Filter container for separating cells and filter device for separating cells

A filter container for separating cells, comprising:

• a liquid inlet port;
• a liquid outlet port;
• a filter member-housing part;
• a first filter-pressing part;
• and
• a second filter-pressing part,
• wherein the filter member-housing part is a tubular member having an opening at each longitudinal end,
• wherein the liquid inlet port is provided on a first opening end side of the filter member-housing part, and the liquid outlet port is provided on a second opening end side of the filter member-housing part,
• wherein the first filter-pressing part is located on the first opening end side and comprises three or more first protrusions protruding from an inner wall face of the filter member-housing part, or protruding from the vicinity of the inner wall face, toward a center or approximate center of a cross-section of an inner space of the filter member-housing part,
• wherein the first filter-pressing part is disposed such that, when a filter member is housed in the filter member-housing part, the first filter-pressing part is in contact with the filter member while deforming the filter member,
• wherein the second filter-pressing part is located on the second opening end side such that the filter member is interposed between the first filter-pressing part and the second filter-pressing part, and
• wherein an area ratio R1 that is calculated by the following equation is 6 to 50%:
• Area ratio R1(%)=A1/A2×100%,
• where A1 is an area of a polygon formed by connecting each tip of the three or more first protrusions, and A2 is a cross-sectional area of the inner space of the filter member-housing part where the three or more first protrusions are located.