Catheter with variable dimension guide wire lumen

A catheter having a variable dimension lumen to receive varying sized guide wires, comprising:

• a large bore catheter having a distal end and a proximal end with an inner lumen extending therethrough and having an inside diameter;
• an adaptor tube having a distal end and a proximal end with an inner lumen extending therethrough, wherein the adaptor tube includes an outside diameter that provides an interference fit to the inside diameter of the inner lumen of the large bore catheter;
• wherein the adaptor tube is disposed within the inner lumen of the large bore catheter and the distal end of the adaptor tube projects out of the distal end of the large bore catheter;
• and
• an end cap having an access port and engaging the proximal end of the large bore catheter;
• and
• wherein the end cap includes a means for securing the proximal end of the adaptor tube to the proximal end of the large bore catheter tube.

A method for providing a catheter having a variable dimension lumen to receive varying sized guide wires, comprising:

• providing a large bore catheter having a distal end and a proximal end with an inner lumen extending therethrough and having an inside diameter;
• providing an adaptor tube having a distal end and a proximal end with an inner lumen extending therethrough, wherein the adaptor tube includes an outside diameter that provides an interference fit to the inside diameter of the inner lumen of the large bore catheter;
• disposing the adaptor tube within the inner lumen of the large bore catheter so that the distal end of the adaptor tube projects out of the distal end of the large bore catheter;
• providing an end cap having an access port;
• and
• securing the proximal ends of the large bore catheter and the adaptor tube to the end cap.