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9. Cleaning and sterilization
Device
All reusable Cryo Probes supplied by Keeler Ltd. As part of the Keeler Cryomatic MKII ophthalmic cryosurgery system.
Warnings and Precautions
General
Cryo Probes are precision instruments and should be handled with care at all times. It is import that the flexible hose
does not become kinked during normal use, storage, transportation or reprocessing. If this does occur the probe
must be returned to the manufacturer for repair.
Ensure the sterilisation cap is fitted prior to sterilisation to avoid the ingress of moisture and contaminants which
could result in a blocked probe.
Limitations On Reprocessing Repeated processing has minimal effect on these instruments. End of life is normally determined by wear and
damage due to use rather than processing.
Cryo Probes are tolerant of alkaline cleaning agents when followed by acidic neutralisation and / or thorough rinsing.
Gama irradiation or dry air sterilisation methods involving temperatures in excess of 139°C should not be used since
they may damage the Cryo Probe.
Instructions
Before use, the complete Cryo Probe must be sterilized. Sterilization by steam autoclave has been validated.
Point Of Use
No particular requirements although excess soiling can be removed with disposable cloth / paper wipe.
Containment and
Transportation
Care should be taken to ensure that the flexible hose of the Cryo-Tip probe is not coiled too tightly or kinked during
reprocessing.
Used instruments must be transported to the central supply in closed or covered containers to prevent unnecessary
contamination risk. it is recommended that instruments are processed as soon as is reasonably practical following use.
Preparation For Cleaning
Ensure sterilisation cap is fitted. Disassembly not required.
Cleaning and Disinfection:
Automated
Use equipment meeting relevant standards
1
and which uses an automated sequence equating to the following
process as validated by the manufacturer as providing an acceptable level of cleanliness prior to steam sterilization:
• Pre-Rinse/Wash: water for 4 minutes at 40°C
• Detergent Wash: hot water using (detergent specified by the washer/disinfector manufacturer) for 4 minutes at
85°C (185°F)
• Thermal Rinse: hot purified water 80-85°C (176-185°F) for 10 minutes OR 90-93°C (194-199°F) for 1 minute
• Hot Air Dry
1 HTM2030 and BS EN ISO 15883, ANSI/AAMI ST79, or equivalent
Cleaning: Manual
Not recommended – do not carry out manual cleaning.
