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AssigneeAsahi Kasei Medical Co., Ltd.
InventorsTatsuya Fukuda, Yoshimasa Matsuura
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An aggregate-removing filter material efficiently removes aggregates that are contained in a blood product for transfusion and may cause transfusion reactions without clogging, and exhibits excellent quality stability, and a blood product filtration method uses a filter apparatus that includes the aggregate-removing filter material and a leukocyte-removing filter material. The aggregate-removing filter material includes short fibers having a fineness of 0.7 to 4.0 dtex and a fiber length of 1 to 80 mm, and a ground fabric that includes long fibers, a fiber axis of the long fibers being oriented in a planar direction of the ground fabric, the short fibers being entangled with the ground fabric so that the aggregate-removing filter material has a total weight per unit area of 10 to 80 g/m2, and a layer of the short fibers forming a three-dimensional structure.
An aggregate-removing filter material for removing aggregates contained in a blood product, comprising short fibers having a fineness of 0.7 to 4.0 dtex and a fiber length of 1 to 80 mm, and a ground fabric comprising long fibers, of which a fiber axis is oriented in a planar direction of the ground fabric, wherein the short fibers are entangled with the ground fabric so that the aggregate-removing filter material has a total weight per unit area of 10 to 80 g/m2, and a layer of the short fibers forms a three-dimensional structure.
A method of filtering a blood product comprising filtering a blood product using a filter apparatus that includes an aggregate-removing filter material and a leukocyte-removing filter material, wherein the aggregate-removing filter material being produced by entangling short fibers having a fineness of 0.7 to 4.0 dtex and a fiber length of 1 to 80 mm with a ground fabric comprising long fibers, of which a fiber axis is oriented in a planar direction of the ground fabric to obtain the aggregate-removing filter material having a total weight per unit area of 10 to 80 g/m2.
Use of a structure as an aggregate-removing filter material, the structure being produced by entangling short fibers having a fineness of 0.7 to 4.0 dtex and a fiber length of 1 to 80 mm with a ground fabric comprising long fibers, of which a fiber axis is oriented in a planar direction of the ground fabric, wherein the structure has a total weight per unit area of 10 to 80 g/m2, and a layer of the short fibers forms a three-dimensional structure.
Dependencies are inferred from the claim text.