| 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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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥18,200,000 (Direct Cost: ¥14,000,000、Indirect Cost: ¥4,200,000)
Fiscal Year 2014: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2013: ¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000)
Fiscal Year 2012: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
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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 / ベアリングレスモータ / 流量 / 粘度 / 数値流体力学 / 2次流れ / PIV |
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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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