Cleaning Endoscopes Disinfecting Endoscopes
Disinfecting Endoscopes
Cleaning Endoscopes
Endoscope Washer Rack
Cleaning MIS Instruments.
High-level disinfection of flexible endoscopes is recommended to prevent patient infection because endoscopes are classified as semicritical instruments by the Centers for Disease Control and Prevention. Rigid endoscopes are classified as critical instruments that require sterilization; however, if sterilization is not feasible, high-level disinfection may be acceptable.(4)
Definitions:
Sterilization - the complete elimination or destruction of all forms of microbial life.
High-level disinfection - destroys all microorganisms, with the exception of high numbers of bacterial spores.
Intermediate-level disinfection - inactivates Mycobacterium tuberculosis, vegetative bacteria, most viruses, and most fungi, but it does not necessarily kill bacterial spores.
Low-level disinfection - kills most bacteria, some viruses, and some fungi, but it cannot be relied on to kill resistant microorganisms such as tubercle bacilli or bacterial spores.
Ref: APIC guideline for selection and use of disinfectants, Rutala (1996)
"Critical objects (those that enter sterile tissues or the vascular system or through which blood flows, such as implanted medical devices) should be sterile when used."
"Semicritical items (that touch mucous membranes or nonintact skin, e.g., endoscopes, respiratory therapy equipment, and diaphragms) require high-level disinfection (i.e., elimination of all microorganisms except high numbers of bacterial spores)."
"Noncritical items (bedpans, blood pressure cuffs, and bedside tables) require only low level disinfection."
Preliminary cleaning should be started before the endoscope is detached from the light source/video processor. This will significantly reduce the overall time expended and the equipment deterioration that results from reprocessing scopes. As soon as the endoscope has been removed from the patient, begin reprocessing, observing the following steps:
- clear gross debris by sucking and enzyme detergent through the working channel
- ensure the working channel is not blocked
- irrigate the air and water channels with water checking for blockages
- expel any blood, mucus or other debris
- wipe down the insertion shaft
- check for bite marks or other surface irregularities
- detach the endoscope from the light source/video processor
- transfer the endoscope to a reprocessing room
Cleaning Endoscopes Disinfecting Endoscopes