磁性流体駆動人工心臓

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  • An artificial heart driven by a ferrofluidic actuator.

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Feasibility of a ferrofluidic actuator for an artifical heart was studied. A ferrofluidic actuator moves magnetic fluids by applying a magnetic field to magnetic fluids. When magnetic flux of 0.32T was applied to the interface of the ferrofluid and air, the ferrofluid was displaced and a pressure of 7.58kPa (57mmHg) was obtained. An array of four poles of solenoids was mounted near a U-shaped glass cylinder. Two solenoids were alternately activated. A pressure of 8.65kPa (65mmHg) was obtained. Calculations indicate magnetic flux of 0.49T is enough for obtaining a pressure of 13.3kPa (100mmHg). A ferrofluidic actuator is a promising actuator for an implantable artificial heart.

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  • 人工臓器

    人工臓器 21 (2), 423-428, 1992

    一般社団法人 日本人工臓器学会

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