Modular catheter system

A method of implementing a catheter comprising:

• providing a first housing;
• providing at least one first lumen tubing, the at least one first lumen tubing being disposed within an interior portion of the first outer housing, the at least one first lumen tubing having an attachment interface;
• sealing the at least one first lumen tubing with a first seal;
• sealing the at least one first lumen tubing with a second seal;
• providing a second housing;
• and
• providing at least one second lumen tubing;
• wherein the first seal and the second seal are concentric;
• wherein the first seal and the second seal encircle the at least one first lumen tubing;
• wherein the second housing is removably attachable to the first housing at the attachment interface;
• and
• wherein a fluid flow path if formed through the at least one second lumen tubing and the at least one first lumen tubing when the second housing is removably attached to the attachment interface of the first housing.