The present invention relates to a device for changing a course of a vessel, a method of introducing the device, a method of changing a course of a vessel using the device, and a treatment method of brain-nervous system diseases, such as neurovascular compression syndrome, using the device. In treating a neurovascular compression syndrome, the present invention can reduce risks and side effects of the microsurgery (MVD), such as hearing loss or facial paralysis that may occur due to the microsurgery. Further, since an area of a metal surface is small, a risk of in-stent stenosis or thrombus generation is low even in a vessel of the brain having a small diameter, and a degree of vascular compression by its radial force is low, thereby making it possible to minimize intimal hyperplasia.