China has completed the world’s first commercial surgery using an invasive brain-computer interface (BCI) device approved in March, marking a leap in the country’s neurotechnology push to rival Elon Musk’s Neuralink.Chinese surgeons implanted a coin-sized brain chip on a patient with impaired hand mobility linked to a spinal cord injury from a car accident 10 years ago, according to a statement from the Science and Technology Commission of Shanghai Municipality on Wednesday.The procedure,...