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Implantable centrifugal blood pump with dual impellerand double pivot bearing system: electromechanical actuator, prototyping, and anatomical studies
Bock, Eduardo; Antunes, Pedro; Leão, Tarcisio; Uebelhart, Beatriz; Fonseca, Jeison; Leme, Juliana; Utiyama, Bruno; Silva, Cibele da; Cavalheiro, Andre; Santos Filho, Diolino; Dinkhuysen, Jarbas; Biscegli, Jose; Andrade, Aron; Arruda, Celso.
Afiliación
  • Bock, Eduardo; Instituto Dante Pazzanese de Cardiologia. Unicamp. São Paulo. BR
  • Antunes, Pedro; Instituto Dante Pazzanese de Cardiologia. Escola Politécnica da USP. São Paulo. BR
  • Leão, Tarcisio; Unicamp. São Paulo. BR
  • Uebelhart, Beatriz; Instituto Dante Pazzanese de Cardiologia. São Paulo. BR
  • Fonseca, Jeison; Instituto Dante Pazzanese de Cardiologia. São Paulo. BR
  • Leme, Juliana; Instituto Dante Pazzanese de Cardiologia. São Paulo. BR
  • Utiyama, Bruno; Instituto Dante Pazzanese de Cardiologia. São Paulo. BR
  • Silva, Cibele da; Instituto Dante Pazzanese de Cardiologia. São Paulo. BR
  • Cavalheiro, Andre; Escola Politécnica da USP. São Paulo. BR
  • Santos Filho, Diolino; Escola Politécnica da USP. São Paulo. BR
  • Dinkhuysen, Jarbas; Instituto Dante Pazzanese de Cardiologia. São Paulo. BR
  • Biscegli, Jose; Instituto Dante Pazzanese de Cardiologia. São Paulo. BR
  • Andrade, Aron; Instituto Dante Pazzanese de Cardiologia. São Paulo. BR
  • Arruda, Celso; Unicamp. São Paulo. BR
Artif Organs ; 35(5): 437-442, 2011. ilus, graf
Article en En | SES-SP, SESSP-IDPCPROD, SES-SP | ID: biblio-1060074
Biblioteca responsable: BR79.1
Ubicación: BR79.1
ABSTRACT
An implantable centrifugal blood pump hasbeen developed with original features for a left ventricularassist device. This pump is part of a multicenter and internationalstudy with the objective to offer simple, affordable,and reliable devices to developing countries. Previous computationalfluid dynamics investigations and wear evaluationin bearing system were performed followed byprototyping and in vitro tests. In addition, previous bloodtests for assessment of normalized index of hemolysis showresults of 0.0054 2.46 ¥ 10-3 mg/100 L. An electromechanicalactuator was tested in order to define the bestmotor topology and controller configuration. Three differenttopologies of brushless direct current motor (BLDCM)were analyzed.An electronic driver was tested in differentsituations, and the BLDCM had its mechanical propertiestested in a dynamometer. Prior to evaluation of performanceduring in vivo animal studies, anatomical studieswere necessary to achieve the best configuration and cannulationfor left ventricular assistance. The results wereconsidered satisfactory, and the next step is to test theperformance of the device in vivo.
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Colección: 06-national / BR Base de datos: SES-SP / SESSP-IDPCPROD Asunto principal: Corazón Auxiliar Tipo de estudio: Clinical_trials Idioma: En Revista: Artif Organs Año: 2011 Tipo del documento: Article
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Colección: 06-national / BR Base de datos: SES-SP / SESSP-IDPCPROD Asunto principal: Corazón Auxiliar Tipo de estudio: Clinical_trials Idioma: En Revista: Artif Organs Año: 2011 Tipo del documento: Article