Power switching mechanism of surgical instrument and surgical instrument adopting power switching mechanism

The utility model discloses a power switching mechanism of a surgical instrument and the surgical instrument adopting the power switching mechanism. The power switching mechanism comprises a base, a driving power source, a power switching assembly, a sliding gear, a tool feeding and retracting transmission chain and a deflection transmission chain. The power switching assembly is used for controlling the position of the sliding gear and transmitting power output by the driving power source to the tool feeding and retracting transmission chain or the deflection transmission chain. The device can achieve stable and controllable power switching, the number of driving power sources can be reduced, and the weight of the device is reduced. The device is simple in structure, low in cost, easy toassemble and wide in market prospect, and parts are easy to manufacture. 一种手术器械的动力切换机构及采用其的手术器械。该动力切换机构包括基座、驱动动力源、动力切换组件、滑移齿轮、进退刀传动链和偏转传动链；其中，动力切换组件用于操纵滑移齿轮的位置，分别用于将驱动动力源输出的动力传输到进退刀传动链或偏转传动链。本实用新型的装置可实现平稳、可控的动力切换，可以减少驱动动力源的数量