Patent ID: 7485108
Filing Date: 2009-02-03
Classification: A61M

Abstract:
1. A catheter comprising: a first catheter tube having a proximal end and a distal end, the first catheter tube including an inner layer formed of a first material and an outer layer formed of a second material, each of the inner layer and the outer layer extending from the proximal end to the distal end of the first catheter tube, the first and second materials having mechanical properties differing from one another, the inner layer defining a lumen in the first catheter tube and the outer layer defining an outer surface of the first catheter tube; a polymeric mediator layer disposed between the inner layer and the outer layer such that the inner layer is not in direct contact with the outer layer, the mediator layer having an outer surface adhered to the outer layer and the mediator layer having an inner surface adhered to the inner layer; and a balloon sealingly surrounding the first catheter tube; wherein the first material comprises high-density polyethylene and the second material comprises a polymer.