ALTERNATING MAGNETIC FIELD GENERATOR FOR THREE-DIMENSIONAL POSITION TRACKING OF MEDICAL TREATMENT EQUIPMENT FOR TRAINING

Author:

PARK MIN GYU1,BANG SANG KWANG1,SHIN SEONG HWAL1,SEONG KI WOONG2,LEE JYUNG HYUN3

Affiliation:

1. Department of Medical and Biological Engineering, Graduate School, Kyungpook National University, Daegu 41944, Korea

2. Department of Biomedical Engineering, Kyungpook National University Hospital, Daegu 41944, Korea

3. Department of Biomedical Engineering, School of Medicine, Kyungpook National University, Daegu 41944, Korea

Abstract

In recent years, the incidence of cardiovascular disease is high due to the aging population and westernization of dietary habits, what encourages researching new methods. Most cardiovascular procedures use the catheter. In the procedure using a catheter, a long time of training is required to lower the procedure risk. So, a medical training simulator is being developed. In the actual procedure, the position of the catheter is confirmed by a C-arm using X-ray, but there is a risk of over exposure to radiation if the X-ray device is used until training. To solve this problem, in previous studies, the position of the catheter was tracked using a permanent magnet. However, the method of permanent magnet has a high error value due to the shape of the external magnetic flux density and the interference of environmental magnetic field. In this paper, an alternating magnetic field generator is proposed for 3D position tracking of medical equipment for training. An electromagnet with an optimal shape was designed through finite element analysis. The designed electromagnet is implemented and tested to confirm the performance. Through the location tracking experiment, an equation to estimate the distance between the electromagnet and the Hall sensor in 3D space was derived by linear regression recursive method. Through the derived equation, it was possible to track the position of the electromagnet at any position in the 3D space. Unlike previous studies using permanent magnets, the proposed alternating magnetic field generator has an isotropic shape with an external magnetic flux density according to the same distance. So, it is possible to reduce errors in position and distance, and minimize the effect of environmental magnetic fields by using an alternating magnetic field.

Publisher

World Scientific Pub Co Pte Lt

Subject

Biomedical Engineering

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

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