医療用具の放射線滅菌線量の検討 : 乾燥タイプの中空糸型および積層型人工腎臓透析器に負荷した指標菌のD値の算出

概要

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Loaded with B. pumilus ATCC 27142 spores, a hollow fiber dialyser and a parallel plate dialyser, both of "dry type", were irradiated by γ-ray to determine the D values of the spores, which led to the following results.1. The D value of the B. pumilus spores attached to the cellulose diacetate hollow fibers was found to be 0.17 Mrad, while that of the same spores attached to the Cuprophan membranes was 0.22 Mrad at the miximum.2. When attached to the polycarbonate or the ABS housings, or the polyethylene spacers, the spores showed a D value of 0.16 Mrad in all cases.3. The D value of the spores attached to a glass fiver filter, as a control, proved to be 0.15 Mrad.From these results, it may be said that the "dry type" dialysers employing cellulose diacetate hollow fivers or Cuprophan membranes can safely be sterilized by a dose of 2.0 Mrad, with a sterility assurance level being <10^<-6>.
日本医療機器学会の論文
1984-09-01