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  • Intracranial vascular stents designed for deployment across the opening (i.e., neck) of a brain artery aneurysm to redirect the blood flow away from the aneurysm. The redirection of the blood flow usually causes that a blood clot is left inside the aneurysm, preventing the rupture of the aneurysm and eventually resulting in the aneurysm shrink in size. These stents typically consist of a self-expanding braided flexible metallic mesh (e.g., platinum and nickel-cobalt-chromium alloys); the stent is deployed using a guide wire and a delivery catheter usually through a femoral artery. Aneurysm blood flow diversion stents are mainly used in the treatment of large and giant aneurysms having from 11 to 25mm (or even more) in diameter, typically occurring in the internal carotid artery.
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