mechanical washer-disinfector
Automated equipment that cleans and thermally disinfects medical devices through programmed cycles.
Full Definition
A mechanical washer-disinfector is an automated cleaning and thermal disinfection system designed for medical device reprocessing. These machines combine mechanical action, detergent chemistry, thermal energy, and time to achieve predictable cleaning and disinfection outcomes. Modern units feature programmable cycles, automated detergent dispensing, and data logging capabilities. They provide more consistent and reproducible results than manual cleaning while reducing staff exposure to contamination and chemicals. Thermal disinfection typically occurs at 90°C for 1 minute or equivalent validated time-temperature combinations.
Usage
Usage note: Hyphenate 'washer-disinfector.' Distinguish from washer-sterilizers which achieve sterility.
In Context
- "The mechanical washer-disinfector completed a full cycle with validated time and temperature parameters." — Equipment log sheet
- "Installation of mechanical washer-disinfectors significantly improved cleaning consistency and staff safety." — Process improvement report