Patent ID: 8333794

Claim:
A catheter assembly, comprising: (a) a stent, the stent having a distal open end, a proximal open end, and a side branch aperture, the side branch aperture positioned at a location between the distal and proximal open ends; and (b) a main catheter branch, the main catheter branch including: i. a catheter shaft; ii. a main guidewire housing; iii. a main balloon having a proximal end portion and a distal end portion; and iv. a side balloon positioned at a location between the proximal and distal end portions of the main balloon and extending radially outward relative to a top surface of the main balloon when inflated, the side balloon being in fluid communication with the main catheter branch through a proximal inflation segment and a distal inflation segment, the side balloon including two or more separate orientation indicators configured for orientation of the side balloon relative to the side branch aperture of the stent during assembly, wherein the two or more separate orientation indicators include a first assembly marking positioned centrally only on a top surface of the side balloon, wherein the top surface of the side balloon is on an opposite side of the side balloon from a bottom surface that faces the top surface of the main balloon, and at least a second assembly marking on one of the proximal and distal inflation segments adjacent the side balloon, wherein the two or more separate orientation indicators include a colorant of the side balloon that is different from a colorant of the main balloon, wherein the first and second assembly markings are located on the side balloon and inflation segment, respectively, such that the markings are viewable through the side branch aperture on the stent from above the top surface of the side balloon when the side balloon is positioned over the main balloon and the main and side balloons are positioned inside the stent during assembly of the catheter, wherein the colorant of the orientation indicators and the colorant of the main balloon are distinguishable by an individual during assembly.