Sysmex KX-21型血球计数仪常见故障分析及排除

日本东亚医用电子株式会社生产的KX-21型血球计数仪是一种适合于病房、门诊临床分析检查室进行血液检查的多项目自动血球计数仪器.它具有1小时约60个标本的处理能力,并将所测量标本的白细胞、红细胞、血小板的粒度分布曲线和18个项目的测量数据做为测量结果显示在LCD画面上.     

基于单片机辅助的导管球囊内压力自动调控仪的设计

目的 本文旨在介绍一种可自动调控医用导管球囊内压力的新型仪器的设计.方法 本文从导管球囊内压力自动调控仪的构成及硬件、软件设计三个方面进行了介绍;本仪器还设计一个液体和气体压力转换装置,从而达到测量充液球囊内压力的目的 .结果该仪器具有能实时显示球囊内压力,能自动调节球囊内的压力,维持球囊内压力恒定在设定的范围内并使球囊内压力在设定的条件下维持一定的充盈时间.可以自动在多种设定的工作条件之间切换并自动记录、存储测量到的数据.结论 该仪器智能化程度高,提高了临床操作的安全性和科学研究的精确性;减少了医务人员和科研人员工作的劳动强度.     

简易自动校零中心静脉压测量尺的研究与应用

目的 探讨一种更简便实用的测量中心静脉压方法.方法 测量病例30例.经外周静脉,置入改制漂浮导管,其中一接口接液压传感器系统,另一接口分别通过3个医用三通与水平测量尺校零、直角限位尺指示校零、自制简易自动调零中心静脉压测量尺,同时进行中心静脉压测量,比较其测量时间及测量数值.结果 初次测量中简易自动调零中心静脉压测量尺所用时间最短.简易自动调零中心静脉压测量尺与液压传感器系统所测中心静脉压值的差异无统计学意义(P>0.05),水平测量尺校零、直角限位尺指示校零所测中心静脉压值波动较大、测量时间长.结论 应用简易自动调零中心静脉压测量尺进行中心静脉压测量较其他测压法更简便,测量值更准确.     

用于溶液表面吸附研究的微机软件设计

设计了一种微机快速处理物理化学实验数据的软件。借助该软件和微机，采用人机对话输入原始实验数据，如正了醇溶液的温度、浓度和表面张力等后，通过曲线拟合法，微机可自动输出正丁醇分子的饱和吸附量、分子截面积等实验结果。与手工处理的曲线切线法相比，本法更简便、快速、准确。新设计的软件可用于溶液表面吸附的科学研究和物理化学实验的计算机辅助教学。     

用于溶液表面吸附研究的微机软件设计

设计了一种微机快速处理物理化学实验数据的软件。借助该软件和微机，采用人机对话输入原始实验数据，如正丁醇溶液的温度、深度和表面张力等后，通过曲线拟合法，微机可自动输出正丁醇分子的饱和吸附量，分子截面积等实验结果。与手工处理的曲线切线法相比，本法更简便、快速、准确。新设计的软件可用于溶液表面吸附的科学研究和物理化学实验的计算机辅助教学。     

用于溶液表面吸附研究的微机软件设计

设计了一种微机快速处理物理化学实验数据的软件。借助该软件和微机，采用人机对话输入原始实验数据，如正丁醇溶液的温度、浓度和表面张力等后，通过曲线拟合法、微机可自动输出正丁醇分子的饱和吸附量、分子截面积等实验结果。一手工处理的曲线切线法相比，本法更简便、快速、准确。新设计的软件可用于溶液３表面吸附的科学研究和物理化学实验的计算机辅助教学。     

阻塞报警压力测量及不确定度评定在注射泵质量控制中的应用

目的研究阻塞报警压力测量及其不确定度在医用注射泵质量控制中的应用。方法在规范标准环境条件下,测量医用注射泵的阻塞报警压力,依据JJF1059.1-2012进行不确定度评定,并依据此不确定度对医用注射泵的质量进行综合评定。结果阻塞报警压力测量结果的不确定度评定可用于合理评估医用注射泵的质量性能,对医学设备工程部门进行医用注射泵的质量控制提供指导。结论对医用注射泵阻塞报警压力的不确定度分析和评定,是科学进行质量控制的有效定量方法,此方法对其他的医用计量设备(如监护仪、呼吸机等)的质控有借鉴意义。     

强磁场环境下的主观疼痛计

目的在脑研究中有时需要受试者表达自己的主观感受，这种感受可以通过适当传感器送到计算机进行整合处理，但如果受试者同时在核磁共振仪中接受核磁检查时一般的传感器则无法完成。我们通过实验试制了一种基于光学测量的数据采集系统，可以在强磁场环境：得到受试者的表达并且不干扰核磁共振成像系统。     

机房智能系统的设计与实现

目的 利用智能机房系统(ICS)保障计算机数据网络中心机房的设备正常运行.方法 使用工业级计算机网络和工业控制系统的仪表、传感器、执行器、控制器等设备,构成稳定可靠的自动化系统.结果 ICS对机房运行环境、电力状况、安全保障、消防灭火报警等能自动监视控制处理,保障了计算机数据网络中心机房的设备正常运行.结论 ICS是一...     

医用压力传感器原理及其应用

本文阐述了一种作为医用压力传感器的固态压阻式传感器的基本原理以及在医疗测量仪器设备中的应用和使用中的注意事宜，目的在于提高对医用传感器的认识，更好地利用高科技为医疗装备的发展服务。     

YM—I型电脑心血管系统诊断仪的研制和临床应用

本文介绍一种脉图信号的数据采集和处理装置.该装置以国产Z-80cpu微处理机为核心主件,通过计算机对人体桡动脉脉图进行自动采集、分析和计算处理,自动打印输出人体心血管功能的23个参数,以便对心血管功能进行综合评价。该仪器具有无创伤、简便快速、定量准确可靠、重复性好等优点,在临床医学、药物研究、运动医学等方面有广阔的应用前景。     

面向神经内科的信息辅助分析管理系统设计

随着计算机技术在医学领域的发展，医生科研工作者也越来越多应用计算机技术结合ll每床知识与数据进行诊断与科研。结合当前流行的sSH框架，设计并实现了基于wEB的面向神经内科的科研信息辅助管理与分析系统，为神经内科医生提供了一个数据管理与科研平台。     

“军事医学电子工程”的若干研究方向与发展

“军事医学电子工程”是集军事医学、传感器技术、微电子技术、计算机技术和现代通信技术等为一体的交叉学科分支,作综术褡讨论了这些工程技术在战时卫勤保障中的主要研究内容和发展方向,特别关注单兵电子卫生装备、战时远程医疗技术和核生化侦检技术等当前焦点领域,给出了外军的一些研究现状和典型应用实例。     

Randomised controlled trial of computer assisted management of hypertension in primary care

The hypothesis that general practitioners would obtain better outcomes for patients with hypertension using a computer than doctors not using a computer was tested. Sixty family physicians were randomised to two treatment strategies. "Test" physicians completed a data collection form after each visit from a patient with hypertension and mailed the forms to the test centre for processing. Computer feedback on management was mailed to the doctors. This encouraged doctors to apply the "stepped care" protocol, supplied charts of diastolic blood pressure v time, and ranked patients' diastolic blood pressures by percentile. Letters were mailed to patients to remind them of appointments. "Control" doctors filled out the same data collection forms as test physicians, but neither doctors nor patients received computer feedback. Physicians who used the computer saw more patients per practice than control doctors (test 50 patients, control 40). For all patients the length of follow up was significantly longer in test practices (test 199 days, control 167), and a smaller percentage dropped out of active treatment in test practices (test 37.5%, control 42.1%). For patients with "moderate" hypertension of a baseline diastolic pressure of greater than 104 mm Hg the mean score of the last recorded pressure was below the goal of 90 mm Hg in test practices (88.5 mm Hg), but it failed to reach this goal in control practices (93.3 mm Hg). A greater average reduction of diastolic pressure was achieved in test practices (test 21.7 mm Hg, control 16.7 mm Hg). Though patients with "moderate" hypertension were better controlled in test practices than in control practices, the patients in test practices visited their doctors less often (test 13.3 visits per patient-year, control 17.4 visits). Among patients with newly detected hypertension test practices achieved a greater reduction in diastolic pressure than control practices (test 15.1 mm Hg v control 11.3 mm Hg) and more sustained control of hypertension (test 323 days per patient-year with a diastolic pressure of 90 mm Hg or less v control 259 days).     

网络化多参数体征监测仪的设计

目的：设计一种基于无线传感网络的多参数体征监测仪,取代传统有线式数据传输,提高便携式心电监测仪的适应能力。方法系统采用Zigbee无线传感技术,对人体心电、血氧饱和度、无创血压等生命体征参数进行动态监测,并通过小波变换对心电监测算法进行改进,提高心电监测的分辨率和精准度。结果实现了各种医疗监测模块的即插即用功能,以及特征监测数据的网络化传输。结论网络化心电检测仪结构简单、精度高、系统功耗低。     

Development and Validation of Assessment Measures for a Newly Developed Physical Examination Simulator

Objective: Define, extract and evaluate potential performance indicators from computer-generated data collected during simulated clinical female pelvic examinations.Design: Qualitative and quantitative study analyzing computer generated simulator data and written clinical assessments collected from medical students who performed physical examinations on three clinically different pelvic simulators.Setting: Introduction to patient care course at a major United States medical school.Participants: Seventy-three pre-clinical medical students performed 219 simulated pelvic examinations and generated 219 written clinical assessments.Measurements: Cronbach’s alpha for the newly defined performance indicators, Pearson’s correlation of performance indicators with scored written clinical assessments of simulator findings.Results: Four novel performance indicators were defined: time to perform a complete examination, number of critical areas touched during the exam, the maximum pressure used, and the frequency at which these areas were touched. The reliability coefficients (alpha) were time = 0.7240, critical areas = 0.6329, maximum pressure = 0.7701, and frequency = 0.5011. Of the four indicators, three correlated positively and significantly with the written clinical assessment scores: critical areas, p < 0.01; frequency, p < 0.05; and maximum pressure, p < 0.05.Conclusion: This study demonstrates a novel method of analyzing raw numerical data generated from a newly developed patient simulator; deriving performance indicators from computer generated simulator data; and assessing validity of those indicators by comparing them with written assessment scores. Results show the new assessment measures provide an objective, reliable, and valid method of assessing students’ physical examination techniques on the pelvic exam simulator.Objective assessment of clinical and technical skills is now possible with simulation and virtual reality technologies.^1,2Virtual reality simulators such as the Minimally Invasive Surgery Trainer-Virtual Reality (MIST-VR), the Mentice Shoulder Arthroscopy Simulator, and the Endoscopic Sinus Surgery (ESS) Simulator have been developed to provide trainees with practice performing surgical procedures and immediate feedback on their performance.^3–6The simulator scoring systems or “internal metrics” capture user performance data and convert this information into scores, using variables such as “time” to complete the task, number of “collisions”, and “path length” to intended target. The emerging field of simulator development raises challenging research questions about the psychometric properties of simulators, including how much and what kind of data to collect as well as how to record and report the scores so they provide useful feedback for students and trainees. Performance data generated from these novel teaching and assessment tools have the potential to revolutionize skills assessments by providing more objective and reliable assessment measures than those most commonly used in medical training today.Development of the E-Pelvis, a novel physical examination simulator, has afforded the opportunity to define and validate assessment measures that have never been used before in evaluating clinicians’ technical skills. The purpose of this research project was to demonstrate concurrent validity of the simulator by comparing computer generated data collected during simulated pelvic exams with students’ written assessments of the clinical findings on three simulators.     

医用数字X线摄影系统性能检测和质量控制研究

目的为解决医用数字X线摄影系统的性能检测和质量控制问题,研究一套切实可行的检测方案。方法采用诊断水平剂量计探测器、非介入kV表的探测器、空间分辨力测试卡、低对比度分辨力模体、衰减模体及数字影像综合测试卡对医用数字X线摄影系统的参数进行测试。结果通过对实验数据进行分析,确定性能指标和检测方案。结论该医用数字X线摄影系统的性能检测方案,可以保证系统的技术性能和影像质量。     

医疗大数据应用SWOT分析

介绍大数据的概念及在医疗领域的应用并进行SWOT分析,其优势在于云计算可实现海量医学数据的存储、数据处理能力强大、基于数据分析的疾病预测具有前瞻性和时效性;劣势在于医学数据收集难度大、数据共享差、整合困难、缺乏复合型人才;挑战是患者隐私、数据缺乏及虚假数据等问题,机遇是有国家政策支持、信息及传感技术发展、医学领域的巨大需求等。     

呼吸力学参数监测系统的设计与实现

目的：设计呼吸力学参数监测系统,实现流量、气道压力两个基本量和潮气量、分钟通气量、呼吸率、峰值压力、峰值流量、气道阻力等十八个推导参数的监测与显示。方法：利用流量传感器将呼吸气流引入到压力传感器,检测到病人气道的流量和压力,把实时采集的这两个信号发送到单片机系统通过预设的算法推导出相关呼吸力学参数,将这些参数发送到上位机或监护仪用于参数和波形的显示。结果：流量同标准流量计的相对误差是8．43％。气道压力同呼吸机测试仪的相对误差是2．5％,都在系统规格设定的范围以内。推导出的呼吸力学参数的最大误差都在允许的5％范围以内。结论：该系统设计方法新颖,监测参数准确,显示波形细腻平滑,满足临床呼吸力学参数监测的功能和应用需要,可以弥补国产监护仪的技术不足。     

审核评估背景下某医学院校计算机化考试现况分析

目的:分析审核评估背景下某医学院校计算机化考试实施现况,为计算机化考试推广应用提供参考.方法:收集分析某医学院校2015-2019年开展计算机化考试相关数据.采用自行设计的问卷对教师和学生进行随机问卷调查,对计算机化考试认知情况进行分析.结果:某医学院校机考率呈增长态势,机考率为10.57％;教师和学生对计算机化考试了...