Patent ID: 8500674
Filing Date: 2013-08-06
Classification: A61M,Y10T

Abstract:
1. A dialysis catheter comprising a catheter body having first portion having a first diameter, an elongated distal portion having a second diameter smaller than the first diameter, and a transition region between the first portion and distal portion, a first longitudinally extending central delivery lumen configured to deliver blood terminating in an opening in the distal portion, and at least two independent longitudinally extending withdrawal lumens positioned radially of the first lumen, the at least two withdrawal lumens configured to withdraw blood from a patient and each terminating in a longitudinally directed opening in the transition region, and a plurality of longitudinally extending reinforcing ribs extending radially from an outer surface of the catheter and axially partially along the outer surface of the distal portion of the catheter along a length of the catheter to thereby increase a cross-sectional dimension of the distal portion of the catheter distal of the longitudinally extending withdrawal lumens, and the longitudinally extending ribs terminating proximal of the opening in the central lumen.