Abstract
Wet-type dialyzers are much more common in Japan than dry-type ones, partly due to the ease with which a wet-type dialyzer, due to rapid air expulsion, can be primed. The polysulfone membrane dialyzer (Fresenius, PS-F) is treated with newly developed in-line steam sterilization. Because this sterilization supplies continuous high-pressure steam to the fibers, the PS-F, though it is a dry-type dialyzer, is considered easy to prime. We examined the F7OS (Fresenius, PS-F) and the PS-1. 6UW, which is a wet-type dialyzer with a similar membrane, and compared these dialyzers clinically. We found that F70S offered superior rapid air expulsion and less polyvinylpiroridon during priming. The in-line steam sterilization technique is considered to be useful for dialyzers.
