1.Study on the differences of clinical application in pediatric patients for different brands infrared ear thermometers
Lin WANG ; Caixian ZHENG ; Linxiang HE ; Kun ZHENG ; Baiping LI ; Yunming SHEN
China Medical Equipment 2024;21(6):214-216
		                        		
		                        			
		                        			Objective:To explore the differences in the clinical application of different brands of infrared ear thermometers in pediatric patients,and to guide the rational use of infrared ear thermometers.Methods:A total of 164 inpatients and outpatients who received treatment in the Children's Hospital of Zhejiang University School of Medicine from May 2023 to July 2023 were randomly selected,and three different brands of ear thermometers were used to measure the ear temperature of the children in the same measurement method.The differences in temperature and time measured by different brands of ear thermometers in children of different ages were compared.Results:The temperature and time measurements of the three ear thermometers were compared,the difference was statistically significant(F=5.007,264.988,P<0.05).The temperature of children aged≤3 months was measured by the three ear thermometers,and the difference was statistically significant(F=3.868,P<0.05).there was no difference in children aged over 3 months.Conclusion:For children of different ages,medical institutions can make choices based on the comprehensive consideration of the use cost,the speed of measurement time and other factors.For children aged over 3 months,choose product B with lower cost and faster measurement time,for children aged 0-3 months,it is recommended to choose product A with more accurate temperature measurement values.
		                        		
		                        		
		                        		
		                        	
2.Research on the Quality Control of Routine Reusable Pipeline and Disposable Pipeline of Ventilator
Li BAO ; Yunming SHEN ; Siwei XIANG ; Kun ZHENG
Chinese Journal of Medical Instrumentation 2024;48(1):111-113
		                        		
		                        			
		                        			Objective To explore the effect of routine reusable pipeline and disposable pipeline on ventilator quality control results.Methods 17 ventilators were randomly selected to conduct quality control using routine reusable pipeline and disposable pipeline respectively.Quality control data were recorded and then paired t-test method was used to analyze whether the difference between the two pipelines was significant or not.Results There were no significant differences in respiratory rate,tidal volume and end airway pressure between the two types of pipes(P>0.05).The airway peak pressure of routine reusable pipeline was significantly higher than disposable pipeline(P<0.05),but the difference was very small,only about 0.2 mbar which would not affect the conclusion of quality control.Conclusion Quality control of ventilator is not affected by routine reusable pipeline and disposable pipeline,which can be replaced by each other.
		                        		
		                        		
		                        		
		                        	
3.Empirical Study on the Impact of Infusion Media on the Flow Rate of Infusion Pumps
Ning YAO ; Li BAO ; Zhongkuan LIN ; Yunming SHEN ; Kun ZHENG
Chinese Journal of Medical Instrumentation 2024;48(4):430-433
		                        		
		                        			
		                        			Objective To investigate the impact of different infusion media on the flow rate of infusion pumps.Methods Ten infusion pumps were randomly selected and tested for infusion rates using deionized water,saline solution,glucose solution,and parenteral nutrition solution.The infusion flow rate was set at 30 mL/h,and the testing methodology conformed to the standards for the calibration and quality control of syringe pumps and infusion pumps.Results For infusion set A,the infusion rate was unaffected by the infusion media,remaining within the acceptable quality control standards.For infusion set B,when infused with deionized water,saline solution,and glucose solution,the infusion errors were within the quality control standards.However,when using parenteral nutrition solution as the infusion medium,the infusion error exceeded the acceptable quality control standards.Conclusion Both the infusion set and the infusion medium can affect the flow rate of infusion pumps.It is crucial to calibrate the flow rate according to the specific infusion medium to reduce medical risks associated with infusion pumps during clinical use.
		                        		
		                        		
		                        		
		                        	
4. Analysis of clinical characteristics of new coronavirus pneumonia patients in secondary epidemic areas
Weiping JI ; Xinxin CHEN ; Hui XU ; Chenci JIN ; Yunming HU ; Chengyuan JI ; Xian SHEN
Chinese Critical Care Medicine 2020;32(2):E009-E009
		                        		
		                        			 Objective:
		                        			Understand the clinical characteristics of confirmed pneumonia patients infected with new corona virus in secondary epidemic areas and guide the diagnosis and treatment of novel pneumonia in secondary epidemic areas and provide a reference for clinical prevention and control of the epidemic situation.
		                        		
		                        			Methods:
		                        			The clinical data of 33 patients admitted with pneumonia caused by a novel coronavirus in the Second Affiliated Hospital of Wenzhou Medical University from January 15 to February 1, 2020, were retrospectively reviewed. At the onset of the disease, we analyzed the primary symptoms such as fever, cough, fatigue, chest tightness, chest pain and also a significant blood test results of the patients. According to the patient's contact history, it was divided into the direct infection group of the main epidemic area and the indirect contact infection group of the main epidemic areas. The difference between clinical manifestations among the two groups was analyzed.
		                        		
		                        			Results:
		                        			The main clinical symptoms of patients with novel coronavirus pneumonia in the secondary epidemic area were respiratory tract and systemic symptoms. After grouping according to the presence and absence of direct contact in the main epidemic area, there was no significant difference in baseline data between the two groups, and there was no significant difference in symptoms and signs between the two groups (
		                        		
		                        	
5.Development of a Deep Learning Algorithm for Classification of Neuroblastoma.
Long CHEN ; Kun ZHENG ; Yunming SHEN ; Chang SU
Chinese Journal of Medical Instrumentation 2019;43(4):255-258
		                        		
		                        			
		                        			In this paper, the classification and location of neuroblastoma in NMR images are realized by using Deep Neural Network(CNN) algorithm as the core technology. The module is integrated to realize the development of computer-aided diagnostic software. It is used to make up for the gap in the field of intelligent identification and accurate positioning of neuroblastoma in the current nuclear magnetic resonance detection technology, effectively reduce the work intensity of doctors reading films, and further promote the clinical application and technical development of nuclear magnetic resonance detection technology in the diagnosis of neuroblastoma.
		                        		
		                        		
		                        		
		                        			Algorithms
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		                        			Deep Learning
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		                        			Humans
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		                        			Magnetic Resonance Imaging
		                        			;
		                        		
		                        			Neural Networks (Computer)
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		                        			Neuroblastoma
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		                        			diagnostic imaging
		                        			
		                        		
		                        	
6.Research on Procurement Classifcation of Medical Equipment Based on Kraljic Model.
Caixian ZHENG ; Kun ZHENG ; Yunming SHEN ; Lin WANG ; Chang SU ; Yunyun WU
Chinese Journal of Medical Instrumentation 2019;43(2):150-153
		                        		
		                        			
		                        			Based on the Kraljic model,this paper established the scoring standard system for medical equipment procurement,and determined the weight coefficients of each evaluation factor by the analytic hierarchy process (AHP),then the procurement classification model of medical equipment was successfully established.It is proved that this model can classify medical equipment effectively,which enables the purchasing personnel to adopt corresponding purchasing strategies according to different classification.This model can be extended to all medical equipment procurement,realizing the delicacy and individualized procurement management of the equipment,which has strong operability and guiding significance.
		                        		
		                        		
		                        		
		                        			Equipment and Supplies
		                        			;
		                        		
		                        			economics
		                        			;
		                        		
		                        			Models, Theoretical
		                        			
		                        		
		                        	
7.Hospital Networked Medical Equipment Safety Management.
Mangmang ZHANG ; Kun ZHENG ; Yunming SHEN ; Zhongkuan LIN ; Zheming LI
Chinese Journal of Medical Instrumentation 2018;42(4):303-304
		                        		
		                        			
		                        			With the continuous improvement and wide application of hospital information, more and more medical equipment is integrated into the hospital information systems, which brings new work contents and challenges for the traditional clinical engineers. This paper reviews and evaluates the current situation of networked medical equipment in the hospital. By applying the ISO 80001 and the MDS(Manufacturer Disclosore Statement for Medical Device Security), the paper puts forward the measures and suggestions for the security management of networked medical equipment.
		                        		
		                        		
		                        		
		                        			Equipment Safety
		                        			;
		                        		
		                        			Equipment and Supplies
		                        			;
		                        		
		                        			Hospital Information Systems
		                        			;
		                        		
		                        			Safety Management
		                        			
		                        		
		                        	
8.System Integration of Infant Incubators' Quality Control Testing Based on MCU.
Long CHEN ; Kun ZHENG ; Yunming SHEN
Chinese Journal of Medical Instrumentation 2018;42(4):259-261
		                        		
		                        			
		                        			This study is aimed to design the testing system of multiple parameters of the incubators, and to make their quality control plans. Also it is required to establish a model of data collection and processing based on MCU, and to program the host computer software in order to analyze data. The result shows that the testing system is accurate and stable; also it is convenient to collect the data. This testing system is a good complement of the quality control of incubators. It has a high practical value in improving medical safety and reducing the occurrence of adverse events.
		                        		
		                        		
		                        		
		                        			Incubators
		                        			;
		                        		
		                        			Incubators, Infant
		                        			;
		                        		
		                        			standards
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		                        			Infant, Premature
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		                        			Quality Control
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		                        			Software
		                        			
		                        		
		                        	
9.Research on the Clinical Alarm Management Mechanism Based on Closed-loop Control Theory.
Zhongkuan LIN ; Kun ZHENG ; Yunming SHEN ; Yunyun WU
Chinese Journal of Medical Instrumentation 2018;42(3):173-175
		                        		
		                        			
		                        			This paper proposes a clinical alarm management system based on the theory of the closed loop control. The alarm management mechanism can be divided into the expected standard, improving execution rule, rule execution, medical devices with alarm functions, results analysis strategy and the output link. And, we make relevant application and discussion. Results showed that the mechanism can be operable and effective.
		                        		
		                        		
		                        		
		                        			Clinical Alarms
		                        			;
		                        		
		                        			Decision Support Systems, Clinical
		                        			
		                        		
		                        	
10.Survey and Discussion on VentiIator AIarm Status in ICU
Zhongkuan LIN ; Kun ZHENG ; Yunming SHEN ; Caixian ZHENG ; Xiaoying CHENG
Chinese Journal of Medical Instrumentation 2017;41(6):460-463
		                        		
		                        			
		                        			Objective The article aims at survey and analysis on ventilator alarm status in pediatric hospital. Methods First,we design the statistical table of ventilator, and analyze the reliability of statistical table. Then we evaluate the effectiveness of the alarm. Finally, we evaluate the alarm information synthetically through investigation and statistics.Results The ventilator alarm is ineffective, a large number of nonsensical alarms, leading to lower alert sensitivity of medical staff. Conclusion According to the survey results, we should analyze the cause of the problem, and propose the corresponding alarm management method.
		                        		
		                        		
		                        		
		                        	
            
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