| 摘要 |
A hemodialysis catheter 10 comprising a dual lumen tube 11 with a bullet nose 57 bolus 20 at its distal end. A venous port 89 is formed in one side of the bolus 20 adjacent the bullet nose 57 of the bolus 20. An arterial port 37 is formed in the bolus 20 circumferentially displaced 180 degrees around the catheter 10 from the venous port 89. The bolus 20 contains a venous passage 59B which transitions from a smaller diameter D-shaped cross-section to a larger diameter circular cross-section. The bullet nose 57 is thinner than the tube 11 but is inclined on an angle to the axis of the tube so that a portion of its outer periphery is substantially tangent to a hypothetical cylinder containing the trailing edge of the venous port 89. |
