After being cleaned in a properly designed Washer Decontaminator Washer Disinfector using a combination enzyme detergent cleaning concentrate: All instruments and utensils tested were sterile at the completion of the process.

APIC: Eighteenth Annual Conference and International Meeting
Validation of the microbial safety of surgical instruments and utensils following automated cleaning by a properly designed Washer Decontaminator Washer Disinfector Thermal Disinfection. A. Drake, RN and L. Ayers, MD., The Ohio State University Hospitals,
The application of universal precautions to instruments/utensils handling became an issue in the selection of replacement decontamination equipment for Central Sterile supply at our hospital.  The new technology of an automated thermal disinfection Washer Decontaminator Washer Disinfector (TW)(CESCO TM, Mercersburg, Pa.) offered increased protection to our reprocessing staff due to decreased handling but raised concerns about the efficacy of thermal disinfection as opposed to traditional washer sterilization. Because of the limited scientific documentation of this new technology, a study was undertaken to establish the microbial safety of finished products and to identify any feature or function failure which could adversely affect outcome. Contact us for: surgical instrument cleaning detergents, washer disinfector detergents, automated washer disinfectors, surgical instrument washers, enzymatic surgical instrument detergents, enzyme surgical instrument cleaners, and countertop washer disinfectors.
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The sequential functions of the Surgical Instrument Washer Decontaminator Washer Disinfector progress from flush/rinse, sonic bath, wash, rinse, lubricant/deionized water (DI) sprays to drying at 240°  F. for 4 minutes. The Washer Decontaminator Washer Disinfector was challenged with selected instruments and utensils that are considered to be very difficult to clean.  Included were 30 each  of stainless steel non-perforating towel clips and stainless steel and glass medicine cups.  Each item was rinsed with a 10 5ml  suspension of Staphylococcus aureus, Pseudomonsaeruginosa, Enterococcus fecalis and Candida albicans in nutrient media and then dried. The instruments wee processed in the Washer Decontaminator Washer Disinfector 3 separate loads during times of high volume operation.  All products were tested for sterility.  Ten separate cultures were taken of the final rinse solution of instrument lubricant and de-ionized water prior to the drying cycle.  A separate culture was taken of the instrument lubricant fluid.  All instruments and utensils tested were sterile at the completion of the process. Our findings support the practice of validating all features of new technologies that may compromise the expected final outcome.  The Washer Decontaminator Washer Disinfector is a valid replacement for the conventional washer-sterilizer.
Ann Drake, John Temple, Product Development
Enzyme Detergent for cleaning surgical instruments after surgery
Enzyme Detergent enzyme detergent pre-soak cleaner
NOTE: The Surgical Instrument Washer Decontaminators, Washer Disinfectors, Tunnel Washers, represented were manufactured by CESCO, Mercersburg PA. Although these The Surgical Instrument Washer Washer Decontaminators, Washer Disinfectors, Tunnel Washers are not currently available, the studies demonstrate the propensity for a properly designed Washer Decontaminator Washer Disinfector to deliver optimal results. The Cleaning Concentrates used in these studies are currently available in the form of the all-in-ONE combination enzyme detergent cleaners. A critical component for optimal cleaning is using the best possible cleaning concentrate. Recent European studies have illustrated and concluded that combination enzyme detergent cleaning concentrates are more effective than conventional cleaners.