Patent ID: 7135150
Filing Date: 2006-11-14
Classification: G01N,Y10T

Abstract:
1. A blood testing tool comprising: an asymmetric separation porous membrane for separating blood cells from blood; and an asymmetric recovery porous membrane to be impregnated with and retain blood serum or blood plasma of the blood such that an upper surface side of the recovery porous membrane is underneath a lower surface side of the separation porous membrane, the separation porous membrane being laminated on the recovery porous membrane, wherein pores on the upper surface side of the recovery porous membrane have an avenge pore size that is in a range from 10 to 1000 μm and is larger than that of pores on the lower surface side of the separation porous membrane, and further wherein the pores on the lower surface side of the separation porous membrane have an average pore size that does not allow the blood cells to pass.