Neurosurgical, neurophysiology and engineering teams operated together at the First Affiliated Hospital of Shandong First Medical University, also known as Shandong Provincial Qianfoshan Hospital. After localising the target, they fixed the interface chip to the skull and placed eight slender recording electrodes 4 mm below the surface of the cortex. The hospital says the electrodes are ultraflexible, roughly one percent the width of a human hair, and cause almost no tissue damage going in. The implant is meant to bypass the damaged spinal cord, picking up movement intent in the brain and passing it to external devices as control signals.
Xu now faces one to six months of one-on-one training with rehabilitation specialists and engineers before he can control anything by thought. The programme is run by Shandong First Medical University’s Clinical and Translational Center for Brain-Computer Interfaces, led by an academician, the highest academic rank in China, working with a corporate partner the report declines to name. This is trial-stage surgery, not care a patient in China can currently ask for.