Methods and Devices for Conduit Occlusion

A delivery system for occluding, treating or visualizing one or two fallopian tubes in a mammal, comprising:

• a delivery device comprising a handle;
• an introducer shaft having a proximal end operatively connected to the handle and an opposed tip, the introducer shaft defining one or two catheter channels along the interior length of the introducer shaft and defining one or two catheter channel openings proximate the tip of the introducer shaft, wherein the one or two catheter channels is configured for providing a catheter;
• one or two catheters having a proximal end and an opposed delivery end comprising an end structure that maintains the delivery end in the uterine cornua and aids in localized delivery of a composition, wherein the one or two catheters is configured to be received therein the one or two catheter channels of the introducer shaft;
• and means for providing a composition into and through the one or two catheters.