Cleaning is an essential step in the processing of reusable devices, which ranges from noncritical devices that only touch the skin to critical devices that contact with sterile areas of the body ^1 ^. All the reusabl...Cleaning is an essential step in the processing of reusable devices, which ranges from noncritical devices that only touch the skin to critical devices that contact with sterile areas of the body ^1 ^. All the reusable devices must be clean to ensure surfaces of devices are freedom from harmful residues and compliance with various regulatory requirements. The residues, especially bacteria, can readily adhere to wet surfaces and form organized colonies of cells termed biofilms, which are enclosed in a self-excreted matrix composed extracellular polymeric substance (EPS) [2] ?展开更多
Moist heat sterilization is one of the most common sterilization methods in hospitals.Among all the ways of sterilization monitoring,biological monitoring is the most accurate one,which has become the focus of numerou...Moist heat sterilization is one of the most common sterilization methods in hospitals.Among all the ways of sterilization monitoring,biological monitoring is the most accurate one,which has become the focus of numerous studies in recent years.Bacillus stearothermophilus ATCC7953,as a kind of standard bacterial strain,receives much attention.Biological indicator(BI)able to read in shorter time is called as Rapid-Read biological indicator(RRBI).This article will introduce several characters of ATCC7953 including some simple parameters and spores germination.Additionally,the application of ATCC7953 in BI,especially RRBI,will also be covered.展开更多
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
Biological indicator(BI)is the gold standard in verifying the effectiveness of the sterilization processes.The resistance of biological indicators generally means the population of viable organism and D value.The popu...Biological indicator(BI)is the gold standard in verifying the effectiveness of the sterilization processes.The resistance of biological indicators generally means the population of viable organism and D value.The population and the D value are all not intrinsic,which will vary according to the lot,the manufacturer.Spores,carrier,recovery medium and the packaging compose the self-contained biological indicators.And all of the component will affect BI resistance.Different kinds of carrier spore inoculated on exhibit different manners to attach different D-values.Another factor that affects the resistance of BI is spore production methods.The sporulation conditions including temperature,p H,humidity,nutrient and ions content,largely influence the spore resistance to heat.Furthermore,resistometer performance and the different test method are also the major source of the D value variation.All the factors affect the resistance of biological in an comprehensive manner,and when a resistance variation occur,all the factors above should be taken into consideration.展开更多
文摘Cleaning is an essential step in the processing of reusable devices, which ranges from noncritical devices that only touch the skin to critical devices that contact with sterile areas of the body ^1 ^. All the reusable devices must be clean to ensure surfaces of devices are freedom from harmful residues and compliance with various regulatory requirements. The residues, especially bacteria, can readily adhere to wet surfaces and form organized colonies of cells termed biofilms, which are enclosed in a self-excreted matrix composed extracellular polymeric substance (EPS) [2] ?
文摘Moist heat sterilization is one of the most common sterilization methods in hospitals.Among all the ways of sterilization monitoring,biological monitoring is the most accurate one,which has become the focus of numerous studies in recent years.Bacillus stearothermophilus ATCC7953,as a kind of standard bacterial strain,receives much attention.Biological indicator(BI)able to read in shorter time is called as Rapid-Read biological indicator(RRBI).This article will introduce several characters of ATCC7953 including some simple parameters and spores germination.Additionally,the application of ATCC7953 in BI,especially RRBI,will also be covered.
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Biological indicator(BI)is the gold standard in verifying the effectiveness of the sterilization processes.The resistance of biological indicators generally means the population of viable organism and D value.The population and the D value are all not intrinsic,which will vary according to the lot,the manufacturer.Spores,carrier,recovery medium and the packaging compose the self-contained biological indicators.And all of the component will affect BI resistance.Different kinds of carrier spore inoculated on exhibit different manners to attach different D-values.Another factor that affects the resistance of BI is spore production methods.The sporulation conditions including temperature,p H,humidity,nutrient and ions content,largely influence the spore resistance to heat.Furthermore,resistometer performance and the different test method are also the major source of the D value variation.All the factors affect the resistance of biological in an comprehensive manner,and when a resistance variation occur,all the factors above should be taken into consideration.
