ワイヤを牽引する磁気マイクロマシンの試作

抄録

A magnetic micromachine capable of trailing a wire was fabricated. The micromachine was constructed of a permanent magnet, a copper tube, and a spiral shape made from a tungsten wire. The magnet was magnetized in the direction of its diameter. When a rotational magnetic field was applied, the machine rotated and moved in silicone oil. Experiments showed that a spiral shape produced the largest thrust force. The micromachine was able to trail a wire in a small waterway created to simulate a blood vessel. These results show that the micromachine has great potential for navigating medical catheters.