China: Paralyzed patient regains limb function with new brain-chip

A research team led by Professor Duan Feng at Nankai University in China has conducted the world’s first human trial of a brain-computer interface (BCI) implanted via blood vessels, enabling a 67-year-old stroke patient with hemiplegia to regain voluntary limb movement. Unlike more invasive methods such as Elon Musk’s Neuralink, this minimally invasive procedure involved inserting a stent electrode with 50-micrometre thick electrodes into the patient’s brain blood vessels through a vein in the neck. The electrodes connect wirelessly to an implanted device, allowing real-time EEG signal transmission and functional electrical stimulation that supports motor training and neuroplasticity. Following treatment, the patient regained the ability to grasp objects and perform daily tasks without side effects like infection or thrombosis. This breakthrough builds on prior animal studies where BCIs controlled movements in sheep and monkeys, marking a significant advancement in interventional BCI surgery. The Chinese trial demonstrates not only the safety and efficacy of this minimally invasive approach but