Influence of temperature on the effects of cleaning rigid cystoscope

Objective To discuss the influence of temperature on the effects of cleaning rigid cystoscope. Methods Totally 225 sets of rigid cystoscope which were used for cystoscopy in the Urologic Laparoscopy Center of the First Affiliated Hospital of Zhengzhou University from January 2017 to June 2017 were selected, each of them included four detection points: endoscope, scope lemma, obturator and cross-structure. They were randomly divided into three groups, each group including 75 sets of cystoscope and 300 detection points. The Twist'n Fill'TM cleaner distributor developed by 3M Company was used to control the temperature at 21-30 ℃ for Group A, 31-40 ℃ for Group B and 41-50 ℃ for Group C. The cleaning results were tested through the Clean-Trace ATP Surface Test and ATP Water Test developed by 3M Company. Results The cleaning yields of Group A, B and C were 65.67%, 75.67% and 96.00% respectively, the difference was statistically significant (χ2=86.748; P<0.05) . Conclusions Multi-enzymatic detergent shows the best effect at the temperature of 41-50 ℃, and it is advised that this temperature be used in cleaning rigid cystoscope. Key words: Temperature; Multi-enzymatic detergent; Rigid cystoscope; Cleaning