Catheter assembly including a multi-lumen configuration
First Claim
1. A method for making an elongate catheter tube, the method comprising:
- extruding an extrusion material to define;
an outer surface having a flattened oval cross-sectional shape with opposing flat sides;
a first lumen and a second lumen separated by a septum; and
a third lumen between the first lumen and the second lumen, the third lumen configured to withstand pressures associated with power injection of a fluid therethrough.
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Abstract
A catheter assembly for use in accessing a vasculature of a patient is disclosed. In one embodiment, the catheter assembly includes a catheter body that includes a flattened oval outer surface and defines first and second lumens. The catheter body defines a distal tip region that includes a venous lateral opening that is in fluid communication with the first lumen and includes a distal-facing portion. The distal tip region further includes an arterial lateral opening that is in fluid communication with the second lumen, includes a distal-facing portion, and is substantially un-staggered with respect to the venous lateral opening. A distal end opening is in fluid communication with a power injectable third lumen. In another embodiment, the first and second lumens each generally include a reniform cross-sectional shape. In yet another embodiment, a dual-lumen catheter includes first and second lumens that each define a modified ellipse cross-sectional shape.
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Citations
13 Claims
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1. A method for making an elongate catheter tube, the method comprising:
extruding an extrusion material to define; an outer surface having a flattened oval cross-sectional shape with opposing flat sides; a first lumen and a second lumen separated by a septum; and a third lumen between the first lumen and the second lumen, the third lumen configured to withstand pressures associated with power injection of a fluid therethrough. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
Specification