Patent ID: 11957819
Assignee: nan
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 4:
5. The artificial kidney and its supportive device of claim 4, further comprising a coaxial needle assembly comprising:
a first needle that has a smaller diameter and is positioned inside a second needle;
a second needle has a larger diameter with respect to the first needle;
a needle hub with a needle wing which acts as a needle stop after it has been inserted inside said port assembly;
a dialysate passageway located within said needle hub to be in a fluid communication with said dialysis lumen of said catheter; and
an infusate passageway which located within said needle hub to be in a fluid communication with said blood/infusate lumen of said catheter and is separated from said dialysate passageway within said needle hub; and
two extension tubes, one for blood/infusate and one for dialysate with male connectors and clamps.