. 5B is a side view of the alternative embodiment of FIG. 5A. [0038]FIG. 5C is a side view of another embodiment of FIG. 2. [0039]FIG. 6 illustrates an alternative embodiment of the intravascular balloon catheter of the present invention, shown with the tubular catheter body and first balloon structure separated from one another. [0040]FIG. 7 is a cross-sectional view taken along line 7-7 of FIG.