Patent ID: 7959667

Claim:
A stent delivery balloon catheter, comprising: a) an elongated shaft, having i) a proximal section having a first inflation lumen; ii) a bifurcated distal section having a first branch with a second inflation lumen within at least a portion thereof, and a second branch with a third inflation lumen within at least a portion thereof, the second and third inflation lumens each being in fluid communication with the first inflation lumen, the bifurcated distal section further having a secured portion along which the first and second branches are permanently secured together, and an unsecured portion proximally adjacent to the secured portion and along which the first and second branches are not secured together; iii) an intermediate section joining the proximal and distal sections together, and having a fourth inflation lumen in fluid communication with the first, second, and third inflation lumens; and iv) a joining wire lumen extending within the proximal section, the intermediate section, and the first branch, and a guidewire lumen extending within at least the intermediate section and the second branch; and b) a first balloon on the first branch having an inflatable interior in fluid communication with the second inflation lumen, and a second balloon on the second branch having an inflatable interior in fluid communication with the third inflation lumen, and the inflatable interior of the first balloon and the inflatable interior of the second balloon are located distal to the secured portion of the bifurcated distal section; c) a coupler secured to the second branch, located distal to the inflatable interior of the second balloon, and configured for releasably coupling the first and second branches together to form a coupled configuration; d) a polymeric radiopaque distal tip marker surrounding a distal end section of the joining wire lumen, located distal to the inflatable interior of the first balloon, and formed of a blend of a polymeric material and radiopaque material; and e) a stent releaseably mounted on the first and second balloons, located distal to the secured portion of the distal shaft section.