**3.1 Establishment of artificial intelligence digital twin models in remote robotassisted surgery interactive processes**

In remote robot-assisted surgery, stereoscopic image processing and remote transmission are the main factors causing delays, making it difficult for doctors to obtain real-time information about the current movement of instruments within the body cavity. Therefore, using artificial intelligence technology, real-time monitoring of the surgical process can be achieved through 3D images and laser scanning, helping doctors to more accurately locate and handle problems during surgery. Artificial intelligence can also apply digital twin technology to the surgical process and perform twinning of the expected movements of instruments in real time at the doctor's end. By establishing a digital representation of the entity model's geometric dimensions, physical relationships, and motion behaviors in multiple dimensions and expressing the entity's characteristics using mesh simplification and entity rendering methods, a twinning model of instrument movement can be constructed. This twinning surgical instrument can interact with the main operating hand operated by the doctor in real time to reflect the ideal posture of the instrument under the current instructions of the doctor.
