1.Development and actuality of patient monitoring products in our country.
Yin-bao CHONG ; Chang-ning SHI
Chinese Journal of Medical Instrumentation 2005;29(5):362-365
A new specialty and trend of the clinical patient monitoring products have appeared. They include the consciousness of clinical monitoring, the product supply, the functional expansion, the application of new techniques in the patient monitoring and the development of the clinical information system (CIS).
China
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Monitoring, Physiologic
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economics
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instrumentation
;
trends
2.Experimental research on the electromagnetic radiation immunity of a kind of portable monitor.
Jun YUAN ; Dongping XIAO ; Xin JIAN
Chinese Journal of Medical Instrumentation 2010;34(6):418-420
The paper is focused on a kind of portable monitor that is widely used in military hospitals. In order to study the electromagnetic radiation immunity of the monitor, the experiments of electromagnetic radiation caused by radio frequency continuous wave in reverberation chamber and by ultra wide band (UWB) electromagnetic pulse have been done. The study results show that UWB electromagnetic pulse interferes observably the operating state of the monitor. It should be paid high attention to take protective measures. The monitor tested has some electromagnetic immunity ability for radio frequency continuous wave radiation. The frequent abnormal phenomena are baseline drift and waveform distortion. The electromagnetic sensitivity of the monitor is related to the frequency of interference source. The monitor tested is most sensitive to the frequency of 390 MHz.
Electromagnetic Fields
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Electromagnetic Radiation
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Monitoring, Physiologic
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instrumentation
3.The research and design of non-invasive cardiac output detector based on pulse graph theory.
Chinese Journal of Medical Instrumentation 2011;35(5):344-347
This cardiac output detector uses AT89C52 as the core MCU, carries the pulse signal sampling from pulse sensor into the SCM after A/D conversion, and then figures out the cardiac output value and displays it on the LED. Software analysis works out the cardiac output value through five-point difference threshold for feature location of the pulse graph method theory. Experiment results show that the normal measured cardiac output is 5.411 L/min, the standard deviation of 0.873, while the catheter method as the gold standard of the mean 5.51 L/min, the standard deviation of 1.09. This system can meet the testing requirements of normal cardiac output. It is a non-invasive, convenient and new cardiac output measurement instrument with continuous testing, easy operation and low cost.
Cardiac Output
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Monitoring, Physiologic
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instrumentation
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methods
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Pulse
4.Development of Cardiac Output Monitoring Technology.
Yang SUN ; Xu ZHANG ; Jilun YE ; Jiapeng PENG ; Pengfei LYU
Chinese Journal of Medical Instrumentation 2018;42(4):268-271
Cardiovascular disease has become a serious disease that threatens the health of human beings, cardiac output is an important indicator of cardiovascular function, monitoring cardiac output and related hemodynamic parameters have significant clinical value. This article summarizes the development history, principle, method, advantages and disadvantages of various monitoring technologies from three aspects:invasive, minimally invasive and noninvasive, the development and application of cardiac output monitoring technology are prospected.
Cardiac Output
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Hemodynamics
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Humans
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Monitoring, Physiologic
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instrumentation
5.Design of Multi-parameter Monitoring System Based on Embedded Linux+Qt.
Yong XIANG ; Yueming CHEN ; Jilun YE ; Bin WEN ; Haiyang HU
Chinese Journal of Medical Instrumentation 2020;44(2):127-131
OBJECTIVE:
To establish the system software of multi-parameter monitoring by embedded Linux kernel and Qt library.
METHODS:
To determine the hardware system needed for the development of the system, carry out system Bootloader (Bootloader), Linux kernel, file system and Qt/Embedded (QtE) tailoring and transplantation and application development on the basis of the hardware system, and achieve the characteristic UI design.
RESULTS:
The changes of physiological parameters were observed in real time to improve the stability and real-time performance of the whole system and increase users' experience with QtE.
CONCLUSIONS
The embedded Linux+Qt multi-reference monitoring system can improve the stability, operability and functionality of real-time monitoring and multi-physiological information, and has good extensibility and maintainability.
Computers
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Electrocardiography
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Humans
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Monitoring, Physiologic/instrumentation*
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Software
6.Research and implementation of a real-time monitoring system for running status of medical monitors based on the internet of things.
Yiming LI ; Mingli QIAN ; Long LI ; Bin LI
Chinese Journal of Medical Instrumentation 2014;38(4):242-246
This paper proposed a real-time monitoring system for running status of medical monitors based on the internet of things. In the aspect of hardware, a solution of ZigBee networks plus 470 MHz networks is proposed. In the aspect of software, graphical display of monitoring interface and real-time equipment failure alarm is implemented. The system has the function of remote equipment failure detection and wireless localization, which provides a practical and effective method for medical equipment management.
Computer Systems
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Equipment Design
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Internet
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Monitoring, Physiologic
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instrumentation
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Telemetry
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instrumentation
7.Development of automatic urine monitoring system.
Liang WEI ; Yongqin LI ; Bihua CHEN
Chinese Journal of Medical Instrumentation 2014;38(2):114-121
An automatic urine monitoring system is presented to replace manual operation. The system is composed of the flow sensor, MSP430f149 single chip microcomputer, human-computer interaction module, LCD module, clock module and memory module. The signal of urine volume is captured when the urine flows through the flow sensor and then displayed on the LCD after data processing. The experiment results suggest that the design of the monitor provides a high stability, accurate measurement and good real-time, and meets the demand of the clinical application.
Autoanalysis
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instrumentation
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Equipment Design
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Monitoring, Physiologic
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instrumentation
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Urination
8.Closed-loop blood transfusion management system based on PDA.
Yiyi CHEN ; Canda CHEN ; Luo LUO ; Zhou YIN ; Min ZHOU ; Qiong XIE ; Min XU ; Qiutao ZHANG
Chinese Journal of Medical Instrumentation 2013;37(5):376-378
A closed-loop transfusion management system is constructed that covers blood preservation, transportation, transfer, distribution of blood, distribution, clinical blood specimen collection and blood transfusion process, which can monitor the implementation of doctor's advice, view the transport process of blood and blood samples, and record blood transfusion and adverse reaction information. These measurements can play a good effect in reduction of manual records and handover links in blood transfusion management, enhance the blood bank management, guarantee safely using blood, and realize the goal of real-time monitoring and closed-loop management.
Blood Transfusion
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instrumentation
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nursing
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Medical Informatics Applications
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Monitoring, Physiologic
;
instrumentation
9.Advances of portable electrocardiogram monitor design.
Shenping DING ; Yinghai WANG ; Weirong WU ; Lingli DENG ; Jidong LU
Journal of Biomedical Engineering 2014;31(3):708-713
Portable electrocardiogram monitor is an important equipment in the clinical diagnosis of cardiovascular diseases due to its portable, real-time features. It has a broad application and development prospects in China. In the present review, previous researches on the portable electrocardiogram monitors have been arranged, analyzed and summarized. According to the characteristics of the electrocardiogram (ECG), this paper discusses the ergonomic design of the portable electrocardiogram monitor, including hardware and software. The circuit components and software modules were parsed from the ECG features and system functions. Finally, the development trend and reference are provided for the portable electrocardiogram monitors and for the subsequent research and product design.
China
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Electrocardiography
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instrumentation
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Equipment Design
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Humans
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Monitoring, Physiologic
;
instrumentation
;
Software
10.Design of a universal robot system for health monitoring and medical services.
Zhang SAI ; Dong HAIQIANG ; D U HONGWEI ; Jing ZHAO-HUI
Chinese Journal of Medical Instrumentation 2010;34(1):29-34
An autonomous robot system that is able to provide real time health monitoring and simple medical services is realized in this design. The system applies multiple sensors to monitor ordinary healthcare parameters, which is then transmitted via ZigBee network. In case of emergency, real time medicine delivery service is provided by the robot, applying a novel Received Signal Strength (RSS) based location method in ZigBee network. The system combines healthcare monitoring, data transmission and real time location into several portable wireless nodes, with the advantage of cost effectiveness, low power and easiness for configuration. Field tests under indoor environment have proved the stability and practicability of this design.
Computer Communication Networks
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instrumentation
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Equipment Design
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Monitoring, Ambulatory
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instrumentation
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Monitoring, Physiologic
;
instrumentation
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Robotics