Patent 7513886 was granted and assigned to AngioScore on April, 2009 by the United States Patent and Trademark Office.
A balloon catheter comprises a catheter body, a balloon at a distal end of the catheter body, and a guidewire tube within the balloon and separate from the catheter body. A catheter may be introduced over a guidewire by passing the guidewire through a guidewire lumen in the guidewire tube. No guidewire lumen is provided within the catheter body.