Stent delivery system

A push catheter for placement of a biliary stent, the push catheter comprising:

• a hub assembly;
• and
• an elongate shaft secured to and extending from the hub assembly, the elongate shaft comprising:
• a distal segment having a proximal end, a distal end and a lumen extending therethrough;
• a proximal segment having a proximal end, a distal end, a first lumen extending from the distal end to the hub assembly and a second lumen extending from the distal end to the hub assembly, wherein the distal end of the proximal segment is formed at an oblique angle defining a ramp;
• and
• a side port extending through a side wall of the proximal segment and providing access to the first lumen;
• wherein the distal segment is secured to the proximal segment such that each of the first and second lumens of the proximal segment is in association with the lumen of the distal segment.

A biliary stent delivery system comprising:

• a guide catheter including a tubular member and a pull wire;
• a stent positioned about the tubular member of the guide catheter;
• and
• a push catheter, the push catheter comprising:
• a distal segment having a proximal end, a distal end and a lumen extending therethrough;
• and
• a proximal segment extending proximally from the distal segment, the proximal segment having a proximal end, a distal end, a first lumen and a second lumen;
• wherein the pull wire is positioned within the second lumen of the proximal segment of the push catheter.

A tool for urging an elongate shaft of a catheter into a curved orientation, the tool comprising:

• a body portion;
• a securement portion, the securement portion including a first leg extending from the body portion and a second leg extending from the body portion, the second leg spaced from the first leg such that the first and second legs are configured to retain the elongate shaft therebetween;
• and
• a biasing portion, the biasing portion including a third leg extending from the body portion;
• wherein the third leg is misaligned from the first and second legs, such that placement of the elongate shaft adjacent the third leg biases the elongate shaft into a curved orientation.