Cleaning Surgical Instrument Process
Washer Disinfectors
Washer Disinfectors  can provide a process that is the proper sequence of treatments.
Washer Disinfectors can deliver an effective surgical instrument cleaning process.
Studies demonstrate that Washer Disinfectors using an enzyme detergent lubricating Ultrasonic surgical instrument Cleaner Solution delivered optimal cleaning using a combination' mechanical and chemical proper sequence of surgical instrument washer treatments. After surgical instruments were cleaned in surgical instrument washer disinfectors using an enzyme detergent lubricant cleaner the efficacy of disinfection was 100%. The washers removed all pathogens, and all instruments and utensils tested were sterile at the completion of the process. Click here to go to studies. The proper sequence of surgical instrument washer treatments includes a series of mechanical treatments and the combination of four enzyme cleaners, detergents, surface conditioners, and surgical instrument lubricant cleaners.
Cleaning Surgical Instrument Process
Washer Disinfectors
Study: Cleaning Surgical Instrument Process for Surgical Instrument Washer Disinfectors, demonstarated that all instruments and utensils tested were sterile at the completion of the process.
Paper accepted for presentation at APIC
Eighteenth Annual International Meeting
Validation of the microbial safety of surgical instruments following automated thermal disinfection cleaning by a surgical instrument washer disinfector, and validating the effective surgical instrument surgical instrument washer disinfector cleaning process.
A. Drake, RN and L. Ayers, MD
The Ohio State University Hospitals, Columbus, Ohio

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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 Tunnel Washer with Ultrasonic Cleaner Treatment (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. The Proper Sequence of Washer Treatments of the thermal disinfection Tunnel Washer with Ultrasonic Cleaner Treatment 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.
Validation of the microbial safety of surgical instruments following automated thermal disinfection cleaning by a surgical instrument washer disinfector, and validating the effective surgical instrument surgical instrument washer disinfector cleaning process.
Ann Drake
John Temple, Product Development