Heat Transfer Involved in a Warm (Moxa-Heated) Needle Treatment

Abstract

A numerical study was performed to reveal the temperature distributions in tissues around the GB38 acupoint during the warm (moxa-heated) needle treatment (WNT). The proposed WNT model involves a needle, needle handle and the calf section around the GB38 acupoint. For validating the numerical results, measurement using the calibrated infrared (IR) camera was also conducted. Our aim was to calculate the skin surface temperature and the temperatures under warm needle at different depths beneath the skin. From the temperature profile along the centerline of the acupuncture needle, the temperature is seen to decrease rapidly from the burning moxa section (200 °C) to the skin surface (36 °C). The temperature near the needle (36 °C) is only 1 °C higher than those predicted at other places (-35 °C). This phenomenon explains why this treatment practice is called the warm needle rather than the hot needle treatment

Keywords

Warm (moxa-heated) needle Infrared Temperature GB38 acupoint

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References

Tsuei

J. J.

The science of acupuncture—theory and practice. IEEE Engineering in Medicine and Biology. May/June, pp. 52–57, 1996.

Wiseman

, and Feng

A Practical Dictionary of Chinese Medicine. Paradigm Publications, Brookline, MA, pp. 664, 1998.

Jiang

, and Li

Therapeutic effect of needle warming through moxibustion at twelve shu points on rheumatoid arthritis. Journal of Traditional Chinese Medicine. Vol 19 (1), pp. 22–26, 1999.

Unschuld

P. U.

Introductory Readings in Classical Chinese Medicine. Kluwer Academic Publishers, Dordrecht, Holland, 1988.

CFD-ACE-GUI User Manual VolumeII. CFD Research Corporation, pp. 85–94, 2003.

Therma CAM SC500 Operator's Manual. FLIR Systems, 1999.

The engineering toolbox. Tools and Basic Information for Design, Engineering and Construction of Technical Applications, http://www.engineeringtoolbox.com/.