Patent ID: 7351238
Filing Date: 2008-04-01
Classification: A61M

Abstract:
1. A catheter for performing an intravascular procedure, comprising a) a catheter shaft comprising an inner and outer tubular member fixedly secured together, and the inner tubular member defines a first lumen located within the inner tubular member, and the inner tubular member has an outer diameter that is smaller than an outer diameter of the outer tubular member, and the inner tubular member is disposed within the outer tubular member such that a second ring-shaped lumen extends between an inner surface of the outer tubular member and an outer surface of the inner tubular member; b) a side wall which extends longitudinally along the outer surface of at least a portion of the inner tubular member within the second lumen and which defines a third lumen configured to receive a mandrel, and which is radially spaced apart from the inner surface of the outer tubular member by the second lumen extending fully around an inner circumference of the outer tubular member, the side wall having an outer diameter measured through a center of the third lumen that is smaller than an outer diameter of the inner tubular member measured through a center of the first lumen; and c) a mandrel in the third lumen.