Abstract
The optimum shape of hollow fiber dialyzer was investigated by a model for the solute transfer through dialysis membrane. It was found that the inner diameter of the hollow fiber was about 200μ, and also its effective length was about 160mm. These values were assessed from the limitation of ΔPB and VB values, and varied with hematocrit and flow rate of both blood and dialysate. The dialyzer with hollow fibers of small number and large effective length is efficient enough to remove solutes in blood. The middle molecule removal, ΔPB and VB is largely influenced by ID error from the designed value and ratio of hollow fiber blockage.
