Delivery systems and methods

A catheter assembly, comprising:

• an outer sheath having an outer sheath lumen extending therethrough;
• an inner body having a proximal end, a distal end, and an inner sheath lumen extending therethrough, a portion of the inner body receivable within the outer sheath lumen of the outer sheath;
• a distal tip positioned proximate to the distal end of the inner body, the distal tip comprising:
• a tapered tip having a proximal end having a first diameter, a distal end having a second diameter, and a guidewire lumen extending therethrough, wherein the first diameter is greater than the second diameter;
• a distal tip base disposed on the proximal end of the tapered tip, the guidewire lumen extending through the distal tip base;
• and
• a conductive cutting member coupled with the tapered tip;
• and
• a stent constrained on the inner body with a distal end of the stent spaced from a proximal end of the distal tip base.

A method of using a catheter assembly, the method comprising:

• engaging a distal end of an endoscope having endoscopic ultrasound (EUS) visualization with a surface of or in contact body tissue defining a first body lumen;
• advancing the catheter assembly through the endoscope, while a stent is constrained between an inner body and an outer sheath of the catheter assembly;
• inserting a guidewire through the endoscope and into a second body lumen;
• advancing an inner body and a distal tip of the catheter assembly into the second body lumen over the guidewire;
• advancing the inner body over the guidewire and relative to the outer sheath in a first direction to deploy a distal end of the stent within the second body lumen;
• and
• advancing the outer sheath relative to the inner body in a second direction to deploy a proximal end of the stent within the first body lumen.