A supply volume having a first supply side opening and a second supply side opening, a clean side, and a filtration membrane are provided, the filtration membrane isolates the supply volume and the clean side, and the filtration membrane is plasma A whole blood filtration device that has pores that retain blood cells while being permeable to serum. [Selection] Figure 1第1の供給側開口部及び第2の供給側開口部を有する供給ボリュームと、クリーンサイドと、ろ過膜と、を備え、ろ過膜は供給ボリューム及びクリーンサイドを隔離しており、ろ過膜は血漿/血清に透過性を有する一方で血液細胞を保持する細孔を有する、全血液ろ過装置。【選択図】図1