Washer Disinfector times and temperatures
Washer Disinfector cleaning surgical instruments prior to sterilizing provides the Prerequisite for Sterilizing Instruments.
Countertop Surgical Instrument Washer
Countertop Surgical Instrument Washer
Washer Disinfector times and temperatures
Washer Disinfector
ergo-Logistics Surgical Instrument Washers, Surgical Instrument Cleaners, Surgical Instrument Trays, for cleaning surgical instruments.Tabletop Sterilizers Flash Sterilizer Cycle, Enzyme Detergent Surgical Instrument Cleaners
Washer Disinfector Surgical Instrument Washers, Surgical Instrument Cleaners, Surgical Instrument Trays, for cleaning surgical instruments.Tabletop Sterilizers Flash Sterilizer Cycle, Enzyme Detergent Surgical Instrument Cleaners
Washer Disinfectors can provide
the Prerequisite for Sterilizing Surgical Instruments

John Temple
John Prohonic
Product Development

Summary : Properly Designed Washer Disinfectors are designed to clean all surfaces thoroughly, thereby providing the critical prerequisite for the safe handling, disinfecting, and the sterilizing of surgical instruments.  

Critical cleaners, usually referred to as Washer Decontaminators Washer Disinfectors, perform pre-wash, ultrasonic (optional), detergent washing, purified water elevated temperature rinsing, lubrication and high temperature drying in such a manner as to provide thoroughly clean, stain free and lubricated medical devices. Surgical Instruments cannot be sterilized (be sterile) unless all exposed surfaces are properly cleaned, prior to sterilization, to remove soil (debris, bioburden) and properly rinsed to prevent staining.1,2,3  Not all Washer Decontaminators Washer Disinfectors provide adequate pre-rinsing, pre-cleaning, purified water rinsing, and thereby render higher rejection rates of processed surgical instruments. 4,5.

Proper Washer Disinfector Design Secures Performance

The proper sequence of treatment and the correct choice of time, temperature and the components used are necessary to render surgical instruments that are critically clean, safe to handle, and have the prerequisite for sterilization. 6,7,8.

Washer Decontaminators Washer Disinfectors employ a cold water pre-wash to remove gross debris.  This removes proteins and lipids, preventing them from being baked onto devices during the high temperature treatments to follow. 9, 10.  Then, the ultrasonic process creates millions of micro implosions to loosen and free debris from lock boxes, hinge pins, serrations and other difficult-to-access surface areas. 

The Washer Decontaminators Washer Disinfectors detergent wash then applies high flow low pressure water with a cleaning concentrate (at ~ 135 degrees F) in such a manner as to evenly reach all areas of the load and strip bioburden from the surgical instruments.  The elevated temperature (at ~ 194 to 209 degrees F) purified water final rinse secures the biocidal process, removes mineral deposits from prior cycles and lubricates the instruments. The high temperature (at ~ 158 to 230 degrees F) dry cycle presents heated, forced air which dries each device.  The critical cleaned medical devices are now clean, safe to handle, have the prerequisite for sterilization, and are properly prepared for further reprocessing. 

Washer Disinfector - Complete Removal of Pathogens

The Washington University School of Medicine at Washington University Medical Center examined the performance of a properly designed Washer Decontaminator Washer Disinfector (CESCO washer Decontaminator Model 520) and found that it removed all organisms from the surgical instruments tested.  11

The Washer Disinfector was tested for its ability to complete remove pathological organism from surgical instruments. 

Pure cultures of the following organisms were grown on appropriate agar plates:

1. Staphylococcus aureus;
2. Pseudomonas aerations;
3. Escherichia coli;
4. Bacillus species

Kelly clamps, tweezers and scissors wee placed on these plates of organism, taking care to ensure that all serrated edges were packed with all the organisms.  Each contaminated instrument was then dipped into the tube of Thiogycolate medium before being placed in all the washer baskets.  The instruments were then processed through the complete Washer Decontaminator Washer Disinfector cycle.  At the end of the drying cycle, the instruments were allowed to cool and then dipped into another tube of Thioglycolate medium.     

Washer Disinfector Results

All tubes of the Thioglycoate medium tested before the wash grew the appropriate organism within six to 18 ours after testing.  All tubes tested at the end of the wash showed no growth after 14 days of incubation. This Washer Decontaminator Washer Disinfector removed all organisms from the instruments. 

Washer Disinfector Efficacy of Disinfection 100%

Another evaluation of Washer Decontaminators Washer Disinfectors confirmed that the efficacy of disinfection was 100%.  In this study, L.P. Jette and N.G. Lambert used two test methods.12   One method (N) was to test the effect of heat only within the disinfection process and the other test method (G) was to test the efficacy of both heat and washing.  Each method gave reproducible results and confirmed the efficacy of the Washer Decontaminator Washer Disinfector.

Washer Disinfector Critical Cleaners Will Work for You

Washer Decontaminator Washer Disinfector Critical cleaners demonstrated the ability to completely remove pathological organisms with effective repeatability.  There operation is automatic, reliable, labor saving and easy to use.  Central Processing departments rarely find the need to manually treat devices and report an  exceptionally low rate of rejected devices. The Washer Decontaminator Washer Disinfector sequence, cold water pre-wash, ultrasonic cleaning, detergent washing action, final rinse and drying treatment of a properly designed Washer Decontaminator Washer Disinfector Critical Cleaner will provide critical cleaning, the prerequisite for safe handling, optimal disinfecting, and sterilizing of medical devices.

Washer Disinfectors can provide
The Prerequisite for Sterilizing Surgical Instruments

NOTE: The Washer Disinfectors used in this research study were manufactured by CESCO, Mercersburg PA. Although these Washer Disinfectors are not currently available. The studies demonstrate the propensity for Washer Disinfectors can deliver optimal cleaning results. The surgical instrument cleaner used in these studies are currently available in the form of the all-in-ONE combination enzymatic enzyme detergent surgical instrument cleaners. A critical component for optimal cleaning is using the best possible "surgical instrument cleaner". Recent European studies have illustrated and concluded that combination enzymatic enzyme detergent surgical instrument cleaner is more effective than conventional surgical instrument cleaners. The research was initiated to deactivate prions deactivating prions within the objective to prevent CJD (Creutzfeldt-Jakob Disease).
John Temple
John Prohonic
Product Development
Surgical Instrument Cleaners for cleaning Surgical Instruments Cleaner
Surgical Instrument Cleaners for cleaning Surgical Instruments Cleaner
Surgical Instrument Cleaners for cleaning Surgical Instruments Cleaner
Surgical Instrument Cleaners for cleaning Surgical Instruments Cleaner
Surgical Instrument Washer Disinfector Detergents
Surgical Instrument Washer Disinfector Detergents