In various embodiments, it provided herein is method, devices and system in cardiovascular anatomy of this group of challenge to optimize the annular orientation of transcatheter valve consequently facilitating transcatheter aortic valve replacement. These method, devices and system are used to handle the patient with valvular disease. In order to solve these problems, this document describes an equipment of the aNnUlar of optimization Transcathether valves (donut) orientations. Donut can correct larger difference between the level face and external dimensions of the tissue of a native valve of a transcatheter valve bracket frame.
