Not quite. The researchers also tested the thread in a life-size silicone replica of the brain’s major blood vessels, including clots and aneurysms, modeled af

Not quite. The researchers also tested the thread in a life-size silicone replica of the brain’s major blood vessels, including clots and aneurysms, modeled after the CT scans of an actual patient’s brain. So no, not a brain. Silicone tubes. On a table somewhere. They're happy to talk it up like its an actual in-vitro human brain though.