A Small Hyperthermia Device of Magnetic Nanoparticle and its Extension to Human-body-size Device

Abstract

We developed a small coil and oscillator system for the hyperthermia of magnetic nanoparticles. The inner diameter and the length of the coil are 50 Φ and 60 mm, and we used them for the mice experiments. The frequency is 100 kHz, and the magnetic field is higher than 34.6 kA/m for the 5-Turn coil. Some experimental result is positive, and therefore we try to extend the system size for the human body in the same frequency and the same magnetic field intensity. Using the scale law in physics, and the coil is 500 Φ diameter, 600 mm length, and 5-Turn, but the magnetic field intensity and the frequency are the same as the present system. We design the instrument parameters. Fortunately, these design parameters are realistic to make a large device using the present electric parts in the market.