10311 人工心臓用3軸制御型磁気浮上遠心ポンプの開発(OS5 バイオメカトロニクス)

概要

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The life time of a centrifugal pump for artificial heart is mainly determined by the durability of mechanical parts such as bearings and seals. The purpose of this study is to develop a durable centrifugal pump for artificial heart with magnetic suspension. Developed magnetically suspended motor consists of a top stator, a rotor, a bottom stator, and a permanent magnet bearing (PM bearing). The rotor is levitated in the gap between the top and bottom stators. The tilt and axial position of the rotor is controlled with the top stator. The rotation of the rotor is controlled with the bottom stator. The top stator and the rotor were redesigned to miniaturize the motor by using the three-dimensional magnetic field analysis. As a result, the diameter of rotor was reduced from 60 to 51[mm], and the volume of the motor was reduced by 27.8[%] without deterioration of the suspension performance.
社団法人日本機械学会の論文
2005-03-17