1 Introduction Infection control involves lots of information about consumables,so an overview of chemical steam sterilization indicators is provided to help healthcare staffs know recent developments of chemical stea...1 Introduction Infection control involves lots of information about consumables,so an overview of chemical steam sterilization indicators is provided to help healthcare staffs know recent developments of chemical steam sterilization indicators.The main method for sterilization of medical devices is steam sterilization,and the sterilization mechanism is destroying the protein strings by coagulation[1-2].Without the complete protein strings,the organisms展开更多
Introduction： There are several components in motion before steam reaches its destination. Each element plays a significant role in generating adequate steam for terminal sterilization of critical devices. The knowl...Introduction： There are several components in motion before steam reaches its destination. Each element plays a significant role in generating adequate steam for terminal sterilization of critical devices. The knowledge and awareness of factors that contribute to wet packs will assist in maximizing steam quality. Steam sterilization of critical devices such as surgical instruments in the acute care setting is fundamentally necessary to prevent infection. Sterile packaging that is wet after removal from the autoclave is considered contaminated. This wet pack presents a significant infection risk and indicates a defect in the sterilization process. The identification of wet packs prompted the exploration of the sterilization process. In reviewing the evolution of steam production, our investigation began in the boiler room. The assessments of the boiler operations, steam quality, and loading technique of the autoclaves were examined as possible contributing factors in the propagation of wet packs. Methods： The investigation was performed in a 592-bed non-teaching acute care facility in New Jersey. Methods to ensure the integrity of steam included; a cut point of 〈 3,500 ppm TDSs （total dissolved solids）, （daily） calibration of the TDS analyzer to ensure accurate TDS measurement, increase in autoclave drying times, reduction of the weight density of surgical trays from 25 lbs. to 20 lbs., and revision of sterilization loading practices. Modifications were implemented from June 2015 to December 2015. Results： No wet packs were identified from January through May 2016. In June 2016, 2 wet packs were detected, and upon further analysis there was an increase in the water level of the boiler drum. After this special cause variation, no wet packs have been identified. Conclusion： The monitoring and documentation of boiler room parameters and CSP （central sterile processing） practice modifications may have impacted the reduction of wet pack.展开更多
浴缸形状的失效率函数因其能够捕捉某些实际情境中的故障率特征,在机械结构可靠性分析中至关重要。引入一种修正广义幂威布尔(Modified Power Generalized Weibull,MPGW)分布,能够建模表征浴缸形状的失效率变化规律。为评估该模型的有效...浴缸形状的失效率函数因其能够捕捉某些实际情境中的故障率特征,在机械结构可靠性分析中至关重要。引入一种修正广义幂威布尔(Modified Power Generalized Weibull,MPGW)分布,能够建模表征浴缸形状的失效率变化规律。为评估该模型的有效性,本研究使用了压力蒸汽灭菌器故障数据集进行实证研究,并将其性能与5种经典分布模型进行了比较,发现该模型在灵活性上具有较大优势。展开更多
文摘1 Introduction Infection control involves lots of information about consumables,so an overview of chemical steam sterilization indicators is provided to help healthcare staffs know recent developments of chemical steam sterilization indicators.The main method for sterilization of medical devices is steam sterilization,and the sterilization mechanism is destroying the protein strings by coagulation[1-2].Without the complete protein strings,the organisms
文摘Introduction： There are several components in motion before steam reaches its destination. Each element plays a significant role in generating adequate steam for terminal sterilization of critical devices. The knowledge and awareness of factors that contribute to wet packs will assist in maximizing steam quality. Steam sterilization of critical devices such as surgical instruments in the acute care setting is fundamentally necessary to prevent infection. Sterile packaging that is wet after removal from the autoclave is considered contaminated. This wet pack presents a significant infection risk and indicates a defect in the sterilization process. The identification of wet packs prompted the exploration of the sterilization process. In reviewing the evolution of steam production, our investigation began in the boiler room. The assessments of the boiler operations, steam quality, and loading technique of the autoclaves were examined as possible contributing factors in the propagation of wet packs. Methods： The investigation was performed in a 592-bed non-teaching acute care facility in New Jersey. Methods to ensure the integrity of steam included; a cut point of 〈 3,500 ppm TDSs （total dissolved solids）, （daily） calibration of the TDS analyzer to ensure accurate TDS measurement, increase in autoclave drying times, reduction of the weight density of surgical trays from 25 lbs. to 20 lbs., and revision of sterilization loading practices. Modifications were implemented from June 2015 to December 2015. Results： No wet packs were identified from January through May 2016. In June 2016, 2 wet packs were detected, and upon further analysis there was an increase in the water level of the boiler drum. After this special cause variation, no wet packs have been identified. Conclusion： The monitoring and documentation of boiler room parameters and CSP （central sterile processing） practice modifications may have impacted the reduction of wet pack.
文摘浴缸形状的失效率函数因其能够捕捉某些实际情境中的故障率特征,在机械结构可靠性分析中至关重要。引入一种修正广义幂威布尔(Modified Power Generalized Weibull,MPGW)分布,能够建模表征浴缸形状的失效率变化规律。为评估该模型的有效性,本研究使用了压力蒸汽灭菌器故障数据集进行实证研究,并将其性能与5种经典分布模型进行了比较,发现该模型在灵活性上具有较大优势。
