125例心房颤动的回顾性研究

目的评价心电监测仪在心房颤动中的诊断价值，并进一步研究心房颤动时的心电图特征。方法采用双通道心电监测仪对就诊的患者进行24h的心电图监测，其中心房颤动的共125例，对其进行回顾性分析。结果心房颤动伴长R—R的比例较大，需明确诊断。结论心电监测系统在研究心房颤动的特点时有许多优势，可为进一步明确诊断提供可靠的依据。     

远程无线多生理参数监测与动态心电图在社区中的对比分析

目的 探讨多生理参数分析远程无线心电监测和动态心电图在社区中的应用价值及效价.方法 使用远程无线心电监测检查系统,建立院外社区心脏病监护网络.采用自身对照,328例因心悸、胸闷、头晕、黑朦或晕厥等不适患者的远程心电监测和动态心电图的检出结果.结果 远程心电监测组检出偶发房性早搏、偶发室性早搏及心肌缺血等重要心律失常比动态心电图多(P＜0.05).远程心电监测24h花费100元,包月300元,动态心电图24h花费287元.结论 对发作无规律、间歇发作、持续时间短的心律失常及一过性心肌缺血的检出,远程心电监测价效更好.     

胎儿心电技术在胎儿监护中的研究和应用进展

胎儿心电技术是一种新兴的胎儿监测方法。其通过基于胎儿心电技术的母胎Holter监测仪对孕妇进行持续的非产时和(或)产时胎儿心率监测,其与传统胎儿电子监护相比具有一定优势。该方法可以记录并采集胎儿心电数据,通过仪器直接得到或经过软件计算得到相关胎儿心率量化参数,并且国内外对各项量化参数的特点及其与围生儿不良结局的关系进行了相关研究,并获得一些研究成果。希望借助这种监测方法可以协助医师更准确地判断胎儿宫内情况,进而予以适当干预,降低剖宫产率,促进自然分娩,改善母儿不良预后。     

无线心电监测系统的设计

本文依据心电图机原理设计了一种新型的无线遥测心电监测系统.系统以低功耗单片机MSP430为核心,通过无线发射芯片NRF2401把采集的心电信号发射出去,并由接收端将心电信号传输给PC机以供进一步分析和处理.在实验室环境中测试,达到了设计效果.     

基于C8051F020和PTR2000的无线心电监护系统的设计

介绍一种基于 C8051F020单片机和 PTR2000模块的心电采集和无线传输系统的设计.在单片机的控制下,对心电信号进行实时采集,采集到的心电数据以无线的方式传送到 PC机,由 PC进行处理和显示.该系统能对患者心电进行实时无线监护,允许患者在一定范围内自由活动.     

基于计算机技术的心电监测仪的研制

使用现成的心电采集板(BT007板)和C++Builder计算机编程技术相结合开发心电监测仪,实现了家用计算机上的心电监测功能.目前原型机用于临床试验,经200多试验者使用,反映较好.     

物联网技术在便携式心电监测系统设计中的应用

介绍了采用RFID物联网技术,实现便携式心电监测系统的远程无线数据传输;并应用MATLAB软件,给出了在MATLAB环境中分析心电监测数据的原理和方法,使得心电数据的家庭化分析成为可能。试用表明该系统具有较强的实用性,可以推广应用。     

监护参数的测量方法及进展

多参数苴护仅是目前临床上用于重症志者生命体征监测的主要设备.本文对基本监护参数:心电、呼吸、血压、血氧、体温、心排量和扩展苴护参数:呼吸末CO2、麻醉气体、呼吸力学进行了介绍,并重点阐述了这些参数的测量方法及其相关的发展概况.     

房颤射频消融术后须警惕无症状房颤的存在

美国约翰斯·霍普金斯医院Vasamreddy等,通过无线心电监测系统,对阵发性房颤患者导管消融术后随访发现,无症状房颤发作的次数是有症状房颤的4.5倍.若以无房颤症状作为治疗成功标准则临床成功率为63%～70%;而以无线心电监测中无房颤为标准的完全成功率则下降为50%(J Cardiovasc Electrophysiol 2006,17:134).     

动态心电图和动态血压同步监测在原发性高血压患者中的应用

目的 探讨动态心电图和动态血压同步监测在原发性高血压患者中的临床应用价值.方法 采用美国Meditech公司的Cardio TensⅡ型动态心电/血压监测仪,对120例原发性高血压患者进行24 h同步监测,分析血压与临床症状、心电图之间的关系.结果 原发性高血压患者的血压波动与临床症状、心电图改变相关.结论 动态血压/动态心电图二合一监测仪同步监测有利于分析血压波动与临床症状、心电图改变之间的关系.     

GPRS移动心电监护仪的研制与应用

目的:应用GSM移动通讯网的通用分组无线业务(GPRS)通讯平台,实现心电图信号的远程、无线传送。方法:通过对心电信号采集软硬件的设计,移动发送模块的选择,将心电数据发送到心电监护中心。结果:无线发送前后的心电图数据准确,波形无失真。结论:实现了院外患者心电信号的远程监护和及时诊断。     

一片8Xc196Mc单片机的便携式多参数监护仪的研制

目的　研制一种便携式多参数生命指征监护仪。方法　以一片 8Xc1 96Mc单片机和一个高分辨率 (6 40× 2 0 0 )的液晶显示器 (LCD)为基础 ,采用信号检测和数据处理技术实现心电、血压、呼吸频率、体温 4个生理参数的实时检测和显示。结果　本系统可动态实时显示所采集的心电波形和其它的参数 ,以及所检测参数 2 4h的趋势图 ,并可通过RS2 32接口与PC机之间进行数据传输。结论　该仪器小型轻便 ,使用灵活 ,有较强的抗干扰能力 ,具有很大的应用价值     

Towards Improved Healthcare Performance: Examining Technological Possibilities and Patient Satisfaction with Wireless Body Area Networks

This paper investigates the benefits of using less intrusive wireless technologies for heart monitoring. By replacing well established heart monitoring devices (i.e. Holter) with wireless ECG based Body Area Networks (BAN), improved healthcare performance can be achieved, reflected in (1) high quality ECG recordings during physical activities and (2) increased patient satisfaction. A small scale clinical trial was conducted to compare both technologies and the results illustrate that the wireless ECG monitor was able to detect ECG signals intended for arrhythmia diagnostics. Furthermore, from a patient’s perspective, both technologies were evaluated using three dimensions, namely; hygienic aspects, physical activity, and skin reactions. Results demonstrate that the wireless ECG BAN showed better performance, especially regarding the hygienic aspects. It was also favourable for use during physical activities, and the signal quality of the wireless sensor system demonstrated good performance regarding signal noise and artefact disturbances. This paper concludes that wireless cardiac monitoring systems have significant benefits from a patient’s perspective, and further clinical trials should be conducted to further evaluate the new ECG based BAN system, to identify the possibility of widespread adoption and utilisation of wireless technology for arrhythmia diagnostics.     

基于ZigBee技术的远程医疗监护系统

介绍ZigBee技术特点,提出构建基于ZigBee技术的嵌入式远程医疗监护系统,阐述系统功能、结构、关键技术实现,包括无线定位、无线数据传输、生命体征传感器设计,测试生命体征实时监控效果,指出该系统有助于优化医务工作者采集数据的过程以及患者就医流程。     

我院多参数监护仪故障统计分析

目的通过总结日常维修的监护仪的故障和解决方法,结合我院实际情况制定监护仪质量控制计划,推动我院监护仪的质量控制工作的进展。方法依据国内标准GB9706.1-2007《医用电气设备》和国家计量检定规程JJG760-2003《心电监护仪检定规程》,采用FLUKE生命体征模拟器ProSim 8,对监护仪的各项性能指标进行检测。结果在检测的50台监护仪中,86%的监护仪不合格归因于附件如血压袖带、血氧饱和度探头、心电导联线等的损坏。14%的监护仪不合格归因于血压气泵损坏、血压模块电路板损坏、电源板损坏、按键板、显示屏损坏等的主机内部损坏。结论通过总结我院监护仪不合格的原因,为我院质量控制工作的改进提供了一定的依据。     

Monitoring of Physiological Parameters from Multiple Patients Using Wireless Sensor Network

This paper presents a wireless sensor network system that has the capability to monitor physiological parameters from multiple patient bodies. The system uses the Medical Implant Communication Service band between the sensor nodes and a remote central control unit (CCU) that behaves as a base station. The CCU communicates with another network standard (the internet or a mobile network) for a long distance data transfer. The proposed system offers mobility to patients and flexibility to medical staff to obtain patient’s physiological data on demand basis via Internet. A prototype sensor network including hardware, firmware and software designs has been implemented and tested. The developed system has been optimized for power consumption by having the nodes sleep when there is no communication via a bidirectional communication.     

A Privacy Preservation Secure Cross Layer Protocol Design for IoT Based Wireless Body Area Networks Using ECDSA Framework

Internet of Things (IoT) provides the collection of devices in different applications in which Wireless Body Area Network (WBAN) is placed an crucial role. The WBAN is a wireless sensor network consisting of sensor nodes that is collected from IoT which is implanted in the human body to remotely monitor the patient’s physiological signals without affecting their routine work. During emergency situations or life-threatening situations there is a need for a better performance to deliver the actual data with an efficient transmission and there is still a challenge in efficient remote monitoring. So, in this paper an application for cross layer protocol design architecture of Elliptic Curve Digital Signature Algorithm (ECDSA) has been proposed. It replaces the protocol architecture of WBAN (IEEE 802.15.6), WMAN (IEEE 802.16), and 3G, WLAN (IEEE 802.11) or wired networks. The lightweight secure system provides secure data transmission and access control mechanisms by using ECDA-based proxy signature algorithm. The efficiency of the system is implemented using simulation models that were developed using NS-2, and the results obtained shows an optimum solution in terms of delay, PDR, throughput, jitter, packet transmission time, dropping ratio and packet delivery. The viability of the methodology proposed is illustrated by the response.     

Network Coded Cooperative Communication in a Real-Time Wireless Hospital Sensor Network

The paper presents a network coded cooperative communication (NC-CC) enabled wireless hospital sensor network architecture for monitoring health as well as postural activities of a patient. A wearable device, referred as a smartband is interfaced with pulse rate, body temperature sensors and an accelerometer along with wireless protocol services, such as Bluetooth and Radio-Frequency transceiver and Wi-Fi. The energy efficiency of wearable device is improved by embedding a linear acceleration based transmission duty cycling algorithm (NC-DRDC). The real-time demonstration is carried-out in a hospital environment to evaluate the performance characteristics, such as power spectral density, energy consumption, signal to noise ratio, packet delivery ratio and transmission offset. The resource sharing and energy efficiency features of network coding technique are improved by proposing an algorithm referred as network coding based dynamic retransmit/rebroadcast decision control (LA-TDC). From the experimental results, it is observed that the proposed LA-TDC algorithm reduces network traffic and end-to-end delay by an average of 27.8% and 21.6%, respectively than traditional network coded wireless transmission. The wireless architecture is deployed in a hospital environment and results are then successfully validated.     

Wireless Transmission of ECG signal

In this study, the ECG signal were measured as noiseless with Ag/AgCl electrodes, then converted digital data using pulse code modulation (PCM) technique. The digital data were then sent to receiver where it is in 433 MHz FM/FSK transmitter, which has 10 mW output power and 9.6 Kps transmission speed. At the receiver, the digital data were reconverted to analog signal to monitor and record on the PC with Sonic Foundry Sound Forge 6.0 program. The power spectrum of measured ECG signal was formed using Matlab program. As a result, the medical supporting system is realized for monitoring the ECG signal on PC of human with chronic heart disease in their living surroundings.     

无线网络与医疗相关SCI论文主题词聚类分析

对Web of Science ^TM核心合集数据库中无线网络与医疗相关的SCI论文进行文献计量学分析,统计高频主题词在同一文献中的出现频率并生成共现矩阵,使用SPSS对矩阵进行聚类分析,获得该领域近年来5个研究热点,包括无线传感器技术、数据传输系统、医学无线网络与医疗健康服务、网络通讯、网络系统安全等。