Patent ID: 11918758
Assignee: C. R. BARD, INC.
Field: Medical technology (Instruments)
Classification: CPC A  B | IPC A  B

Claim 0:
1. A catheter assembly, comprising:
an elongate catheter tube, comprising:
an outer surface with opposing flat sides;
a first lumen with a first cross-sectional shape and first cross-sectional area;
a second lumen with a second cross-sectional shape and second cross-sectional area substantially equivalent to the first cross-sectional shape and the first cross-sectional area;
a third lumen with a third cross-sectional shape and a third cross-sectional area, wherein the third cross-sectional area is smaller than the first cross-sectional area and the second cross-sectional area, the third lumen axially offset from a central axis of the elongate catheter tube and adjacent to a first side of the opposing flat sides, the third lumen configured to withstand pressures associated with power injection of a fluid therethrough,
wherein the first cross-sectional shape, the second cross-sectional shape, and the third cross-sectional shape are substantially circular;

a nose portion joined to a distal end of the elongate catheter tube, the nose portion comprising:
a venous lateral opening in fluid communication with the first lumen;
an arterial lateral opening in fluid communication with the second lumen; and
a distal end opening in fluid communication with the third lumen, wherein the distal end opening is distal of the venous lateral opening and the arterial lateral opening; and

a trifurcating hub coupled to a proximal end of the elongate catheter tube, the trifurcating hub providing fluid communication between:
a venous extension leg and the first lumen,
an arterial extension leg and the second lumen, and
a power extension leg and the third lumen.