way valve positioned in the aorta having a collapsible frame that is expanded upon deployment and or a temporary dilation device positioned in the descending aorta for expanding upon deployment to increase the diameter of the associated portion of the aorta when used together the dilation device is positioned distal to the temporary one way valve application_number US 97556707 A description in general the components of a collapsible valve assembly 100 as inserted in a thoracic aorta 2 are illustrated in fig1 a for one embodiment of the invention it should be noted that not all of the component elements shown are required for each exemplary embodiment illustrated herein examples of such possible variations will be described with reference to the various drawings the components shown include an expandable frame 10 comprising a plurality of radially outwardly biased wires 4 or bands joined together at least at one end 12 to form a cage like structure that may be open at the end opposite the joining point still other frame structures are discussed with respect to other of the present drawings the collapsed diameter dimension of the valve assembly 100 is between 2 mm and 5 mm and the expanded diameter dimension of the frame 10 suitable for application in an adult patient is between 20 mm and 35 mm the wires 4 may be joined by welding or other adhesive means to a hollow cylinder 20 see fig5 c or directly to each other at the apex 12 of the conic or bulbous frame 10 and to an elongated control element 22 that extends out of the body through the remote percutaneous access site not shown the control element.