A catheter assembly, comprising: a delivery catheter (401) including a lumen (403) and a distal end opening (409) and a balloon catheter positioned in the catheter lumen, the balloon catheter including a balloon catheter body (101) with an inflation lumen and an opening (407) in fluid communication with the inflation lumen, and an inflatable member (105) including a distal end fixed at a distal end of the balloon catheter body and a proximal end coupled to a movable member (201).
