Different from ordinary scalpels, ordinary scalpels are similar to ordinary small knives, and cut metal directly; while minimally invasive scalpels are electric scalpels, which perform electric cutting and electrocoagulation by controlling the current. Because the scalpel has a hemostatic function, it is called a hemostatic knife Yes, there are many high-frequency electrosurgical units, ultrasonic units, argon units, etc. Let the incision bleed as little as possible, or even not bleed, which is convenient for operation and reduces bleeding for patients.