2014 Fiscal Year Final Research Report
Design of maglev ventricular assist devices considering bearing performance and blood damage
| Project/Area Number |
24360059
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Design engineering/Machine functional elements/Tribology
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
TAKATANI Setsuo 日本大学, 医学部, 客員教授 (40154786)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Keywords | 磁気軸受 / 人工心臓 / 血液ポンプ / 遠心ポンプ / 溶血 / 血栓 |
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| Outline of Final Research Achievements |
Continuous flow type ventricular assist devices (VADs) have been clinically approved and used used in Japan, Europe and United states. In order to improve the durability and hemo-compatibility, the use of magnetic bearings and hydrodynamic bearings have been studied. In this research, in order to reduce the hemolysis and thrombus formation in the pumps using non-contact bearings, the VAD design method considering not only basic non-contact bearing characteristics such as load capacity, stiffness and damping, but also blood flow between the impeller and the stator， has been studied. This project mainly consisted of the CFD analysis and PIV based flow measurement of the blood pumps, the development of new bearingless motors considering the blood flow and the sensorless estimation of blood viscosity.
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| Free Research Field |
精密工学
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