Abstract: Disclosed are a robotic arm system and a surgical system. The robotic arm system includes a robotic arm and a motor driver. The robotic arm is provided with a base end and an end, the end is used to connect an electric tool for surgery, and the base end is used to fix the robotic arm. The motor driver is disposed on the end of the robotic arm, and the motor driver is configured to convert constant current from a power source into a variable current required by the electric tool. The robotic arm system is configured to form an electric connection between the electric tool and the motor driver when the electric tool is connected to the end.

Abstract: Disclosed are an actuator for hip replacement and a surgical system. The actuator for the hip replacement is configured to prepare a space for installing a prosthesis on a bone and implanting the prosthesis, which includes a first actuator and a second actuator. The first actuator is configured to connect a cutting tool to process an acetabulum and/or a medullary cavity, and the first actuator has a first connector and a second connector. The second actuator is configured to connect to the second connector of the first actuator during an operation of implantation of the prosthesis is performed, and connect the prosthesis and receive impact produced during installing the prosthesis. The actuator for the hip replacement is configured to be installed to a robotic arm via the first connector.