1. Power driven operations reduce the firing force significantly: 2. Standardize the clinical outcomes: Maintain same level of standard and accuracy in spite of who/when is using it; The user interface is all combined into "2 button press" – standardized operations. 3. Intuitive design allow users a quick plug in: Combine all kinds of mechanical mechanism to one unique handle without sacrifice any clinical requirement, you can quickly understand how to use the device when you hold it on hand, allow surgeon concentrate on their patients. 4. Design of earthward: save materials and energy.