Winged catheter assembly
First Claim
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1. A catheter assembly, comprising:
- a catheter body having a plurality of lumens extending therein, said catheter body having an aspiration port in communication with a first lumen for transporting fluid withdrawn from a body vessel, said first lumen having a closed distal end, and an infusion port in communication with a second lumen for return of fluid to said vessel, said infusion port positioned distal of the aspiration port along a length of the catheter body;
said catheter body comprising a flap portion extending radially from said catheter body and defining said aspiration port, said flap portion configured and arranged to space said aspiration port from a wall of said body vessel.
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Abstract
A catheter assembly for use in extracorporeal treatment of a body fluid comprises a catheter body having a plurality of lumens extending therein. The catheter body has an aspiration port in communication with a first lumen for transporting fluid withdrawn from a body vessel to a treatment instrument, such as a dialyzer, and an infusion port in communication with a second lumen for return of treated fluid to the vessel. The catheter body includes a wing-like flap portion extending radially from the catheter body and defining the aspiration port. The flap portion is configured and arranged to space the aspiration port from a wall of the body vessel.
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Citations
15 Claims
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1. A catheter assembly, comprising:
a catheter body having a plurality of lumens extending therein, said catheter body having an aspiration port in communication with a first lumen for transporting fluid withdrawn from a body vessel, said first lumen having a closed distal end, and an infusion port in communication with a second lumen for return of fluid to said vessel, said infusion port positioned distal of the aspiration port along a length of the catheter body;
said catheter body comprising a flap portion extending radially from said catheter body and defining said aspiration port, said flap portion configured and arranged to space said aspiration port from a wall of said body vessel.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A catheter assembly for use in the extracorporeal treatment of a body fluid of a patient, comprising:
an elongated catheter body having a proximal end, a distal end, a pair of lumens extending at least substantially therethrough, and a septum separating said lumens, one of said lumens comprising an aspiration lumen, and the other of said lumens comprising an infusion lumen, said aspiration lumen extending to a closed distal end along a length of said catheter body, an aspiration port disposed along a side of said catheter body proximal of said closed distal end, said aspiration port in communication with said aspiration lumen for receiving body fluid from a body vessel of said patient for transport to a treatment unit, and an infusion port in communication with said infusion lumen for returning treated body fluid to said vessel, said catheter body comprising a flap portion extending transversely therefrom at said aspiration port, said flap portion being formed from said catheter body, and structured to substantially maintain said transverse extension from said catheter body when inserted into said body vessel and engaging a wall of said vessel, said aspiration port disposed proximal to said infusion port along said catheter body length, said septum extending at least substantially to said infusion port along said catheter body length. - View Dependent Claims (14, 15)
Specification