Patent ID: 8449497

Claim:
A balloon catheter assembly comprising: a polyamide tubular member having a proximal portion and a distal portion with a lumen extending between the proximal portion and the distal portion; a polyethylene terephthalate balloon having a proximal waist length, a distal waist length and an expandable region therebetween disposed about the distal portion; and a tie layer disposed between the proximal waist length or distal waist length and the first tubular member and having a length similar to the proximal waist length or the distal waist length, wherein the tie layer comprises a first polymer component and a second polymer component, the first polymer component possessing a greater bonding affinity for the polyethylene terephthalate balloon than does the second polymer component, the second polymer component possessing a greater bonding affinity for the first polyamide tubular member than does the first component.