Rapid exchange dilation catheter for non-vascular applications

摘要

Described is a method for treating a bronchial tissue. A guide wire is inserted through a bronchial passage to a desired location relative to a target portion of tissue to be treated. A catheter is slid along the guide wire with the guide wire received in a first lumen of the catheter until the guide wire exits a proximal port of the first lumen. A stiffening member is inserted into a second lumen of the catheter. A fluid is injected through the second lumen to a distal port of the catheter, so that the fluid is supplied to the bronchial tissue.

主权项

1. A medical device, comprising:
an elongate catheter shaft having a guidewire lumen defined therein; wherein the catheter shaft has an outer surface, a proximal end, and a distal end; wherein the guidewire lumen extends from a proximal guidewire port to a distal guidewire port; wherein the distal guidewire port is disposed at the distal end of the catheter shaft; wherein the proximal guidewire port is disposed at a position distal of the proximal end of the catheter shaft; and wherein the proximal guidewire port extends radially outward from the outer surface of the catheter shaft.