Leukocyte-separating filter and leukocytes remover
AssigneeTerumo Kabushiki Kaisha
InventorsHitoshi Kuroki, Shoji Ochiai
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Abstract
A leukocyte remover includes a housing having a blood inlet, a blood outlet, and a leukocyte-separating filter disposed in the housing such that it partitions the interior of the housing into a blood inlet portion and a blood outlet portion. The leukocyte filter is composed of one or more three-dimensionally reticular, porous members with continuous open pores having a most frequent pore diameter of 1 .mu.m to 5 .mu.m and a ratio of a weight-average pore diameter to a number-average pore diameter in the range of 1.5 to 2.5.
Claims3
A leukocyte-separating filter composed of a plurality of three-dimensionally reticular, porous members with continuous open pores having a most frequent pore diameter in the range of 1 .mu.m to 5 .mu.m and a ratio of a weight-average pore diameter to a number-average pore diameter in the range of 1.5 to 2.5, one or more of said porous members located on the upstream side having a ratio of the weight-average pore diameter to the number-average pore diameter larger than that of the remaining porous members located on the downstream side.
Dependencies are inferred from the claim text.