The medical device that is different from the Wantong Tendon Patch is a topical drug that is commonly used clinically, the main function is to relieve tendons and blood, dispel wind and relieve pain, the price of this drug is about 20 yuan a box, while the medical device, the Wantong Tendon Patch, a box is about 15 yuan. The reason why it is called a medical device is because of the use of special materials to make a kind of external therapeutic device that can play a heating role, the effective ingredients of this product can absorb external radiation, the role of local heating, so as to relieve the role of local blood circulation disorders, but also has a slight improvement in the role of local inflammation. For chronic soft tissue inflammation, or chronic injury resulting in pain symptoms have a certain effect.