Patent ID: 6402720
Filing Date: 2002-06-11
Classification: A61M

Abstract:
A balloon catheter, comprising:an elongated proximal shaft having an inflation lumen; a distal portion extending distally beyond said elongated proximal shaft; a balloon member on said distal portion, said balloon member having a generally cylindrical distal leg and access to said inflation lumen; a guidewire lumen, said guidewire lumen being sized and shaped to slidably receive a guidewire therethrough, said guidewire lumen having a distal end portion, said balloon distal leg being secured to the distal portion at a location generally at the distal leg of the balloon member, such being a securement location; a long flexible atraumatic tip of the catheter, said atraumatic tip being at the distalmost portion of the guidewire lumen, said tip extending distally beyond said securement location, said tip having a length of at least about 3.5 mm; and said tip has a distal edge having a buffed, soft non-heat treated annular chamfer, and at least a distal portion of said tip has a flexibility which is not negatively impacted by formation of said securement location.