Effect Evaluation Of Cleaning Means Of Rigid Endoscopic Equipment

ObjectiveThrough the clean effect of two different cleaning means of rigid endoscopicequipment which is widely used in clinical, to explore the effective cleaning methods.In order to improve the quantity of cleaning, prove safe and high quantity of sterilesurgical instruments, insure the safe of medical and reduce the infections in hospital.Methods200endoscopic equipment in line with “the standard” were selected randomlyfrom the gynecological surgery in China-Japan Union Hospital, Jilin University.Equipment was divided into two groups, the manual cleaning and the manualcleaning plus the ultrasonic cleaning. After cleaning each equipment was detected byfive methods to evaluate the cleaning effect: naked eye visual method,5xmagnifying visual method, special swab method, bacteriological detection methodand ATP bioluminescence method. All the data were analyzed by SPSS13.0statisticpackage. The statistical method was χ2test.ResultsEndoscopic equipments first initial washing in the operation room, thenrecovery block. The environment of different work areas are in line with the newdisinfection technical specifications.1. There are four parts we can see with the naked eye method, and theexamination rate ofmanual cleaning group is lower than t.Besides, the passingrate of manual cleaning group in thefour parts is the highest which isno statistical significance difference between the two groups (P>0.05).The differentpassing rates of the two groups, which is manual cleaning with ultrasonic cleaninggroup were higher than manual cleaning qualified group (P <0.05), in axis joint,occlusal tooth and bump slot parts are statistically significant. The differentepassing rate of the four parts of mannual cleaning group was significant.By pairwisecomparison, the handle(把手) pass rate is higher than the shaft joints and occlusaltooth (P <0.05).?2. By using the five times the magnifying glass to detect the various four parts,the passing rate ofthe four parts of manual cleaning group lower than the manualcleaning with ultrasonic cleaning group. The difference passing rates in axle joints,occlusal tooth and bump slot are statistically significant between the two groups (P<0.05). Among them, the handle（把手） passing rate is the highest among the fourparts, which is no statistically significant between the two groups (P>0.05).Throughthe manual cleaning with ultrasonic cleaning,the different passing rates of all partsof the instrument are no statistically significant (P>0.05).3. We use special swab device to detect the lumen, bump and occlusal toothgroove of the instrument.The passing rate of the two groups are very low. Thedifference is statistically significant (P <0.05).It is statistically significant that thepassing rate of manual cleaning group of four parts is different by pairwisecomparison, the passing rate of the occlusal tooth is lower than lumen parts andbump slot positions (P <0.05). The different passing rate of the manualcleaningwith ultrasonic cleaning is statistically significant after comparison.Thelumen passing rate is lower than the occlusal tooth part and bump slots sites part (P<0.05).4. By using bacteriological tests to detect the colony of the lumen for rigidendoscopy, bump and occlusal tooth groove. The result shows the passing rate ofthe manual cleaning with ultrasonic equipment is higher than manual cleaning group,and the difference was statistically significant (P <0.05)..It is statisticallysignificant that the passing rate of manual cleaning group of four parts isdifferent bypairwise comparison, the passing rate of bump slot positions parts is higherthan theocclusal tooth parts and the lumen (P <0.05). Thedifferent passing rate of the manual cleaningwith ultrasonic cleaning is statistically significant after comparison.The bump slots sites partpassing rate is higher than theocclusal tooth part and lumen (P <0.05).5. By using the ATP bioassay to detdct the lumen, bump slot and occlusal toothparts. The passing rate of the manual cleaning is lower than the manualcleaning with ultrasonic cleaning group, andeach part of the test results werestatistically different (P <0.05). Hand wash group of four parts pass rate differencewas significant by pairwise comparison, bump slot parts pass rate in the lumen andocclusal tooth sites (P <0.05). The different passing rate of the manualcleaning withultrasonic cleaning is statistically significant after comparison.Thebump slots sites part passing rate is higher than the occlusal tooth part and lumen (P<0.05).Conclusion:In order to clean the hard endoscopic surgical instruments, the resultsays manual cleaning withultrasonic cleaning is better than traditional hand washing.Through different cleaning methods and detection methods,the result shows itis difficult to clean up the lumen, shaft section, occlusal tooth parts ofthe endoscopic, especially the lumen area, which is the focus of the cleaning workinthe future. By using the the scientific, standardized and standard cleaning methodsto improve the quality of cleaning,we can effectively control the hospital infections.