Patent ID: 8308793

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; (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 the main balloon when inflated; and (c) a side catheter branch arrangement including: i. a sleeve member defining a sleeve lumen, the sleeve member being fixed axially relative to the main catheter branch, wherein the sleeve member includes a distal end positioned within the stent; and ii. a side guidewire housing defining a guidewire lumen, the side guidewire housing extending through the sleeve lumen and being axially moveable through the sleeve member, the side guidewire housing extending through the side branch aperture of the stent.