they must be thoroughly dry. If a set of instruments is wet when wrapped for
sterilization it is likely to come out of the sterilizer wet. "Wet Packs" are not
suitable for use after sterilization because they may be easily contaminated
when handled. In addition, remaining moisture, particularly in box locks and
hinges may result in corrosion that will weaken the instrument and lead to
breakage during use. Prepare instrument sets for sterilization using a wrapper,
pouch or rigid sterilization container that is appropriate for the method of
sterilization to be used. The Association for the Advancement of Medical
Instrumentation (AAMI) and individual sterilizer manufacturers provide guidance
for the proper preparation of surgical instrument trays for sterilization. Some
sterilizer manufacturers can also provide information regarding wet pack
problem solving. See also, Sterilization for the Healthcare Facility, 2nd Edition,
Reichert, M.; Young, J., "Wet Pack Problem Solving", Lee, S. (Frederick, MD:
Aspen, 1997).
B. MECHANICAL DECONTAMINATION
General surgical instrumentation may be processed in a washer sterilizer or
washer decontaminator/disinfector. Some of these processes include an enzyme
application phase and a lubrication phase that is designed into the cycle.
Follow the manufacturer's specifications when using automatic washer
sterilizers or washer decontaminators/disinfectors. They usually require the use
of a low foaming, free rinsing detergent with a neutral pH (7.0). A high-foaming
detergent may clean effectively but will often leave residual deposits on the
instruments and do harm to mechanical washers. Automated washer sterilizers
and washer decontaminator/disinfectors usually have adjustable wash and rinse
times. Some washers enable the user to customize extra cycles to process
heavily soiled surgical instruments more effectively. Check with a Technical
Service representative at 1-800-431-1123 for questions regarding processing
delicate, complex and/or multipart instruments by this method.
C. TERMINAL STERILIZATION
After following the decontamination recommendations, reusable instruments
are ready for sterilization. Independent laboratory testing, conducted according
to the F.D.A. (21 CFR PART 58) and Good Laboratory Practice Regulations
(G.L.P.), has validated steam sterilization as an effective process for reusable
instruments. See also, AAMI Standards and Recommended Practices, "Steam
Sterilization and Sterility Assurance in Health Care Facilities", ANSI/AAMI
ST46:2002; "Flash Sterilization Steam Sterilization of Patient Care Items for
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