The Navien™ A+ Intracranial Support Catheter is a single lumen, flexible, variable stiffness composite catheter. The catheter shaft has a hydrophilic coating to reduce friction during use. The Navien A+ Intracranial Support Catheter shaft is visible under fluoroscopy. The Navien A+ Intracranial Support Catheter dimensions are included on the individual device label. The Navien A+ Intracranial Support Catheter inner lumen can accommodate guide wires up to 0.038 inches in diameter to aid in placement of the catheter system. The proximal end of the Navien A+ Intracranial Support Catheter has a luer fitting to allow attachment of accessories and infusion of liquids through the system. The Navien A+ Intracranial Support Catheter is offered in various sizes to accommodate physician preferences and anatomical variations. The catheter is provided sterile, nonpyrogenic, and is intended for single use only.