On May 4th, the world's first non human primate invasive brain computer interface experiment was successfully conducted in Beijing. The experiment implemented an invasive brain computer interface brain controlled robotic arm in the monkey brain, which is of great significance for promoting research in the field of brain science and marking China's ranking among the international leaders in brain computer interface technology. This experiment was led by Professor Duan Feng from Nankai University and jointly completed with the General Hospital of the Chinese People's Liberation Army (301 Hospital) and Shanghai Xinwei Medical Technology Co., Ltd. This experiment is a further achievement based on the early animal (sheep) experiment of invasive brain computer interface, achieving a technological leap from passive acquisition to active control of invasive EEG signals, breaking through core technologies such as intravascular EEG signal acquisition and invasive EEG signal recognition. Brain computer interface technology can convert EEG signals into control commands, thereby helping patients with motor dysfunction (such as stroke, permafrost, etc.) interact with external devices and improve their quality of life. During the research process of this technology, it was found that invasive brain computer interfaces have significant trauma. For example, Musk's invasive brain computer interface test monkeys in the United States have already died; Non invasive brain computer interfaces are susceptible to the influence of brain volume conductor effects, resulting in poor long-term stability of EEG signals. The interventional brain computer interface led by Professor Duan Feng's team attaches the interventional EEG sensor to the cerebral vascular wall of monkeys through interventional surgery, allowing for the collection of intracranial EEG signals without the need for craniotomy. Compared to traditional invasive and non-invasive brain computer interfaces, it combines safety and recognition stability. The interventional operation of this trial was performed by the team of Wu Dongdong, a physician from neurosurgery Department of the First Medical Center of the PLA General Hospital. The invasive EEG sensor enters the sagittal sinus through the jugular vein and reaches the motor cortex of the monkey. Successfully collected and recognized non-invasive EEG signals from non-human primates after surgery, achieving active control of the robotic arm by the animals. According to Professor Duan Feng, the research results of the interventional brain computer interface experiment conducted in the brains of non-human primates have promoted the advancement of the interventional brain computer interface from laboratory prospective research to clinical application, and has broad market prospects in the field of brain disease medical rehabilitation in the future. (New News Agency)