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公开(公告)号:US20220331088A1
公开(公告)日:2022-10-20
申请号:US17640214
申请日:2020-08-20
发明人: Noriaki SHIRAHAMA
IPC分类号: A61F2/07
摘要: A membrane body for a tubular treatment device includes a tubular membrane portion (12). The membrane portion forms a multi-layer structure having a first layer (21) formed of a fiber and a second layer (22) having liquid permeability lower than that of the first layer.