China has made new progress in invasive brain-computer interface clinical trials, as researchers announced the second successful case involving a paralyzed patient. The trial marked a major technological shift from two-dimensional cursor control to three-dimensional interaction in the physical world. The implanted system enabled the patient to control digital devices and operate embodied intelligent robots through neural signals. The trial demonstrated improved stability, low latency and enhanced brain-controlled performance, moving the technology closer to real world medical application.