To provide a bundle of polysulfone-based permselective hollow fiber membrane which exhibits a high degree of safety and stability of performance and is particularly suitable for a hemocatharsis apparatus or the like.
The bundle of polysulfone-based permselective hollow fiber membrane containing polyvinylpyrrolidone satisfies the following characteristics at the same time: (1) Elution of polyvinylpyrrolidone from the bundle of hollow fiber membrane is 10 ppm or less; (2) When the bundle of the hollow fiber membrane is divided into ten in the direction of its length and tests established by the manufacturing license standard of dialysis type artificial kidney apparatus are conducted for each of the sections, the amount of elution of hydrogen peroxide in an obtained extract is 5 ppm or less for all the sections; (3) The thickness of the hollow fiber membrane is 10-60 μm and the yield elongation percentage of single yarn is 5.0% or less; and (4) The hollow fiber membrane is provided with crimps of wavelength of 10 mm or more and of amplitude of 0.2 mm or more. The hemocatharsis apparatus is filled with the above permselective hollow fiber membrane.
MABUCHI KOYO
KATO NORIAKI
KUZE KATSURO
| JP3580314A | ||||
| JP2002066274A | 2002-03-05 | |||
| JP2004305840A | 2004-11-04 | |||
| JP2003275549A | 2003-09-30 |
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