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Title:
SEMIPERMEABLE MEMBRANE
Document Type and Number:
WIPO Patent Application WO/2023/286729
Kind Code:
A1
Abstract:
A semipermeable membrane that comprises a polyether sulfone, a sulfonated polyarylene ether copolymer and polyvinylpyrrolidone and that has cytokine adsorption ability suitable for the use in continuous renal function replacement therapy. The sulfonated polyarylene ether copolymer contains, as copolymerization components, a repeating unit of a hydrophobic segment represented by formula (1) and a repeating unit of a hydrophilic segment represented by formula (2). In the whole semipermeable membrane, the content ratio (ratio by mass) of the polyether sulfone/the sulfonated polyarylene ether copolymer/polyvinylpyrrolidone is 75-90/7-22/3-18.

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Inventors:
KOYAMA SHINYA (JP)
FUJITA KOJI (JP)
Application Number:
PCT/JP2022/027231
Publication Date:
January 19, 2023
Filing Date:
July 11, 2022
Export Citation:
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Assignee:
TOYO BOSEKI (JP)
KANEKA CORP (JP)
International Classes:
A61K31/765; A61M1/18; A61M1/36; A61P7/08; B01D71/52; B01D71/62; B01D71/68
Domestic Patent References:
WO2013022012A12013-02-14
WO2020203927A12020-10-08
WO2017064936A12017-04-20
Foreign References:
JP2019018193A2019-02-07
JP2009125265A2009-06-11
JP2011062282A2011-03-31
JP2001070767A2001-03-21
Other References:
THE JOURNAL OF ARTIFICIAL ORGANS, vol. 43, no. 3, 2014, pages 233 - 237
J. CHROMATOGR. A, vol. 1559, 2019, pages 152 - 160
"The method of hemodialyzer performance assessment", JOURNAL OF JAPANESE SOCIETY FOR DIALYSIS THERAPY, vol. 45, no. 5, 2012, pages 435 - 445
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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