Optimization of Implantable Axial Pump to Increase Efficiency of Mechanical Circulatory Support
| Autor: | Array Е. Ефимов, Array П. Иткин, Array И. Агапов, Array П. Кулешов, Array В. Готье |
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| Rok vydání: | 2017 |
| Předmět: |
flow-pressure characteristics
Materials science RD1-811 Blade (geometry) 0206 medical engineering Flow (psychology) Axial piston pump axial pump 02 engineering and technology 030204 cardiovascular system & hematology mechanical support of blood circulation shear stress Physics::Fluid Dynamics 03 medical and health sciences Impeller 0302 clinical medicine Shear stress Immunology and Allergy Point (geometry) 3d mathematical model Pressure drop Transplantation Mechanics 020601 biomedical engineering efficiency Surgery Twist angle impeller hemolysis |
| Zdroj: | Vestnik Transplantologii i Iskusstvennyh Organov, Vol 19, Iss 2, Pp 61-68 (2017) |
| ISSN: | 2412-6160 1995-1191 |
| DOI: | 10.15825/1995-1191-2017-2-61-68 |
| Popis: | Aim. To optimize implantable axial pump to increase hydraulic efficiency and reduce blood hemolysis. Materials and methods. In this article the basic geometric parameters of impeller’s geometry (the blade’s angle, the blade’s length and the twist angle’s ratio) were investigated and optimized using methods of computer hydrodynamics. The calculations were carried out for the optimum operation of the pump at the speed of 8000 rpm. Results. The main parameters of impeller’s geometric were determined which made it possible to increase efficiency of the pump by an average of 7.5% (depending on the pump operation mode) and pressure drop of 8% on average. The value of shear stress in the flow region obtained as a result of the calculations did not exceed 147 Pa admissible from the point of view of blood hemolysis. |
| Databáze: | OpenAIRE |
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