Patent ID: 7300415
Filing Date: 2007-11-27
Classification: A61M

Abstract:
1. A balloon catheter, comprising: a) an elongated tubular shaft having a proximal end, a distal end, an inflation lumen, a guidewire lumen, a guidewire proximal port, and a guidewire distal port at the distal end of the shaft; b) a balloon on a distal shaft section, having a proximal end, a distal end, and an inflatable section having a proximal end, a distal end, and an interior in fluid communication with the inflation lumen, with a portion of the tubular shaft extended through the balloon interior and bonded to a distal skirt of the balloon; and c) a proximal intermediate port in communication with the guidewire lumen and located proximal to the inflatable section of the balloon and distal to the guidewire proximal port, and a distal intermediate port in communication with the guidewire lumen and located distal to the distal end of the inflatable section of the balloon and proximal to the guidewire distal port, the intermediate ports being configured to slidably receive a guidewire therethrough so that the guidewire extends into or out of a proximal section of the guidewire lumen through the proximal intermediate port and extends into or out of a distal section of the guidewire lumen through the distal intermediate port, and the proximal section of the guidewire lumen located proximal to the proximal intermediate port is not in communication with the portion of the tubular shaft extending through the interior of the balloon.