Mainly applicable to obstetrics and gynecology, general surgery, burns department, orthopedics and cosmetic surgery, etc. Utilizing the effect of human body temperature, the memory alloy wire recovers to its straight memory shape, exerting continuous apposition pressure on the skin on both sides of the incision, tightly bringing the skin on both sides of the incision together. The memory alloy moves synchronously with the entire process of the disappearance of incision edema and continues to automatically apply pressure, effectively reducing the amount of collagen exudation, thus achieving a good cosmetic effect when the incision heals.