The role of external short wave tuning

Short wave refers to radio waves with a frequency of 3 ~ 30 MHz, and the frequency range of short wave in China is 2 ~ 24 MHz. The characteristic thermal effect of short-wave therapy: it can increase the internal temperature of prostate, dilate blood vessels, enhance local blood circulation, accelerate the transport of oxygen and nutrients and excretion of metabolites, increase the permeability of acinus and glandular duct, help prostate to produce various immunoglobulins and synthesize zinc-containing peptides with anti-infection effect, enhance the function of large and small phagocytes and promote the dissipation and absorption of inflammation. The magnetic field function of rotating magnetic therapy: it can relieve the spasm of striated muscle and smooth muscle, reduce muscle tension, skin sensation and nerve excitability, relieve the pressure of inflammatory swelling on nerve endings, correct the pain caused by the accumulation of pain substances caused by ischemia, hypoxia and edema, and achieve the purpose of systemic analgesia. Pulse vibration: it can reduce the tension of filling glands, change the permeability of prostate capsule, make drugs reach prostate tissue easily, and is beneficial to drug absorption and achieve therapeutic purposes. Various reasons of short wave interference: lightning interference in summer; Indoor microwave oven, induction cooker, etc. Radiation interference from high-power motors and high-voltage power lines in neighboring factories; The power line of trams on the road and the spark discharge radiation interference of motors of various motor vehicles; There is high-power high-frequency radio wave radiation interference nearby; Such as taxi 27MHZ radio intercom; Professional short-wave communication stations, wireless mobile phones, listening places near FM, radio and television transmitting stations with high transmission power, etc ... Development history of hyperthermia machines: Hundreds of hospitals at home and abroad have proved that hyperthermia has a significant effect on inflammation and tumors after tens of thousands of clinical trials. 1975 the first international symposium on hyperthermia was held in Washington, USA. After that, in addition to the international hyperthermia conference, there are several regional conferences such as European hyperthermia conference, North American hyperthermia conference, Japanese hyperthermia conference and Asian hyperthermia association conference, which are held once a year. As early as 1980s, Japan developed a capacitive hyperthermia machine-Thermotron-RF8, which achieved good results in the treatment of inflammation and tumor. Subsequently, the United States, Italy, Switzerland, Germany, the Netherlands, the Soviet Union and so on have also produced similar products for the treatment of inflammation and tumors, and achieved remarkable results. 1980 the first national conference on hyperthermia was held in China. The content of the conference is not limited to clinical research, but also involves thermobiology, heating and temperature measurement technology. The 8th National Conference on Hyperthermia held in 2008 involved radiotherapy, physiotherapy, chemotherapy and surgery, gynecology, thoracic surgery, urology, orthopedics, biology, physics, nursing and other majors.