Instrument and method for blood separation, and preparing method, quantifying method and preserving container for biological sample

摘要

The present invention provides an instrument to be used for blood separation, comprising: a blood collection means (8) for containing collected blood (38); a filtration means (3) for separating blood cell (40) and blood plasma (39) in said collected blood; a blood cell collection means (5) for containing separated blood cell; a blood plasma collection means (4) for containing separated blood plasma; and a pressure applying means (6) for applying a pressure to said blood contained in said blood collection means; wherein said filtration means has a capillary (12) in communication with a blood discharging section of said blood collection means and a blood cell introducing section of said blood cell collection means, said capillary (12) having a plurality of perforations each being formed through a wall thereof; said instrument being characterized in that: said blood in said blood collection means is introduced into said capillary by a pressure applying motion caused by said pressure applying means; and the blood plasma in said blood moves through said perforation of said capillary to be separately contained in said blood plasma collection means, while the blood cell in said blood flows through said capillary to be contained in said blood cell collection container.