Importance

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Abstract

A multi-lumen catheter for use in the extracorporeal treatment of bodily fluids comprises a tubular catheter body having a first septum extending along its length, and having a withdrawal port and an infusion port. First and second withdrawal lumens are disposed on one side of the septum for transporting fluids withdrawn from a body vessel through the withdrawal port to an extracorporeal treatment unit, such as a dialyzer. An infusion lumen is disposed on the other side of the septum for infusion of treated fluids from the dialyzer through the infusion port into the vessel. The catheter body has a second septum extending along a length of the first septum. A proximal portion of the second septum separates the first and second withdrawal lumens, and a distal portion of the second septum extends distal to the withdrawal port. The distal portion tapers to a termination point along the length of the first septum length, for easing entry of the catheter into the vessel.

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First Claim