Bifurcated Catheter Joints

An over-the-wire bifurcate stent delivery system, comprising:

• a proximal shaft comprising a first lumen configured to receive a first guidewire, a second lumen configured to receive a second guidewire, and a third lumen configured to receive an inflation fluid;
• a distal section comprising a first inner shaft defining a first guidewire lumen, a second inner shaft defining a second guidewire lumen, and an outer casing that surrounds the first and second inner shafts and defines an outer inflation lumen;
• a joint coupled between the proximal shaft and the distal section, the joint comprising a proximal portion and a distal portion, the distal portion being configured to receive a proximal end of the distal section, and the proximal portion being configured to receive a distal end of the proximal shaft so that the first lumen in the proximal shaft is connected to the first guidewire lumen, the second lumen in the proximal shaft is connected to the second guidewire lumen, and the third lumen of the proximal shaft is connected to the outer inflation lumen.

A joint for coupling a proximal shaft to a distal section of an over the wire bifurcate stent delivery system, the proximal shaft comprising a plurality of lumens, the distal section comprising a plurality of lumens, the joint comprising:

• a distal portion configured to receive a proximal end of the distal section;
• and
• a proximal portion configured to receive a distal end of the proximal shaft so that a first lumen in the proximal shaft is connected to a first distal inner lumen in the distal section, a second lumen in the proximal shaft is connected to a second distal inner lumen in the distal section, and a third lumen of the proximal shaft is connected to an outer lumen in the distal section.