sectors of industry, academic representatives, government regulation and quality control of products, are under increa
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/02/2011
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4. Projeto, construção e testes de um dispositivo de assistência ventricular : bomba de sangue centrífuga implantável / Design, manufacturing and evaluation of a ventricular assistance device : implantable centrifugal blood pump
Uma Bomba de Sangue Centrífuga Implantável (BSCI) foi projetada e construída para assistência ventricular de longa duração no tratamento de pacientes portadores de doenças cardiovasculares. A proposta do projeto foi desenvolver um Dispositivo de Assistência Ventricular (DAV) com custos reduzidos, originalidade de desenho e tecnologia nacional. A geom
Publicado em: 2011
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5. Project, development and testing In vitro of new model pump for cardiopulmonary bypass : spiral pump / Projeto, desenvolvimento e ensaios "In Vitro" de novo modelo de bomba de sangue para circulação extracorpórea : bomba espiral
A model of blood pump has been developed, the Spiral Pump. This pump has an internal rotor, a conically shaped fuse, containing threads with double entrance on its surface. This rotor is supported by two bearings assembled at a stainless steel shaft, fixed to the housing´s base. The rotation of the conical fuse is generated by magnetic coupling to a motor,
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/02/2010
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6. Análise de fatores preditivos de ressecção visceral no tratamento operatório de doentes portadores de hérnia incisional gigante com perda de domicílio submetidos a pneumoperitônio progressivo pré-operatório / Predictors analysis for visceral ressection surgery in the treatment of patients with giant incisional hernia with loss of domain undergoing preoperative progressive pneumoperitoneum
INTRODUCTION: Incisional hernia (IH) occur in 2 to 15% of pacients that undergo abdominal surgery. Progressive preoperative pneumoperitoneum (PPP) was described in 1940 by Goñi Moreno for the treatment of incisional hernia with loss of domain (IHLD). Protocol for treatment of IHLD was stablished at Serviço de Cirurgia Eletiva da Divisão de Clínica Cirúr
Publicado em: 2009
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7. Analysis of the hydrodynamic profile of different models of roller pump used in extracorporeal circulation / Analise do perfil hidrodinamico em diferentes modelos de bombas de roletes utilizadas em circulação extracorporea
Introduction: Among the equipment used in cardiopulmonary bypass, roller pumps have great importance, with models available from several manufacturers. The roller adjustment is an important factor in the rates of hemolysis and the hemolytic potential differs in adjustment. Researchers do not always address details on the profiles of the raceway accepting tha
Publicado em: 2009
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8. The wild dance of the body / A selvagem dança do corpo
This tesis intends to argue on the creation and plastic abilities of the body. In order to follow this arguments, we will make a coutenpoint between two distinct thoughts: the one of natural body and other of na artificial body ? taking as conceptual characters two ballet dancers of the begining of the 20th century Isadora Duncan and Vaslav Nijinsky ?the for
Publicado em: 2006
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9. Parametros reprodutivos masculinos e fertilidade de ratos adultos expostos ao inseticida fenvalerato / Male reproductive parameters and fertility of adult rats exposed to fenvalerate
Fenvalerate is a synthetic pyrethroid insecticide widely used in agriculture to control a variety of insects. Although it is considered to be of low acute toxicity to mammals, studies have showed that pyrethroids can have estrogenic activity and can act as endocrine disruptors, causing important reproductive impairment in males. It is documented in the liter
Publicado em: 2006
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10. Is there correlation between the turbulent eddies size and mechanical hemolysis ?
Hemolytic profile of an artificial device chronically implanted in the cardiovascular system may represent the difference between the success and failure in its long-term performance. Last decades have witnessed efforts on the development of methods capable of predicting red blood cell damage in artificial organs. However, all of them have had limited succes
Journal of the Brazilian Society of Mechanical Sciences. Publicado em: 2000
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11. ConstruÃÃo de um nariz artificial usando redes neurais
The animals interact with environment in several ways. The smell around them has an extremely importance in the information transport, essential for survival. Such as for the animals, the smell plays an important rule for human beings. Due to this importance, the study in the human olfactory system is very helpful and started very long time ago. Although it
Publicado em: 2000
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12. Dispositivo para oxigenação e remoção de dioxido de carbono do sangue, em circuitos de circulação extracorporea
O presente trabalho refere-se ao projeto, construção e avaliação de um dispositivo capaz de oxigenar e remover o dióxido de carbono do sangue durante circulação extracorpórea em operações cardíacas ou em procedimentos de suporte pulmonar. O funcionamento do dispositivo baseia-se na exposição de finas camadas de sangue a uma região com alta conc
Publicado em: 1996