Getting a brain implant has always meant opening the skull. A Shanghai-based startup says it has found a way around that, threading its device through a neck vein and into the brain in a procedure it claims takes just ten minutes.

StairMed Technology's approach avoids the surgical robot and skull-opening process that devices like Neuralink require. Instead, co-founder Zhao Zhengtuo said at the Global Health Summit in Hong Kong that the device enters through a vein in the neck and travels through the vascular system to........

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