You get an eggbeater, which is everywhere, and you saw off a blade, and then you take tubing, and you stick it on that. You put the blood in, you spin it -- somebody sits there and spins it.
泡だて器がありますね どこにでもあります　そこから刃を取り去る そこでチューブを その上に接着します　血液を入れる　回転させる 座ってグルグルやるんです