A method for placing a stent into a main vessel such that the stent side hole
aligns
with a branch vessel ostium comprises inserting a main vessel guidewire into the
main vessel and a branch vessel guidewire into the main vessel until a distal end
of the branch vessel guidewire passes into the branch vessel. A catheter system
is positioned over the main vessel guidewire and the branch vessel guidewire. The
catheter system is advanced over the guidewires until the catheter body passes
beyond the ostium of the branch vessel and the side member extends into the branch
vessel. Marker separation is observed to indicate the catheter body passed beyond
the ostium and the side member extends into the branch vessel. The balloon is inflated
to deploy the stent with the side hole being aligned with the ostium. The balloon
is deflated, and the catheter system is withdrawn.
