Chemical apparatus and process disinfecting – deodorizing – preser – Process disinfecting – preserving – deodorizing – or sterilizing – Using disinfecting or sterilizing substance
Patent
1994-08-03
1995-07-11
Warden, Robert J.
Chemical apparatus and process disinfecting, deodorizing, preser
Process disinfecting, preserving, deodorizing, or sterilizing
Using disinfecting or sterilizing substance
422 28, 422312, 422300, 134901, 206 51, 514840, A61L 216
Patent
active
054318793
ABSTRACT:
A method is provided for the sterilization or disinfection of an object in need of such treatment. The object is immersed in a sterilizing or disinfecting solution containing an antimicrobial effective amount of at least one cationic or at least one anionic antimicrobial agent in the presence of a scavenger element containing a scavenger material which is a cationic exchange resin or an anionic exchange resin. Over a period of time, the scavenger element removes from the solution the cationic or anionic antimicrobial agent at a rate which permits sterilization or disinfection of the object and which prevents undesirable build-up of the antimicrobial agent in or on the object. The object is allowed to remain in the solution for a time sufficient for the scavenger element to remove a sufficient amount of the antimicrobial agent to render the object safe for use for its intended purpose and the object is then removed from the solution. The method is particularly useful in the sterilization or disinfection of contact lenses. An apparatus for sterilizing or disinfecting objects in need of such treatment is also disclosed.
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Heyl Barbara L.
Hung William M.
Su Kai C.
White Jack C.
Winterton Lynn C.
Ciba-Geigy Corporation
Snider Theresa T.
Warden Robert J.
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