Provide a system and method for use in NOTES so as to reduce surgical invasiveness. An insertion body that is connected by an anvil assembly and joined to a thin wire guide (electric guide wire), is inserted via a natural orifice into a hollow organ so as to incise and remove a diseased or defective site from the hollow organ by using a pair of (front-end/rear-end) linear cutters of a linear cutting/stapling device (linear stapler), after which the two cut ends of the tract are anastomosed and recovered by a circular anastomosis surgical stapler that is equipped with the system.
