Systems and methods for improved retention of stents on a delivery system

A delivery system for use in a medical procedure, comprising:

• a catheter having proximal and distal regions, and an exterior surface;
• a balloon having proximal and distal ends, and further having interior and exterior surfaces,
• wherein the proximal end of the balloon is secured to the exterior surface of the catheter at a first location, and wherein the distal end of the balloon is secured to the exterior surface of the catheter at a second location, wherein the second location is distal to the first location;
• a plurality of bands, wherein each of the plurality of bands are disposed in a circumferential space situated between the exterior surface of the catheter and the interior surface of the balloon;
• a covered stent having a covering including proximal and distal ends, wherein multiple stents are discretely spaced-apart in an axial direction from one another between the proximal and distal ends of the covering,
• wherein the multiple stents each have a compressed delivery state and an expanded deployed state, and wherein the multiple stents are secured to the exterior surface of the balloon in the compressed delivery state.

A method for securing at least one stent to a catheter, comprising:

• providing a catheter having a balloon secured to an exterior surface of the catheter at first and second locations, and wherein a plurality of bands are disposed in a circumferential space situated between the exterior surface of the catheter and the interior surface of the balloon,
• wherein the plurality of bands comprise at least four bands that are discretely spaced-apart in an axial direction from one another along a length of the catheter;
• and
• crimping at least one stent to the exterior surface of the balloon, wherein upon crimping the at least stent engages at least one of the plurality of bands to enhance securement of the at least one stent relative to the catheter in the compressed delivery state.