Title:
HOLLOW FIBER MEMBRANE FOR BLOOD TREATMENT AND HOLLOW FIBER MEMBRANE-TYPE BLOOD TREATMENT APPARATUS
Document Type and Number:
WIPO Patent Application WO/2012/169529
Kind Code:
A1
Abstract:
[Problem] To obtain a hollow fiber membrane for blood treatment, which has high membrane performance, allows for a reduction in false positives for leakage, has excellent anti-oxidation performance and blood compatibility, is low-risk in terms of elution of hydrophilic polymer and hollow fiber leakage, is easy to prime, and has high transmission performance stability in a harsh environment. [Solution] A hollow fiber membrane for blood treatment, the hollow fiber membrane comprising a hydrophilic polymer, a polysulfone-based resin, and a fat-soluble vitamin, wherein: a hydrophilic polymer content (A), which is the mass ratio of the hydrophilic polymer with respect to the total mass of the hydrophilic polymer and the polysulfone-based resin in the entire hollow fiber membrane for blood treatment, is 3-10 mass%; a hydrophilic polymer prevalence (B), which is the mass ratio of the hydrophilic polymer with respect to the total mass of the hydrophilic polymer and the polysulfone-based resin in an inner surface of the hollow fiber membrane for blood treatment, is 35-50 mass%; and the fat-soluble vitamin prevalence in the entire surface of the hollow fiber membrane for blood treatment is 0.5-25 mg per 1g of the hollow fiber membrane.
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Inventors:
SATOH JUNYA (JP)
MORI KOUICHIROU (JP)
MORI KOUICHIROU (JP)
Application Number:
PCT/JP2012/064561
Publication Date:
December 13, 2012
Filing Date:
June 06, 2012
Export Citation:
Assignee:
ASAHI KASEI MEDICAL CO LTD (JP)
SATOH JUNYA (JP)
MORI KOUICHIROU (JP)
SATOH JUNYA (JP)
MORI KOUICHIROU (JP)
International Classes:
A61M1/18; B01D63/02; B01D69/08; B01D71/44; B01D71/68; D01F6/00; D01F6/76; D01F6/94
Foreign References:
| JP2010207583A | 2010-09-24 | |||
| JP2008290009A | 2008-12-04 | |||
| JPH11347117A | 1999-12-21 | |||
| JP2007215569A | 2007-08-30 | |||
| JPH07178166A | 1995-07-18 | |||
| JP2006296931A | 2006-11-02 | |||
| JP2008093228A | 2008-04-24 | |||
| JP2005238096A | 2005-09-08 | |||
| JP2003190747A | 2003-07-08 | |||
| JP2009183822A | 2009-08-20 |
Other References:
ANDRULLI S ET AL., NEPHRON CLIN PRACT., vol. 115, 2010, pages C82 - 89
PANICHI V ET AL., BLOOD PURIFICATION., vol. 32, 2011, pages 7 - 14
See also references of EP 2719408A4
PANICHI V ET AL., BLOOD PURIFICATION., vol. 32, 2011, pages 7 - 14
See also references of EP 2719408A4
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (JP)
Yoshiyuki Inaba (JP)
Yoshiyuki Inaba (JP)
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Claims: