Meridian is the channel of qi and blood nutrition, and the obstruction of meridian will lead to sub-health and even disease. Therefore, it is a very scientific way to keep in good health to dredge meridians frequently. The function of Yijing Xuetong Tongluo Health Care Instrument is mainly to open the twelve meridians and Ren Du meridians in the body with sound. Under the guidance of meridian stream, it can effectively purify blood, detoxify and release, and help to keep fit.