Publisher : The Korean Institute of Electrical Engineers
DOI : 10.5370/JEET.2012.7.5.759
Title & Authors
Microwave Hyperthermic Lipolysis Using External RF Antenna Hwang, Joo-Sung; Woo, Tae-Hee; Park, Sang-Bok; Cheon, Chang-Yul;
In this paper, we propose a microwave hyperthermic lipolysis method to reduce subcutaneous fat without skin burn using external RF antenna. Since skin is closer to the antenna and has higher conductivity compared to the fat beneath, the temperature of the skin rises higher than that of the fat when the external antenna illuminates EM energy into a body, which may cause skin burn. In order to avoid the damages on skin, a skin cooling system is employed to the external antenna. The operating frequency is set at 5.8 GHz which is one of the ISM bands, to concentrate EM power efficiently on fat and not to heat up the muscle behind the fat. The operation time and RF power level has been determined based on experimental results with pork. The feasibility of the proposed method was shown by applying the method to the rat.
Non-invasive hyperthermia;Lipolysis;Dielectric heat of adipose tissue;
Miwa H, Kino M, Han LK, Takaoka K, Tsujita T, Furuhata H, Sigiyama M, Seno H, Morita Y, Kimura Y, Okuda H, "Effect of ultrasound application on fat mobilization," Pathophysiology, vol.9, no.1, pp. 13-19, 2002
Deok-Sang, Hwang, Soo-Jeong Ahn, Kyung-Sub Lee, Jeung-Shin Kim, Yong-Suk Kim, Hyun-Taeg Shin, "Effect of Electro-acupuncture on Regional Fat by Measuring Thigh Circumference," Journal of Korean Oriental Association for study of Obesity, vol.5, no.1, pp. 1-8, 2005
Seung-Uoo Shin, Young-Min Choi, Woojin Shim, Hyung-Chul Lee, Kil-Soo Kim, "Effects of High Frequency Therapy on Localized Obesity," Journal of Korean Oriental Association for study of Obesity, vol.6, no.2, pp. 75-83, 2006
Jae-Hyeong Lee, Electrical Therapy, Daihaks publishing company, pp. 437-489, 1995
Fawwaz T.Ulaby, Richard K.Moore, Adrian K.Fung, MICROWAVE REMOTE SENSING ACTIVE AND PASSIVE VOLUME Ι, Addison-Wesley Publishing Company pp. 78-82, 1981.
T. M. Uusitupa, S. A. llvonen, I. M. Laakso, and K. I. Nikoskinen, "The effect of finite-difference timedomain resolution and power-loss computation method on SAR values in plane-wave exposure of Zubal phantom," Physics in Medicine and Biology, vol.53, no.2, pp. 445-452, 2008.