Fabrication of spiral type magnetic micromachine for trailing a wire

Endovascular is known as a low-invasive medical treatment. However, inserting the catheter or the guide wire is a difficult operation especially for thin blood vessels. So the function of trailing the catheter is required to insert the catheter safely. We think these problems can be solved if we set a magnetic micromachine to a tip of the catheter because the micromachine can produce the thrust force for trailing. In this paper, we fabricated and examined a micromachine for trailing a wire.