目的 通过实验比较热风干燥柜和低温负压干燥柜对达芬奇机器人机械臂的干燥效果。方法 随机取使用次数＞10次的机械臂12支，按拿取顺序奇偶数分为A组和B组，进行重复实验。实验流程为：机械臂称重后清洗，A组采用90℃热风干燥柜，B组采用低温负压干燥柜，每8 min取出称重，直至干燥64 min；比较两组机械臂的重量变化及水分去除率，以判断不同干燥设备对机械臂的干燥效果。结果 干燥时长＜24 min，A组的重量下降幅度及水分去除率均明显大于B组；干燥时长为24~40 min时，B组的重量下降幅度及水分去除率均明显大于A组（均P＜0.05）；干燥64 min时，两组机械臂重量差异无统计学意义（P＞0.05）；结论 热风干燥柜对器械表面水分干燥效果好，低温负压干燥柜可持续对器械表面尤其管腔结构进行干燥。研究建立的标准化干燥流程可应用于相似结构的精密器械，以提高干燥效果，加快器械周转。

Objective To compare the drying efficacy of a hot air drying cabinet and a low-temperature negative pressure drying cabinet for Da Vinci robotic arms through experimental study.Methods 12 robotic arms with more than 10 usage cycles were randomly selected and divided into group A and group B based on the odd-even order of retrieval for repeated experiments.The experimental procedure was as follows:the robotic arms were weighed and cleaned.Group A was dried using a 90°C hot air drying cabinet,while group B was dried using a low-temperature negative pressure drying cabinet.The arms were removed and weighed every 8 minutes until a total drying time of 64 minutes was reached.The weight changes and moisture removal rates of the 2 groups were compared to evaluate the drying efficacy of different drying equipment.Results When the drying duration was less than 24 minutes,the weight reduction and moisture removal rate in group A were significantly greater than those in group B.When the drying duration was between 24 and 40 minutes,the weight reduction and moisture removal rate in group B were significantly higher than those in group A (all P＜0.05).At 64 minutes of drying,there was no statistically significant difference in the weight of the robotic arms between the groups (P＞0.05).Conclusions The hot air drying cabinet demonstrates superior efficacy in drying surface moisture on instruments,while the low-temperature negative pressure drying cabinet can continuously dry both the instrument surface and,in particular,the lumen structures.The standardized drying process established in this study can be applied to precision instruments with similar structures to improve drying efficacy and accelerate instrument turnover.

R472.1

浙江省卫生健康科技计划项目（2022ZH031）；浙江大学医学院附属第一医院护理科研项目（2024ZYHL40）