To provide a dry and polysulfone-based hollow fiber membrane type blood purification device having superior antioxidant performance and hemocompability, facilitating priming, and having high stability in antioxidation under a severe environment.
This hollow fiber membrane type blood purification device includes hollow fiber membranes containing a polysulfone resin 1, a hydrophilic polymer 2, and a fat-soluble vitamin 5. The abundance of the fat-soluble vitamin 5 in the hollow fiber membrane surface is not less than 0.5 mg and not more than 25 mg per gram of the hollow fiber membrane. A hydrophilic compound 3, including a water content, of not less than 5 mass% and not more than 50 mass% with respect to the dry-type weight of the hollow fiber membrane is attached to the hollow fiber membrane. The dry, hollow fiber membrane type blood purification device has been sterilized with radiation.
MORI KOICHIRO
Toshifumi Onuki
Akihiko Eguchi
Kazuhiko Naito