In transurethral endoscopic operations we have maximal demands for the water conditions where, as in urology, for the diagnostic endoscopy one mostly uses sterile filtered but on principle hydrant water containing pyrogen. First the determinations of the order for drinking water and its possible consequences for irrigator systems are laid down. Water for injections like the irrigator water in operative endoscopy must conform to the demands in pharmacopoeia of the different countries. With the new combination of reverse osmosis system with an irrigator, hydrant water can be purified to pyrogen-free sterile water in the place of treatment.

Keywords:
Endoscopy, Pyrogen, Irrigator, Filtration, Irrigating fluid, Reverse osmosis
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© 1977 S. Karger AG, Basel
1977
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