Elana Surical Kit HUDThe Elana Sutrgical Kit HUD contains: The Elana Laser Catheter 2.0, The Elana Rings 2.6&2.8 and a vacuum extension tube.The Elana Surgical Kit HUD, when connected to the Spectranetics Xenon-Chloride Laser Model CVX-300, is indicated for creating arteriotomies during an intracranial vascular bypass procedure in patients 13 years of age or older with an aneurysm or a skull base tumor affecting a large [> 2.5 mm], intracranial artery that failed balloon test occlusion, cannot be sacrificed, or cannot be treated with conventional means due to local anatomy or complexity.