The present disclosure provides a knob assembly for a circular stapler, wherein the knob assembly includes a knob body and a knob driver, and the knob driver and the knob body are selectively linked with each other. Before the rotating resistance to the knob body reaches the preset resistance value, the knob driver can drive the knob body to rotate together, then the knob body can drive the anvil assembly through the screw rod, to move towards the cartridge along the axial direction of the stapler http://prntscr.com/15aje7u

мой вариант- ....привод ручки принуждает? заставляет? ручку вращаться вместе....