コンパクト遠心血液ポンプの研究(第1報) : 2軸制御磁気軸受と磁気カップリング駆動(S64-2 生物医学工学における計測と制御(2),S64 生物医学工学における計測と制御)

概要

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Conventional centrifugal blood pumps with ball or pivot bearings to support an impeller have some problems, such as blood damages and low durability of mechanical parts due to mechanical contact and wear. Recently, various types of magnetic bearings have been proposed and applied to the centrifugal blood pumps, which allow non-contact suspension of the impeller. However, in the magnetic bearings, a reduction of the number of controlled degree-of-freedom (DOF) of the rotor for. miniaturization and low power consumption causes low stiffness in passively controlled directions. The purpose of this study is the realization of a compact centrifugal blood pump with high durability, high stiffness, and low power consumption. In this paper, a two-DOF controlled magnetic bearing with high passive stiffness and low power consumption is proposed. The design, fabrication and performance of a fabricated centrifugal pump with magnetic coupling drive of a brushless motor are discussed.
社団法人日本機械学会の論文
2004-09-04