Patent ID: 7556612

Claim:
A multi-lumen catheter assembly comprising: a catheter body having first and second lumens extending from respective distal openings at a distal catheter end to respective proximal openings at a proximal catheter end, the first lumen having a generally arcuate cross-section with a first generally rounded cross-section end and a second generally rounded cross-section end, the generally arcuate cross-section being defined between two opposing substantially parallel, arcuate and elongate sides extending between the first and second cross-section ends, and the second lumen having a generally oblong cross-section having a first generally rounded end and a second generally rounded end and first and second elongated opposing substantially straight sides and has a major axis parallel to the elongated opposing sides and extending between the first and second ends that is oriented radially with respect to the catheter and wherein at least a portion of the first end of the generally oblong cross-section of the second lumen is interposed directly between the first cross-section end and the second cross-section end of the first lumen.