Abstract:ObjectiveTo explore the suitable cleaning method for ophthalmic instruments containing silicone oil by comparing the effect of two cleaning methods on the cleaning effect of 23G flute needles for vitrectomy, and to establish a standard procedure for cleaning ophthalmic flute needles to improve the cleaning quality and reduce the risk of postoperative infection in ophthalmic surgery.MethodsSixty ophthalmic vitrectomy 23G needles containing silicone oil were rando mly divided into experimental and control groups. The control group was cleaned directly by hand at a conventional temperature with a weak alkaline cleaning agent at 30 °C. The experimental group was cleaned by hand with a modified weak alkaline cleaning agent at 50 °C soaked in an ophthalmic ultrasonic cleaner for 10 minutes and then sonicated for 5 minutes. The silicone oil residue content of the ophthalmic needle was determined by gas chromatography before and after cleaning, and the silicone oil removal rate was calculated, and the cleaning pass rate of the ophthalmic needle was quantified by ATP for both groups.ResultsThe removal rate of silicone oil from the ophthalmic needle was 98.65% in the experimental group and 85.32% in the control group (P<0.05), and the cleaning ATP quantification rate was 100% in the experimental group and 80% in the control group (P<0.05).ConclusionThe use of a modified 50 °C weak alkaline detergent soaked for 10 minutes followed by ultrasonication for 5 minutes and then manual cleaning was more effective in removing silicone oil residues from 23G flute needles used for vitrectomy, and improved the quality of instrument cleaning.
Abstract:ObjectiveTo study the effect of different cleaning methods on the rapid removal of eschared laparoscopic surgical instruments.MethodsOne hundred and two eschared laparoscopic surgical instruments recovered after daily use from 13 April 2020 to 30 April 2020 were randomly and numerically divided into two groups for the study: 493 in the conventional group, using the method of multi-enzyme detergent immersion + ultrasound with enzyme-containing ultrasonic cleaner + steam cleaner; 509 in the experimental group, using the method of multi-enzyme detergent immersion + ready-to-use acid detergent immersion + Steam cleaning machine method.Results493 endoscopic instruments in the conventional group and 509 instruments in the experimental group were sampled, and 388 instruments in the conventional group were tested by visual inspection, with a pass rate of 79.67%, and 464 instruments in the experimental group, with a pass rate of 91.14%. In terms of cleaning time, 493 devices in the conventional group (106 bipolar, 122 electrocoagulation hooks, 93 ultrasonic knives, 71 ligasures, 101 robotic devices) took 1788-2158 hours to clean, while 509 devices in the experimental group (113 bipolar, 135 electrocoagulation hooks, 101 ultrasonic knives, 68 ligasures, 92 robotic devices) took 56-319 hours to clean. The test group took significantly less time to clean than the conventional group, and the difference was statistically significant (p<0.05).ConclusionThe use of multi-enzyme detergent soaking + ready-to-use acid detergent soaking + steam cleaning machine can greatly reduce the cleaning time of eschar desiccated laparoscopic instruments, effectively guarantee the cleaning quality and improve the turnover of laparoscopic surgical instruments.
Abstract:ObjectiveTo study the monitoring and management effect of the whole process of Da Vinci robot surgical instrument cleaning.MethodsA total of 1120 surgical instruments of Da Vinci robot used in our hospital from January 2019 to January 2020 were randomly selected as the subjects of this study. According to the method of random sampling and non repetition, the experimental group (n=570) and the control group (n=550) were divided into two groups. The experimental group used the method of manual and mechanical combination of full flow monitoring management, and the control group used the conventional manual cleaning method, The quality control of eyepiece test and biological indicator test were used to evaluate and analyze the qualification and bacteria test of the two cleaning and disinfection methods.ResultsIn the quality control results of eyepiece method and biological indicator method, the qualified rate of operation equipment, other auxiliary equipment and the total qualified rate of the experimental group were significantly higher than that of the control group, and the bacterial detection rate of the experimental group was less than that of the control group, the difference was statistically significant (P<0.05).ConclusionIn the cleaning and disinfection work of Da Vinci robot, strengthening the quality control and the whole process monitoring and management effect is particularly significant, which can improve the cleaning and disinfection quality, reduce the carrying of bacteria on the instrument, so as to improve the safety and effectiveness of the surgical instrument, which has clinical application value.
Keywords:Da Vinci robot;surgical instruments;cleaning;disinfection;whole process monitoring management
Abstract:ObjectiveAccording to the specification requirements of pressure steam sterilization equipment parameters such as temperature, time and pressure monitoring.MethodsUsing the corresponding pressure steam sterilization equipment according to temperature and pressure detector parameter validation of sterilization process, the key analysis compare the change of temperature, time.ResultsTen of the pressure steam sterilization equipment 40 monitoring stations, the temperature of 35 monitoring sites and bring the sterilization equipment shown in temperature data, temperature success rate is 87.5%; 33 points at the time of consistent with own sterilization equipment shown in time data, time success rate of 82.5%.ConclusionThe application of temperature and pressure detector to parameter validation of pressure steam sterilization equipment, can accurately for sterilization equipment operation monitoring, such as temperature, time, solved the use department of parameters in the process of using pressure steam sterilization equipment。
Keywords:Temperature and Pressure Examination;Steam Sterilization;Parameter Calibration;Use;Analyze
Abstract:ObjectiveTo analyse the effect of different steam on the quality of sterilization.MethodsThe influence of industrial steam and pure steam on sterilization was analysed in terms of non-condensable gases, dryness values and steam condensate, starting from the requirements of the specifications and experimental comparisons.ResultsIndustrial steam far exceeded the values given in the standard, while pure steam met the requirements of the standard.ConclusionThe sterilization effect of pure steam is better than that of industrial steam. In steam sterilization in sterile supply centres, more attention should be paid to the selection of the sterilization steam source to guarantee the final quality of sterilizatiox and to protect patient safety.
Abstract:ObjectiveTo explore the application of three testing methods, namely visual inspection method, insulation tester and insulation tester combined with magnification with light source, in the testing of insulation performance of electrosurgical instruments.MethodsTwo hundred and ninety electrosurgical instruments were selected from October 2020 to March 2021, and their insulation properties were examined by visual inspection, insulation detector and insulation detector combined with light source magnifier.ResultsThe three methods of visual inspection, the insulation detector and the insulation detector combined with a light source magnifying glass detected 3.45%, 11.03% and 15.52% of insulation breakage, respectively, p<0.05, with statistically significant differences. The differences were statistically significant.ConclusionThe visual inspection method is time consuming, laborious, has a low detection rate and is prone to leakage, and is not recommended for routine use. The Insulation Tester is an efficient, accurate, time- and labour-saving method for detecting insulation faults and can be used for daily testing of the insulation properties of electrosurgical instruments. The Insulation Tester combined with a lighted magnifying glass provides a more comprehensive and accurate detection of existing and potential faults in the insulation and can be used for regular testing of the insulation of electrosurgical instruments as it is relatively time consuming and labour intensive. Both of the latter are effective in preventing the risk of leakage from electrosurgical instruments and are of great importance for surgical safety.
Abstract:ObjectiveTo explore the application effect of SWOT analysis in the implementation of centralized management of stomatology instruments.MethodsTo establish a special work promotion team, apply SWOT analysis to the implementation of centralized stomatological appliance management, fully grasp the opportunities and challenges, and take corresponding countermeasures against the disadvantages in the implementation of centralized stomatological appliance management to promote the smooth development of the work.ResultsThe centralized management of stomatological instruments was carried out smoothly, the cleaning qualification rate of instruments rose from 70.6% up to 98.4%, the packaging sterilization qualification rate rose from 86.4% up to 99.2%, and the satisfaction rate of instrument handling supply increased.ConclusionThe use of SWOT analysis in the implementation of centralized instrument handling management in the sterile supply centre allows managers to make full use of the advantageous conditions, identify the disadvantages in the work, adopt effective countermeasures in a purposeful and planned manner, promote the efficient operation of the centralized instrument management mode in the outpatient dental department, improve the quality of instrument handling and service satisfaction, and promote the development of the subspecialty.
Abstract:ObjectiveTo analyze the drying effect of two groups of simple respirator drying methods and explore a better drying method.Methods120 simple respirators cleaned and disinfected in the disinfection supply room of a 3A hospital in January 2021 were selected and randomly divided into control group (60 drying cabinets) and observation group (60 drying racks+drying cabinets). The remaining water stains in the respirators were absorbed and weighed with 0.3 g cotton balls after 10 and 15 minutes of drying respectively. The results of 10 and 15 minutes of drying were compared between the two groups 15 minutes of drying and the number of cases of complete drying, two groups of drying methods, all respirators complete drying time.ResultsAfter drying for 10 minutes, the weight gain of the control group was 2.45%±20 g, the weight gain of cotton ball in the observation group was 0.62±19 g, 0 in the control group and 7 in the observation group, P=0.004; After drying for 15 minutes, the weight gain of cotton balls in the control group was 2.14%±52 g, the weight gain of cotton ball in the observation group was 0.29±0.04 g, the number of completely dry cases in the control group was 0, and the number of dry cases in the observation group was 19, P=0.00. The complete drying time of the control group was 95.72±07 minutes; The complete drying time of the observation group was 13.10±75 minutes, P=0.00, the difference was statistically significant (P<0.05).ConclusionUsing self-made drying frame can shorten the drying time of simple respirator, improve the qualified rate of respirator drying and the working efficiency of disinfection supply center.
Keywords:Self made design;simple respirator;drying time