Vascular stenting for aneurysms

摘要

Described herein are flexible implantable occluding devices that can, for example, navigate the tortuous vessels of the neurovasculature. The occluding devices can also conform to the shape of the tortuous vessels of the vasculature. In some embodiments, the occluding devices can direct blood flow within a vessel away from an aneurysm or limit blood flow to the aneurysm. Some embodiments describe methods and apparatus for adjusting, along a length of the device, the porosity of the occluding device. In some embodiments, the occluding devices allows adequate blood flow to be provided to adjacent structures such that those structures, whether they are branch vessels or oxygen-demanding tissues, are not deprived of the necessary blood flow.

主权项

1. A method of implanting a stent at an aneurysm in a blood vessel, the method comprising:
advancing, within the blood vessel, an elongate body comprising a proximal portion, a distal portion, and a lumen extending between the proximal portion and the distal portion, until the distal portion is proximate to the aneurysm; advancing, relative to the elongate body and from within the lumen of the elongate body, a stent in a compressed configuration; expanding the stent within the vessel, such that the stent extends from a first location distal to the aneurysm to a second location proximal to the aneurysm; and following the expanding the stent and upon confirming that a body of the aneurysm has more than about 30% occlusion formation forming partial occlusion of the aneurysm, wherein said occlusion formation is indicative of a correlated level of thrombosis, withdrawing the elongate body from the vessel.