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Efficacy of Cleaning Methods for Ophthalmic Microscopic Instruments: A Comparison Study
Author(s) -
Zhou Wenzhe,
Ye Cong,
Huang Xiaoqiong,
Zhang Peihua,
Zheng Senguo,
Qin Lei,
Chen Yanyan
Publication year - 2020
Publication title -
aorn journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.222
H-Index - 43
eISSN - 1878-0369
pISSN - 0001-2092
DOI - 10.1002/aorn.13105
Subject(s) - silicone oil , human decontamination , cleaning agent , contamination , silicone , biomedical engineering , materials science , surgery , medicine , metallurgy , chemistry , composite material , ecology , organic chemistry , pathology , biology
ABSTRACT The combination of silicone oil and blood is difficult to remove from ophthalmic surgical instruments during cleaning and decontamination processes. We sought to establish the most efficient cleaning procedure for this type of contaminated instrument. We uniformly contaminated microscopic instruments made of titanium alloy and stainless steel with either blood alone or blood and silicone oil. We randomly assigned each instrument to one of four types of cleaning procedures that involved combinations of water, a multi‐enzyme detergent, or an alkaline detergent. After completing the designated cleaning procedure, a sterile processing technician used an adenosine triphosphate cleaning verification test to evaluate the cleaning efficacy. When cleaning blood‐ and silicone oil–contaminated titanium‐alloy and stainless‐steel instruments, the alkaline detergent immersion followed by a multi‐enzyme detergent ultrasonic cleaning yielded the highest cleaning effectiveness score (92.5%), which indicates this was the most effective of the four cleaning procedures that we tested.