Catheter Assembly Including a Multi-Lumen Configuration

A multi-lumen configuration for a catheter tube, an outer surface of the catheter tube defining a flattened oval cross sectional shape, the multi-lumen configuration including:

• a first lumen;
• and
• a second lumen substantially identically shaped to the first lumen, the first and second lumens each defining a cross sectional shape, including:
• an arcuate portion;
• rounded first and second corners disposed at either end of the arcuate portion;
• and
• a concavity opposite the arcuate portion and interposed between the first and second corners.

A catheter assembly, comprising:

• an elongate catheter tube defining first and second lumens, wherein:
• an outer surface of the catheter tube defines a flattened oval cross-sectional shape;
• and
• the first and second lumens are separated by a septum and are substantially identically shaped, the first and second lumens each defining a cross-sectional shape including:
• a first minor arc portion adjacent the septum;
• a second major arc portion adjacent an outer wall of the catheter tube;
• and
• rounded first and second corners interposed between the minor arc portion and the major arc portion.