Spiral-type micro-machine for medical applications

K. Ishiyama; K. I. Arai; M. Sendoh; A. Yamazaki

Spiral-type micro-machine for medical applications

K. Ishiyama, K. I. Arai, M. Sendoh, A. Yamazaki

RIEC - Human and Bio Information Systems Division

Tohoku University

Research output: Contribution to conference › Paper › peer-review

56 Citations (Scopus)

Abstract

The spiral-type magnetic micro-machine, which is driven by a rotating magnetic field, is characterized by their wireless operation for swimming. The machine have to swim under the lower Reynolds number (Re) environment, when the machine is downsized and work inside the human body. In this study, using various silicone oils whose kinematic viscosity ranged from 1 to 5×10⁵ mm²/s, swimming performance of the machine on low Reynolds number was examined. The machine composed of a cylindrical NdFeB magnet could swim in the oils under condition of Re=10^-7. This Reynolds number is same as that of a micro-machine with micron size swimming in the water. In addition, the machine could turn by controlling the external rotational magnetic field, therefore the swimming direction of the machine could be controlled. Using these principles, a magnetic micro-machine, which can run in a gel, was also fabricated.

Original language	English
Pages	65-69
Number of pages	5
Publication status	Published - 2000
Event	Proceedings of the 2000 International Symposium on Micromechatronics and Human Science - , United States Duration: 2000 Oct 22 → 2000 Oct 25

Conference

Conference	Proceedings of the 2000 International Symposium on Micromechatronics and Human Science
Country/Territory	United States
Period	00/10/22 → 00/10/25

Cite this

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title = "Spiral-type micro-machine for medical applications",

abstract = "The spiral-type magnetic micro-machine, which is driven by a rotating magnetic field, is characterized by their wireless operation for swimming. The machine have to swim under the lower Reynolds number (Re) environment, when the machine is downsized and work inside the human body. In this study, using various silicone oils whose kinematic viscosity ranged from 1 to 5×105 mm2/s, swimming performance of the machine on low Reynolds number was examined. The machine composed of a cylindrical NdFeB magnet could swim in the oils under condition of Re=10-7. This Reynolds number is same as that of a micro-machine with micron size swimming in the water. In addition, the machine could turn by controlling the external rotational magnetic field, therefore the swimming direction of the machine could be controlled. Using these principles, a magnetic micro-machine, which can run in a gel, was also fabricated.",

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AU - Ishiyama, K.

AU - Arai, K. I.

AU - Sendoh, M.

AU - Yamazaki, A.

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AB - The spiral-type magnetic micro-machine, which is driven by a rotating magnetic field, is characterized by their wireless operation for swimming. The machine have to swim under the lower Reynolds number (Re) environment, when the machine is downsized and work inside the human body. In this study, using various silicone oils whose kinematic viscosity ranged from 1 to 5×105 mm2/s, swimming performance of the machine on low Reynolds number was examined. The machine composed of a cylindrical NdFeB magnet could swim in the oils under condition of Re=10-7. This Reynolds number is same as that of a micro-machine with micron size swimming in the water. In addition, the machine could turn by controlling the external rotational magnetic field, therefore the swimming direction of the machine could be controlled. Using these principles, a magnetic micro-machine, which can run in a gel, was also fabricated.

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Spiral-type micro-machine for medical applications

Abstract

Conference

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