Patent ID: 8591450
Filing Date: 2013-11-26
Classification: A61M

Abstract:
1. A dialysis catheter for delivering and withdrawing blood from a patient's body, the dialysis catheter comprising a dialysis catheter body defining first, second, third and fourth quadrants in a transverse cross-section at an intermediate portion and having first and second arterial lumens and a venous lumen, the venous lumen positioned in a portion of the third and fourth quadrants with a first region adjacent the intersection of the four quadrants and a second region opposite the first region, a wall thickness of the dialysis catheter at the second region of the venous lumen having a first dimension and increasing in thickness in a direction toward the third quadrant and increasing in thickness in a direction toward the fourth quadrant to form a first arch shaped wall portion, the arch shaped wall portion thereby having a thinner portion at the portion aligned with a diameter bisecting the first and fourth quadrants from the second and third quadrants and progressively thicker portions in the third and fourth quadrants, and the first arterial lumen is positioned in a portion of the second and third quadrants and the second arterial lumen is positioned in a portion of the first and fourth quadrants, a major portion of the first arterial lumen and the center of the first arterial lumen being positioned in the second quadrant and a major portion of the second arterial lumen and the center of the second arterial lumen being positioned in the first quadrant, a dialysis catheter wall portion forming a second arch shaped wall portion adjacent the first arterial lumen, the second arch shaped wall portion having a first pinnacle in the second quadrant and the first pinnacle such that the first portion extends from the second quadrant into the third quadrant and the second portion extends within the second quadrant.