Patent ID: 6946173
Filing Date: 2005-09-20
Classification: A61L,A61M,Y10T

Abstract:
1. A balloon catheter, comprising: a) an elongated shaft having a proximal end, a distal end, and an inflation lumen; and b) a balloon having a first layer formed of a porous polymeric material with a coating of an elastomeric polymeric material on a surface of the first layer, and with the elastomeric polymeric material impregnating the porous polymeric material of the first layer; and a second layer heat fusion bonded to the first layer and formed of a polymeric material compatible with, and different than, the elastomeric polymeric material of the first layer so that the polymeric material forming the second layer forms a heat fusion bond to the elastomeric polymeric material of the first layer to thereby fusion bond the first and second layers together without an adhesive between said first layer and said second layer, the second layer having a radial tensile set of about 0% to about 10% based on a radial expansion of at least about 300% of an initial diameter.