Patent ID: 9034025
Filing Date: 2015-05-19
Classification: A61F,A61M

Abstract:
1. A method for flaring a stent previously deployed within a branch body lumen including an ostium communicating with a main body lumen, a first end of the stent extending at least partially from the branch body lumen into the ostium, the method comprising: providing an elongate member including a proximal end, a distal end, a first balloon carried on the distal end that includes a substantially uniform diameter main section when expanded, and a second balloon carried on the distal end that includes a distal section overlying at least a portion of the uniform diameter section of the first balloon and a proximal section extending proximally from the distal section and the first balloon, wherein the second balloon is formed from compliant material molded to a shape in which the proximal section has a bulbous shape defining a first diameter and the distal section has a substantially cylindrical shape defining a second diameter smaller than the first diameter; introducing the distal end into the main body lumen; positioning the distal end of the elongate member through the ostium and stent into the branch body lumen until the main section is disposed within the stent; expanding the first balloon to substantially anchor the stent axially relative to the branch body lumen; and expanding the proximal section of the second balloon to flare the first end of the stent within the ostium.