PROBLEM TO BE SOLVED: To provide a dialysis member, a dialyzer, a dialysis apparatus, and a dialysis method which have high safety.SOLUTION: A dialysis member P10 comprises a plurality of tubular flow channels, the wall parts of which are integrally constructed by a cellulosic material, thereby allowing the dialysis member P10 to be demarcated into the plurality of flow channels. The flow channels include first flow channels P1 through which a first fluid flows and second flow channels P2 through which a second fluid, which is different from the first fluid, flows. The first and second fluids each flow in an opposite direction. The first and second flow channels are arranged such that each of the first flow channels is surrounded by a plurality of second flow channels.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2016,JPO&INPIT【課題】安全性の高い透析用部材、ダイアライザー、透析装置および透析方法を提供する。【解決手段】透析用部材P10は、複数の管状の流路が設けられ、これらの壁部がセルロース系材料で構成されたものであって、一体的に形成された壁部によって、複数の流路に分画されている。流路として、第1の流体が流れる第1の流路P1と、第1の流体とは異なる第2の流体が流れる第2の流路P2とを有し、第1の流体と第2の流体とが、逆方向に流れ、第1の流路および第2の流路を、それぞれ、複数有し、流路の長手方向に沿って、第1の流路を取り囲むように、複数の第2の流路が配される。【選択図】図1
