Method for preparing leucocyte-free blood preparation and blood administration set

摘要

A method for preparing a leucocyte-free blood preparation comprises the steps of: introducing a leucocyte containing liquid into a leucocyte removal filter; removing a first fraction from an effluent that is discharged from the leucocyte removal filter; obtaining an effluent portion that is discharged after the first fraction as a leucocyte-free blood preparation. A blood administration set comprising: a leucocyte removal filter having an inlet port for introducing a leucocyte containing liquid, for separating leucocytes from the leucocyte containing liquid; and a passage for discharging a leucocyte-free blood preparation from the leucocyte removal filter; wherein the passage comprises a device for removing a first fraction from an effluent discharged from the leucocyte removal filter. The method and blood administration set can avoid side effects that would otherwise occur when transfusion is performed using a leucocyte removal filter so that it is highly safe and that is simple and easy.