Fu's Subcutaneous Needle (FSN), invented by Dr. Zhonghua Fu in 1996, is an innovation for the treatment ofmyofascial pain and trigger points based on the research and clinical findings of Dr. D. Simons and Dr. Janet G. Travell.
Originating from Traditional Chinese Medicine (TCM). The similarities are limited to the distal insertion of the needle to the affected area, the needle itself being a non-injection needle, and the fact that both needles are manipulated and act on soft connective tissue. FSN abstains from the muscle and deep fascia layers and is confined to only the subcutaneous layer where collagen fibers are most abundant. As the subcutaneous layer is poorly innervated, pain is less than other needling therapies.
FSN is also currently being used successfully to treat non-musculoskeletal conditions; however more research is to be carried out to conclude these findings.
The FSN needle is a modified trocar needle similar to an I.V. Catheter and has been patented in China. There are 3 parts to the needle: soft tube, protecting sheath, and needle core. The needle core is 31 mm in length and 1 mm in diameter. Each needle is individually packaged and sterilized with ethylene oxide gas.
Zhonghua Fu runs a successful pain clinic in Nanjing, China affiliated with Nanjing University of Chinese Medicine. At the FSN clinic for pain medicine, FSN is used as the sole means to treat musculoskeletal disorders and some chronic benign visceral disorders.
Fu originally trained as a TCM doctor, completing his masters in acupuncture. While practicing and teaching traditional acupuncture in Guangzhou, he realized that several innovations were needed to improve and accelerate the acupuncture effect. Because some techniques for painful problems in the ancient HUANGDI INTERNAL CLASSIC were punctured obliquely surrounding some painful spots, Fu thought inserting horizonally is a good choice, and then FSN came into being after a number of trials.
After completing his Ph.D, Fu conducted research in his lab for 2 years on arthritic rats. During these trials, when the needle was inserted into the local point of sensitivity, there were no profound changes in VAS and Range of Movements. Notable changes in VAS and Range of Movements were observed however when the needle was inserted parallel to the skin surface.
Dr Yuhong studied Fu Zhen with Dr Zhonghua Fu in Nanjing,China in 2002.