To reduce time necessary for removal of residual HCHO or E. O. from the conventional artificial kidney (AK) s before their use, a novel HF type AK, TF-15, sterilized by steam autoclaving and containing distilled water, was developed. This AK has been found to demonstrate satisfactory performance and biological safety in vitro as well as in clinical trials comparable to the conventional AK's. It is also confirmed that the novel AK requires less time for its preparation, can be used without any side effect s due to sterilizing agents and is useful for E. O. or HCHO sensitive patients.
