Patent ID: 9555165
Date: 2017-01-31
CPC Classifications: A61L,A61M

Claim:
1. A catheter comprising: an elongated shaft having a distal end, the elongated shaft including an outer tubular member having a proximal end, a distal end, and a lumen therethrough, an inner tubular member having a proximal end, a distal end, and a lumen therethrough for receiving a guide wire, wherein the outer tubular member surrounds at least a length of the inner tubular member and the inner tubular member extends distal of the distal end of the outer tubular member; and an inflatable member adjacent the distal end of the elongated shaft, the inflatable member having a proximal end and a distal end, wherein the proximal end is attached to the outer member and the distal end is attached to the inner member; wherein at least one of the outer tubular member and the inner tubular member includes a tubular member made of at least a first polymer with a first durometer and a second polymer with a second durometer different from the first durometer, the first and second polymer being in alternating, circumferentially arranged, discrete arc widths with the same radial thickness such that the arc width of a first polymer is three times the arc width of the second polymer.