Patent ID: 8377083

Claim:
A percutaneous method for creating a venous valve from autologous tissue, the method comprising the steps of: advancing a balloon catheter to a target site, wherein the balloon catheter includes a balloon having at least one dissecting blade coupled to the balloon; inflating the balloon of the balloon catheter to deploy the at least one dissecting blade against a wall of a vein; longitudinally translating the balloon catheter such that the at least one dissecting blade penetrates into the vein wall and forms a subintimal longitudinal dissection of at least intimal tissue of the vein wall that is separated from remaining tissue of the vein wall; deflating the balloon of the balloon catheter such that the at least one dissecting blade separates the subintimal longitudinal dissection of tissue from the remaining tissue of the vein wall and pulls the subintimal longitudinal dissection of tissue into a lumen of the vein and thereby simultaneously forms a flap of tissue and a sinus between the flap and the remaining tissue of the vein wall, wherein the flap and the sinus constitute at least a portion of the venous valve.