Patent ID: 6296655
Filing Date: 2001-10-02
Classification: A61F,A61M

Abstract:
A balloon catheter, comprising:a) an elongated shaft having proximal and distal ends, a port in the distal end, an inner tubular member defining at least in part a guidewire lumen extending to and in fluid communication with the port in the distal end and an inflation lumen extending to a location spaced proximal to the distal end; andb) an inflatable deflated balloon on a distal portion of the elongated shaft and having an interior in fluid communication with the inflation lumen and having a first unwrapped configuration and a second wrapped configuration when the balloon is wrapped around the inner tubular member, the balloon in the first unwrapped configuration having a plurality of canted wings, each of which is formed to have a base inclined at an angle of about 15.degree. to about 75.degree. from a line at the base of said wing tangent to an exterior surface of the inner member, the angle being measured in a cross-sectional plane which is perpendicular to the longitudinal axis of said elongated shaft, and the balloon in the second wrapped configuration having a curvilinear junction between the base of the wing and a balloon section located between the wing and an adjacent wing.