不同干燥方法对软式内镜的干燥效果

目的 探讨不同干燥方法对软式内镜及其带有管腔附件器械的干燥效果，为临床选择更好的干燥方法提供依据。方法 选择待干燥处理的胆道镜及其带有管腔的附件器械600件，随机分为三组，每组各200件器械，A组：用无絮纤维布蘸取95%乙醇擦拭器械表面，用注射器抽吸95%乙醇灌注两端有开口的管腔器械内腔，用压力气枪吹干器械表面及内腔水分：B组：用干燥无絮纤维布逐一擦拭器械表面水分，再用压力气枪吹管腔3~5 s，放入50℃低温真空干燥柜20~25 min：C组：用压力气枪吹管腔3~5 s，置于60~65℃高温干燥柜10~12 min，再置于50℃低温真空干燥柜20~25 min。通过目测+气枪吹拭+称重判定干燥效果，通过计量干燥时间评价工作效率。结果 A、B、C三组器械干燥合格率分别为86.00%、94.00%、98.00%，合格率比较差异有统计学意义（P<0.05），B组、C组干燥效果均优于A组（P<0.0175），B、C组合格率比较，差异无统计学意义（P=0.041）。A、B、C三组达到器械表面干燥所需时间分别为15、20、12 min：对于器械管腔内干燥，两端有开口的器械A、B、C三组所需干燥时间分别为1、20、20 min，A组无法处理有盲端的器械，B、C组均需25 min。结论 对不耐高温的软式内镜及其带有管腔的附件器械采用压力气枪吹管腔3~5 s，放入60~65℃高温干燥柜12 min，再置入50℃低温真空干燥柜20~25 min的干燥方法，干燥消毒效果最佳，工作效率最高。

Effect of different drying methods on drying flexible endoscope

Objective To explore the drying effect of different drying methods on flexible endoscope and its accessories with lumen, and provide basis for clinical selection of better drying methods. Methods 600 choledochoscopes and accessories with lumen to be dried were selected and randomly divided into three groups with 200 devices in each group:group A:wipping the device surface with 95% ethanol-based lint-free fabric, using syringe to pump 95% ethanol into the lumen of device with opening at both ends, drying water on the surface and lumen of device with a pressure air gun; group B:wiping water on device surface one by one with a dry lint-free fiber, then blew the lumen with a pressure air gun for 3-5 seconds, and put it into a low-temperature vacuum drying cabinet at 50℃ for 20-25 minutes; group C:blow lumen with a pressure air gun for 3-5 seconds, put it in a high-temperature drying cabi-net at 60-65℃ for 10-12 minutes, and then put it in a low-temperature vacuum drying cabinet at 50℃ for 20-25 minutes. Determine the drying effect by visual inspection+air gun blowing+weighing, and evaluate the working efficiency by measuring the drying time. Results The qualified rates of drying device in group A, B and C were 86.00%, 94.00% and 98.00% respectively, difference was statistically significant (P<0.05), the drying effect of group B and C was better than that of group A (P<0.0175), difference between group B and C was not statistically significant (P=0.041). The drying time required for surface drying in group A, B and C were 15, 20 and 12 minutes respectively; the drying time required for lumen in group A, B and C with openings at both ends were 1, 20 and 20 minutes respectively, group A could not handle device with blind end, group B and C needed 25 minutes for blind end. Conclusion For flexible endoscope and accessories with lumen which can not endure high temperature, use pressure air gun to blow the lumen for 3-5 seconds, put into high-temperature drying cabinet at 60-65℃ for 12 minutes, then put into low-temperature vacuum drying cabinet at 50℃ for 20-25 minutes, the drying and disinfection effect is the best, and the working efficiency is the highest.