发明名称 |
HOLLOW-FIBER MEMBRANE BLOOD PURIFICATION DEVICE |
摘要 |
(Problem to be Solved);To obtain a hollow-fiber membrane blood purification device having excellent blood compatibility and antioxidative performance and highly stable antioxidative performance under severe environments.;(Solution);A hollow-fiber membrane blood purification device provided with a hollow-fiber membrane containing a polysulfone-based resin, a polyvinyl pyrrolidone, a fat-soluble vitamin and a polymer having an ester group, in which
an abundance of the fat-soluble vitamin on all surfaces of the hollow-fiber membrane is 2 mg or more and 18 mg or less based on 1 g of the hollow-fiber membrane,when the hollow-fiber membrane is extracted with ethanol, an extract is dried and subjected to measurement of an infrared absorption spectrum (IR), a ratio of absorbance (Abs(A)) of peak A in a vicinity of 1720 to 1730 cm−1 to absorbance (Abs(B)) of peak B in a vicinity of 1660 to 1670 cm−1, (Abs(A)/Abs(B)), is 0.01 or more and 0.3 or less, anda moisture content of the hollow-fiber membrane is 0 mass % or more and 600 mass % or less. |
申请公布号 |
US2014158611(A1) |
申请公布日期 |
2014.06.12 |
申请号 |
US201214233239 |
申请日期 |
2012.06.20 |
申请人 |
Satoh Junya;Sekine Kumiko |
发明人 |
Satoh Junya;Sekine Kumiko |
分类号 |
A61M1/16;B01D71/58;B01D69/08;B01D71/68 |
主分类号 |
A61M1/16 |
代理机构 |
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代理人 |
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主权项 |
1. A hollow-fiber membrane blood purification device provided with a hollow-fiber membrane comprising a polysulfone-based resin, a polyvinyl pyrrolidone, a fat-soluble vitamin and a polymer having an ester group, wherein
an abundance of the fat-soluble vitamin on all surfaces of the hollow-fiber membrane is 2 mg or more and 18 mg or less based on 1 g of the hollow-fiber membrane, when the hollow-fiber membrane is extracted with ethanol, an extract is dried and subjected to measurement of an infrared absorption spectrum (IR), a ratio of absorbance (Abs(A)) of peak A in a vicinity of 1720 to 1730 cm−1 to absorbance (Abs(B)) of peak B in a vicinity of 1660 to 1670 cm−1, (Abs(A)/Abs(B)), is 0.01 or more and 0.3 or less, and a moisture content of the hollow-fiber membrane is 0 mass % or more and 600 mass % or less.
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地址 |
Tokyo JP |