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US 2026/0034516 A1Published application
Hollow fiber membrane and plasmapheresis method
AssigneeToyobo Co., Ltd.
InventorsMizuki MINEYAMA, Miyuki YAO
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Abstract
A hollow fiber membrane comprising polyethersulfone, wherein the hollow fiber membrane has a structure that is non-uniform in a thickness direction, and a gradient index which is a ratio of an average pore size at an inner surface side in a cross section of the hollow fiber membrane to an average pore size at an outer surface side in the cross section is 2.00 or more.
Claims5
A hollow fiber membrane comprising polyethersulfone, wherein
- the hollow fiber membrane has a structure that is non-uniform in a thickness direction, and
- a gradient index which is a ratio of an average pore size at an inner surface side in a cross section of the hollow fiber membrane to an average pore size at an outer surface side in the cross section is 2.00 or more.
Dependencies are inferred from the claim text.