Blood purification device and method for producing same

A blood purification device comprising a porous molded body that includes an inorganic ion adsorbent, wherein the concentrations of Mg, Al, Ti, V, Cr, Mn, Fe, Ni, Cu, Zn, Ga, Rb, Sr, Y, Zr, Mo, Ru, Ag, Cd, Sn, Cs, La, Pr, Sm, Gd, Tb, Ta, Au, Tl, Co, In and Bi are all 0.1 ppb or lower and the concentrations of Ba, Nd, Pb and Ce are all 1 ppb or lower, in physiological saline for injection in the blood purification device at 3 months and 6 months after opening the physiological saline for injection, while the number of microparticles with sizes of 10 μm or greater is no more than 25 and the number of microparticles with sizes of 25 μm or greater is no more than 3, in 1 mL of the physiological saline for injection at 3 months and 6 months after the same physiological saline for injection has been encapsulated in the blood purification device,

• wherein the porous molded body is coated with a first biocompatible polymer of polymethoxyethyl acrylate (PMEA), and
• wherein the blood purification device is prepared by washing the porous molded body with a supercritical fluid or subcritical fluid to remove microparticles and trace metals.