The product can perform precisely and efficiently while thermal damage is reduced. The dissection is done accurately and delicately by the help of product which is curved shear. The efficient performance and its ergonomics give a huge benefit to the users. The dissection can be done more securely near the vital structures by which the damage of lateral thermal tissue is reduced. The product can move fast through tissues while haemostasis is maintained. The exchanges of instrument are not involved for dissect, cut, grasp and coagulate. The vessel is seal and divided to 5mm including lymphatics. The usage of product is like conventional dissection instrument.