REENTRY CATHETHER AND METHOD THEREOF

摘要

Embodiments of the invention are directed towards a rapid exchange catheter configured for insertion into a subintimal space and crossing an occlusion in a subintimal space. The catheter includes a proximal end, a distal end, a first lumen configured to receive a first wire, the first lumen extending longitudinally through a least a lateral port of the catheter, and a second lumen having at least a portion distal of the lateral port and extending through at least the distal end of the catheter. The catheter also includes an exchange port arranged on a exterior portion of the catheter configured to the receive a second wire and second rapid exchange port in communication with the second lumen. Moreover, other embodiments of the invention are directed towards methods for using the rapid exchange catheter to cross an obstruction in a vessel, e.g., a total or partial occlusion, in a subintimal space.

主权项

1. A method for forming a pathway in an interstitial space within a blood vessel and lumen of the blood vessel, comprising the steps of:
advancing a first wire into the interstitial space; advancing a rapid exchange catheter system over the first wire into the subintimal space; advancing a second wire down a central lumen of the rapid exchange catheter system; and advancing the second wire through a lateral port of the rapid exchange catheter system into the lumen of the blood vessel.