Abstract
EVAL-HF dialyzers “KF 101” have been used for HAHD, but it may happen that blood coagulation makes the dialysis impossible when the blood coagulates at the blood port, or when distribution of blood into the HF bundle is not uniform. The Navier-Stokes equation of motion was used for analysis. It is preferable that the angle of elevation at the funnel shaped slope is within 10-20 degrees in order to avoid blood stagnation caused by the steep rise and the subsequent expansion. The flow quantity per single HF at the trial port is almost equalized from center to outer layer of HF bundle. With the module thus designed, blood coagulation hardly occurred in clinical trials, indicating the blood flow condition at the port to be effectively improved.
