A catheter assembly, comprising: a stent, the stent having a plurality of expandable struts that define a distal open end, a proximal open end, a side branch aperture, an exterior surface, and an interior volume of the stent; a first catheter branch, the first catheter branch including at least a main balloon member, a catheter shaft, a side inflation member, a side balloon member positioned on the side inflation member, and a main guidewire housing extending through the main balloon member, the first catheter branch extending through the interior volume of the stent from the proximal open end to the distal open end; a second catheter branch, the second catheter branch extending through the interior volume of the stent from the proximal open end and out through the side branch aperture; and a stent edge protect member separate from the main balloon, the stent edge protect member having a distal end portion positioned proximal of the stent proximal open end at a location adjacent to the proximal open end of the stent, the stent edge protect member positioned on at least one of the first and second catheter branches, at least the distal end portion of the stent edge protect member having a thickness measured in a radial direction that is at least as great as a thickness of the stent struts at the distal open end measured in the radial direction; wherein the stent edge protect member is positioned on at least one of the catheter shaft, the side inflation member, and the second catheter branch; wherein the stent edge protect member has a constant inner dimension and an outer dimension diminishing when moving from the distal end portion to a proximal end portion of the stent edge protect member. a stent, the stent having a plurality of expandable struts that define a distal open end, a proximal open end, a side branch aperture, an exterior surface, and an interior volume of the stent; a first catheter branch, the first catheter branch including at least a main balloon member, a catheter shaft, a side inflation member, a side balloon member positioned on the side inflation member, and a main guidewire housing extending through the main balloon member, the first catheter branch extending through the interior volume of the stent from the proximal open end to the distal open end; a second catheter branch, the second catheter branch extending through the interior volume of the stent from the proximal open end and out through the side branch aperture; and a stent edge protect member separate from the main balloon, the stent edge protect member having a distal end portion positioned proximal of the stent proximal open end at a location adjacent to the proximal open end of the stent, the stent edge protect member positioned on at least one of the first and second catheter branches, at least the distal end portion of the stent edge protect member having a thickness measured in a radial direction that is at least as great as a thickness of the stent struts at the distal open end measured in the radial direction; wherein the stent edge protect member is positioned on at least one of the catheter shaft, the side inflation member, and the second catheter branch; wherein the stent edge protect member has a constant inner dimension and an outer dimension diminishing when moving from the distal end portion to a proximal end portion of the stent edge protect member.