Patent ID: 6592730
Filing Date: 2003-07-15
Classification: A61L

Abstract:
A disinfectant/sterilant system comprising:a chamber which receives an item to be disinfected or sterilized; a pump for pumping a peroxyacetic acid antimicrobial solution into the chamber; and an electrochemical analysis chamber fluidly connected to receive the peroxyacetic acid solution flowing to the chamber, the electrochemical analysis chamber including: a chamber which defines a fluid receiving reservoir; a plurality of measurement electrodes disposed in the reservoir to be in electrical contact with solutions received in the reservoir, at least one of the electrodes including a brittle carbon rod supported and sealed in a metallic sleeve comprising a stainless steel tube, a sleeve of electrically insulating material surrounding the brittle carbon rod, formed of an oxidant-resistant polymer, the insulating sleeve compressing at a force below a compression force which fractures the brittle carbon rod, the metal sleeve being compressed beyond its elastic limit around the insulating sleeve to form a compression fitting with the insulating sleeve and the brittle carbon rod; and an analysis control system connected with the electrodes for conducting electrochemical measurements which are indicative of peroxyacetic acid concentration.