公开(公告)号：US20210039103A1

公开(公告)日：2021-02-11

申请号：US16978161

申请日：2019-03-08

申请人： TOYAMA PREFECTURE ,  ZEON CORPORATION

发明人： Kouji TAKATA ,  Shingi HASHIOKA

IPC分类号： B01L3/00 ,  C12M1/00

摘要： A particle separation device include a syringe, a barrel into which a sample liquid S containing target particles is injected and a barrel into which a buffer liquid B is injected. The device also includes a branching tube including a first conduit connected to a discharge port of the syringe, a second conduit corresponding to one of two branching from the first conduit and connected to an injection port of the barrel, and a third conduit corresponding to the other of two branching from the first conduit and connected to an injection port of the barrel. The device further includes a first unidirectional valve provided in the middle of the first conduit so as to prevent a backflow and operated to be opened in a positive pressure state on the side of the syringe and to be closed in a negative pressure state on the side of the syringe.