Assemblies, devices, and methods for positioning the same proximate a target site within a body lumen are provided. The assembly includes first and second components that can function independently of one another to address a patient’s vascular abnormalities or can cooperate to form an assembly. The assembly is designed to address aortic pathologies near clusters of arterial branches in a way that allows blood to continue flowing to the arterial branches during the procedure while providing an adequate landing zone for the adjoining component. One of the components may include a tapered portion near one end that can be received by a corresponding end of the other component.Alternatively, one of the components may include an invaginated end that is able to receive a corresponding end of the other component such that the position of each component is substantially fixed with respect to the other.提供用於定位相同鄰近體腔內的目標部位之組件、裝置與方法。該組件包括第一與第二元件,其可彼此獨立地作用,以解決病患的血管異常或可配合而形成一組件。將該組件設計以在提供足夠的停放區給鄰接的元件之程序期間,以容許血液繼續流至動脈分支的方式而解決接近動脈分支群集的主動脈病理學。元件中的一者可包括一錐形部,該錐形部接近可被其他元件的相對應端所接納的一端。替代地,其中一個元件可包括一凹入端,該凹入端能夠接納其他元件的相對應端,使得每個元件的位置係大體上關於其他者而固定。100...管狀組件110、120...元件111、112、121、122...開窗130、135、150、155...端140、160...錐形部