Method of using a shielded tip catheter

A method of inserting a catheter over a catheter guide wire comprising:

• providing a catheter having:
• an elongated body having a proximal end and a distal end;
• a first lumen having:
• a sidewall extending between the proximal end and the distal end;
• a first distal opening disposed at the distal end;
• and
• a first guide wire opening disposed proximally of the distal end and co-planar with the sidewall;
• and
• a second lumen connected to the sidewall and extending between the proximal end and a second distal end, proximal of the distal end, wherein the second lumen includes:
• a second opening extending obliquely away from the sidewall distally toward the first distal opening;
• and
• a second guide wire opening disposed proximally of the second opening and in a plane generally parallel to the sidewall;
• wherein the method further comprises:
• providing a catheter guide wire having a proximal end;
• inserting the proximal end of the guide wire through the first distal opening;
• inserting the proximal end of the guide wire through the first lumen to the first guide wire opening;
• exiting the proximal end of the guide wire from the first lumen through the first guide wire opening;
• pulling the proximal end of the guide wire longitudinally along an exterior of the first lumen to the second lumen;
• pulling the proximal end of the guide wire over the second lumen to the second guide wire opening;
• inserting the proximal end of the guide wire through the second guide wire opening and into the second lumen;
• inserting the proximal end of the guide wire through the second lumen;
• and
• drawing the proximal end of the guide wire from the proximal end of the second lumen.