“…A method of strengthening this non-contact coagulation spray with argon gas has been proposed and is widely used to achieve hemostasis using a flexible endoscope and during laparotomy [ 4 ]. However, due to the use of argon gas, this process is expensive [ 5 ]. The spray coagulation is conducted without the electric scalpel tip contacting the cauterized surface; therefore, the time required for coagulation and hemostasis may be problematic.…”