Oxygenators
Mostrando 1-12 de 17 artigos, teses e dissertações.
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1. In-Vitro Evaluation of Two Types of Neonatal Oxygenators in Handling Gaseous Microemboli and Maintaining Optimal Hemodynamic Stability During Cardiopulmonary Bypass
Abstract Objective: Usually only FDA-approved oxygenators are subject of studies by the international scientific community. The objective of this study is to evaluate two types of neonatal membrane oxygenators in terms of transmembrane pressure gradient, hemodynamic energy transmission and gaseous microemboli capture in simulated cardiopulmonary bypass syst
Braz. J. Cardiovasc. Surg.. Publicado em: 2016-10
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2. Avaliação de oxigenador de membrana infantil em ovinos.
Analisar a segurança e a eficácia de um novo oxigenador de membrana denominado OXM -1500. Métodos: No período de maio de 2005 a setembro de 2006, foram estudados seis ovinos da raça Santa Inês, sendo cinco machos e uma fêmea, com peso corpóreo médio de 14,1 (5) kg, superfície corpórea de 0,6 (0,2) m2 e idade média de 3,8 (1,5) meses. Todos foram
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/11/2011
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3. Evaluation of blood compatibility of plasma deposited heparin-like films and SF6 plasma treated surfaces
In devices used in open-heart surgery and dialysis, blood must be continuously processed using extracorporeal circuits composed of peristaltic pumps and active components such as specific filters and oxygenators. Several procedures have been employed to avoid blood coagulation induced by contact with the artificial surfaces of such devices. Often heparin, a
Materials Research. Publicado em: 2010-03
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4. Evaluation of effectiveness of the sanitization of a water purification system. Sterilization of medical devices, residual dissipation of ethylene oxide and the use of green fluorescent protein (GFP) as an indicator of process control / Avaliação de eficácia da sanitização de um sistema de purificação de água. Esterilização de artigos médicos, dissipação residual do óxido de etileno e uso da proteína verde fluorescente (GFP) como inidicador de controle do processo
The water exerts important paper in different phases of critical items manufacture in the health care units, pharmaceutical industries, hospitals and clinics, becoming necessary a rigorous control of the water purification systems, storage and distribution, in order to prevent biofilms formation and cross-contamination between devices and patients, who are s
Publicado em: 2007
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5. Avaliação in vitro e ex vivo de oxigenador de membrana de baixa resistência para o uso ECMO sem auxílio de bomba.
Introduction: Extracorporeal pulmonary assistance has been proposed as an invasive alternative to the conventional treatment when adequate oxygenation becomes impossible by mechanical ventilation. Extracorporeal membrane oxygenation (ECMO) attained using assisted circulation may cause hemolysis, coagulation disorders, an inflammatory response and complicatio
Publicado em: 2006
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6. Avaliação de oxigenadores de sangue utilizando principios de transferencia de massa e tecnica de perda de carga / Membrane blood oxygenator evaluation using mass transfer principles and head loss techniques
Oxigenadores de sangue tipo de membrana são construídos para trocarem gases de respiração através de uma área de contato, a sua chamada área de troca. Devido a características do processo de fabricação, esta área pode softer variações. Neste trabalho procurou-se desenvolver métodos de avaliação da variação desta área, por meio da medição
Publicado em: 2004
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7. 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
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8. A Comparison of Flat-Sheet and Hollow-Fiber Membrane Oxygenators: The Shiley M-2000 vs. the Bentley BOS-CM 40
To compare new flat-sheet and hollow-fiber membrane oxygenators for use in cardiopulmonary bypass, we randomly divided 40 coronary artery surgery patients into 2 groups of 20 patients each. The Shiley M-2000 flat-sheet membrane oxygenator was used in 1 group, and the Bentley BOS-CM40 hollow-fiber membrane oxygenator was used in the other group. Both oxygenat
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9. MEMBRANE VERSUS BUBBLE OXYGENATORS: A CLINICAL COMPARISON OF POSTOPERATIVE BLOOD LOSS
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10. A Clinical Evaluation of the Rygg-Kyvsgaard III and the Mark III Pump Oxygenators
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11. Ultrasonic identification of sources of gaseous microemboli during open heart surgery
An ultrasonic transducer was used to detect gaseous microemboli during open heart surgery. When placed over the carotid artery of patients during surgery it was recognized that gaseous emboli were released into the systemic circulation following recognizable surgical procedures and from the oxygenator during bypass. Fixation of the transducer on the arterial
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12. A brief comparative study of four disposable bubble oxygenators
Four widely used bubble oxygenators—the Optiflo I, the Bentley Q 200 A, the Harvey 200, and the Shiley 100 A—were tested and compared in 182 patients undergoing cardiac valve surgery. Fifty-six cases were performed with normothermia and 126 cases incorporated mild hypothermia (28-30° C). There was no significant difference in the average age of the pati