Is da Vinci robotic surgery done by a robot or by a doctor, and does the robot malfunction during surgery?

The da Vinci surgical robot, although called a robot, is fully controlled by the doctor! The robot is just a surgical assist system. Some people will be worried about the robot in the body is not controlled, in fact, much to worry about, da Vinci surgical robot is not possible without the involvement of the doctor to carry out any activities; more can not be programmed by themselves, their own operation, after all, it is a tool, not a person. During use, the attending surgeon sits in front of the pass-through console and manipulates the robotic arm through the handle and foot pedal operation. There is also a very patient-safe design: on this console, there is a sensor on both sides of the ophthalmoscope that monitors whether the surgeon is watching the surgical field, and the arm locks as soon as the surgeon leaves the console, preventing the possibility of misuse. I'm happy to answer your questions.