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

Abstract

An object of the present invention is to reduce the cost in blood test and to simplify the operation thereof. According to the present invention, there is provided 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.

What is claimed is:  
     
         1 . A container for preserving biological sample used for preserving an unknown volume of biological sample containing elements to be quantified, which has been collected without quantifying a volume thereof, until it will be quantified, said container being filled with a specified volume of aqueous solution, and said container having a closable opening/closing means for adding said biological sample.  
     
     
         2 . A container for preparing a sample for quantification used for preparing a sample for quantification from an unknown volume of biological sample containing elements to be quantified, which has been collected without quantifying a volume thereof, said container being filled with a specified volume of aqueous solution, and said container having a closable opening/closing means for adding said biological sample.  
     
     
         3 . A container in accordance with  claim 1 , in which said specified volume of aqueous solution is a solution containing a specified amount of indicating material.  
     
     
         4 . A container in accordance with  claim 3 , in which said indicating material is a pigment or a chromogen.  
     
     
         5 . A container in accordance with  claim 4 , in which said chromogen is an oxidative coloring type chromogen.  
     
     
         6 . A container for collecting a biological sample in accordance with either of  claim 1 , in which said biological sample is either one of a whole blood, a blood plasma or a blood serum.  
     
     
         7 . A container for collecting a biological sample in accordance with either of  claim 1 , in which said elements to be quantified are elements in the blood serum.