Fault-Tolerance for a Centrifugal Blood Pump using a Two -DOF Controlled Magnetic Bearing
In our laboratory, an implantable centrifugal blood pump (CBP) with a two degrees-of-freedom controlled magnetic bearing (MB) to support the impeller without contact has been developed to assist the pumping function of a weakened heart ventricle. In order to maintain the function of the CBP after damage to the electromagnets (EMs) of the MB, fault-tolerant strategies for the CBP are proposed in this study. Using a redundant design of the MB, the magnetic levitation of the impeller was maintained with damage to up to two out of a total four EMs of the MB. Furthermore, with damage to three EMs, contact-free support of the impeller was also achieved by using hydrodynamic and electromagnetic forces.
Magnetic Bearing Centrifugal Blood Pump Fault-Tolerance
Chi Nan Pai Wataru Hijikata Tadahiko Shinshi
Precision and Intelligence Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Japan
国际会议
The Twelfth International Symposium on Magnetic Bearings(第十二届国际磁悬浮轴承学术会议)
武汉
英文
689-693
2010-08-22（万方平台首次上网日期，不代表论文的发表时间）