| 摘要 |
PROBLEM TO BE SOLVED: To provide an apparatus, instrument, and method for positioning the same proximate to a target site within a body lumen.SOLUTION: An apparatus includes first and second components 110, 120 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 140 near one end that can be received by a corresponding end 155 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. |
