Patent ID: 8273120
Filing Date: 2012-09-25
Classification: A61F,A61M

Abstract:
1. A method of percutaneously delivering and deploying a prosthetic valve within an existing valve comprising: tracking a prosthetic valve delivery system through the vasculature to the existing valve, wherein the prosthetic valve delivery system includes a stented prosthetic valve having a balloon-expandable stent portion with a prosthetic valve component disposed therein and attached at each end to a respective self-expanding stent portion, and a dual balloon catheter having a first balloon with a first working diameter around which the stented prosthetic valve is disposed during delivery and a second balloon having a second working diameter that is greater than the first working diameter; positioning the first balloon with the stented prosthetic valve thereon within the existing valve to be replaced; releasing the self-expanding stent portions of the stented prosthetic valve into contact with the existing valve; expanding the first balloon to the first working diameter to expand the balloon-expandable stent portion of the stented prosthetic valve to a first diameter such that the stented prosthetic valve is in a first stage deployment configuration; manipulating the dual balloon catheter to position the second balloon within the stented prosthetic valve in the first stage deployment configuration; and expanding the second balloon to the second working diameter to expand the balloon-expandable stent portion of the stented prosthetic valve to a second diameter greater than the first diameter such that the stented prosthetic valve is in a second stage deployment configuration.