Patent ID: 8353867

Claim:
A balloon catheter, comprising: a balloon; a first tubular member disposed along a proximal portion of the balloon catheter, the first tubular member having an outer surface; a second tubular member disposed along a distal portion of the balloon catheter, the second tubular member having an inner surface; wherein the inner surface of the second tubular member overlaps with and is attached to the outer surface of the first tubular member; and a tubular inner member comprising a tubular proximal portion and a tubular distal portion, wherein the second tubular member and the inner member cooperate to define an inflation lumen fluidly connected to the balloon, wherein the tubular inner member has a proximal end coupled to the second tubular member, a distal end, and defines a guidewire lumen between the proximal end and the distal end, wherein the distal portion of the inner member is at least partially disposed in the balloon, wherein the proximal portion of the inner member has an inner diameter and wherein the distal portion of the inner member has an inner diameter that is less than the inner diameter of the proximal portion of the inner member, and wherein the distal portion of the inner member has been circumferentially rotated with respect to the proximal portion of the inner member to impart a degree of angular alignment to a material of the inner member.