#$%^&*AU2013205892A120130606.pdf#####ABSTRACT 5 Exemplary embodiments provide methods and systems for delivering a prosthesis to a target location in a lumenal system of a patient. At least one tether is secured proximate the target location to serve as a rail, and a prosthesis is advanced along the rail to the target location and secured in place. Exemplary methods and systems provide for repair of the mitral and tricuspid valves, as well 10 as abdominal aortic aneurysms, stomach valves, fallopian tubes and the pulmonary system, among others. Also disclosed are various prostheses suitable for use with the disclosed methods and systems. 15
