| 摘要 |
PROBLEM TO BE SOLVED: To easily filter a total amount of blood after sampling in a simple structure, by partitioning the inside of a cylindrical vessel having a plug capable of insertion of a needle at an opening end into two cylindrical chambers with a blood filtering material. SOLUTION: In this blood filter, a rubber plug 6 is mounted to one opening end of a polystyrene-made cylindrical vessel 5 and a plate-shaped lid 7 is mounted to the other end, and the cylindrical vessel 5 is partitioned by a blood filtering material 2 into a blood chamber 8 and a filtering liquid chamber 9 whose volumes are 3 ml. The blood filtering material 2 is formed by piling six glass fiber filter sheets and piling one polysulfone film on the filtering liquid chamber 9 side, and it is supported by a polystyrene-made frame 1 melted with the inner wall of the cylindrical vessel 5. When blood is directly sampled from a blood vessel into this blood filter and then the blood filter is put down to open the rear end of a needle 10, air flows into the depressed blood chamber 8 to filter the blood. After the blood filtration, the blood filter is put down to be returned to an original position, the plate-shaped lid 7 is removed, and blood plasma obtained by the filtration is sampled to be used for analysis. Thus, a total amount of the sampled blood can be filtered.
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