Abstract: The present invention includes a device for X-ray treatment in a passage, a method for positioning an X-ray emitter at a treatment area in the passage, a method for exposing a length of the treatment area, and a method for moving a catheter automatically. In addition, the present invention includes a bellows valve adapter and a hemostasis valve adapter that allows fluid to circulate between a sheath and an X-ray emitter within the device and allows movement of the X-ray emitter within the sheath. Further, the invention includes a catheter pullback assembly for retracting or advancing an X-ray emitter, a system for X-ray treatment in a body, and a treatment system for controlling an X-ray emitter.

Abstract: An intravascular catheter having an elongated tubular body with a proximal portion, a distal portion and a lumen extending therebetween. The tubular body is formed with polymeric materials, preferably containing no radiopaque filler, and metallic reinforcing braiding configured to provide the catheter with radiopaque properties and/or kink resistance.