Long-cherished desire, the separation of cell fraction for remedy from biological sample such as separation and especially marrow sample of solid fraction from the fluid sample due to the porous filter (2) shows. The porous filter (2) the filtration equipment for clarifying (1) the fluid sample whose cell separation is necessary the upper prefix filtration room which (4) is introduced divides with into (3) and the fluid whose propagation of the acoustic standing wave is possible the lower position postposition filtration room which (6) is introduced (5). The acoustic element (8), the backing material (7) with it connects, the backing material (7), the lower position room (5) is arranged in basis inside, it resonates the sonic formation element (8) according to, in order to agitate the sample (4), it generates the standing wave via the fluid aspect and the filter of two. The sample (4) is made to move to the lower part via the filter (2) simultaneously, due to the periodic process of the vacuum pulling. True air pressure, fluid speed, and oscillation frequency are controlled by the remote device which accommodates the appropriate pump and the valve.本願は、多孔質フィルタ(2)による流体サンプルからの固体画分の分離、特に骨髄サンプルなどの生物学的サンプルから治療用細胞画分の分離を示す。多孔質フィルタ(2)は、ろ過装置(1)を細胞分離が必要な流体サンプル(4)を導入する上段前置ろ過室(3)と音響定在波の伝播が可能な流体(6)を導入する下段後置ろ過室(5)とに分割する。音響素子(8)は、基材(7)と連結し、基材(7)は、下段室(5)内の基底に配置され、音波生成素子(8)に応じて共振し、サンプル(4)を撹拌するため二つの流体面およびフィルタを通じて定在波を発生する。同時に、真空引きの周期的なプロセスにより、サンプル(4)をフィルタ(2)を通じ下方へ移動させる。真空圧、流体速度、および振動周波数は、適切なポンプとバルブを収容した遠隔装置により制御される。
