tech
One brain-computer interface is installed without opening the skull—it is threaded into a blood vessel and guided up to the brain like a stent.
This device avoids open-brain surgery entirely, delivered through a vein like a cardiac stent and guided through blood vessels to a spot next to the motor cortex without opening the skull. From within the vessel, its electrodes still detect enough nearby neural activity to let a paralyzed user send commands to a computer.
It still relies on electrodes to sense brain activity, just positioned inside a vessel rather than on tissue, so claiming it needs none is wrong. It's also not limited to sleep; it's meant for use during ordinary waking activity.
By avoiding open-skull surgery, this endovascular approach could reach more patients with less risk and simpler recovery, potentially making brain-computer interfaces accessible beyond only the most severe surgery-eligible cases.
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