Deployment of Secure Mobile Agents for Medical Information Systems

Changes in global population and demography, and advances in medicine have led to elderly population growth, creating aging societies from which elderly medical care has evolved. In addition, with the elderly susceptible to chronic diseases, this together with the changing lifestyles of young adults have not only pushed up patient numbers of chronic diseases, but also effected into younger patients. These problems have become the major focus for the health care industry. In response to patient demand and the huge shortage of medical resources, we propose remote healthcare medical information systems that combine patient physiological data acquisition equipment with real-time health care analyses. Since remote health care systems are structured around the Internet, in addition to considering the numerous public systems spread across insecure heterogeneous networks, compatibility among heterogeneous networks will also be another concern. To address the aforementioned issues, mobile agents are adopted. With a mobile agent’s characteristics of easy adaptability to heterogeneity and autonomy, the problem of heterogeneous network environments can be tackled. To construct a hierarchical safe access control mechanism for monitoring and control of patient data in order to provide the most appropriate medical treatment, we also propose to use the Chinese Remainder Theorem and discrete logarithm to classify different levels of monitoring staff and hence, to grant permission and access according to their authorized levels. We expect the methods proposed can improve medical care quality and reduce medical resource wastage, while ensuring patient privacy. Finally, security analysis of the system is conducted by simulating a variety of typical attacks, from which it can be concluded that the constructed remote healthcare information system be secure.     

Secure Communication of Medical Information Using Mobile Agents

Recently several efficient schemes are proposed to provide security of e-medicine systems. Almost all of these schemes have tried to achieve the highest security level in transmission of patients' medical information to medical institutions through a heterogeneous network like Internet. In this paper, we explain the insecurity of these schemes against "man-in-the-middle" attack. Furthermore, a dynamic mobile agent system based on hybrid cryptosystem is proposed that is both secure and also efficient in computation cost. Analyzing the security criteria confirms suitability of the proposed scheme for e-medicine systems.     

临床移动信息系统在医疗护理管理中的应用

针对目前临床护理工作模式,探讨了国内医疗护理管理现状。详细阐述了临床移动信息系统的功能及技术优势,通过该系统的应用,能优化现有工作流程,为临床医疗护理管理提供数据基础,减少在护理管理工作过程中的盲目性,提高医院护理管理水平,避免或杜绝由于临床护理环节中的错误而导致的医疗风险。     

A Multiagent Architecture for Developing Medical Information Retrieval Agents

Information that is available on the world wide web (WWW) is already more vast than can be comprehensibly studied by individuals and this quantity is increasing at a staggering pace. The quality of service delivered by physicians is dependent on the availability of current information. The agent paradigm offers a means for enabling physicians to filter information and retrieve only information that is relevant to current patient treatments. As with many specialized domains, agent-based information retrieval in medical domains must satisfy several domain-dependent constraints. A multiple agent architecture is developed and described in detail to efficiently provide agent-based information retrieval from the WWW and other explicit information resources. A simulation of the proposed multiple agent architecture shows a 97% decrease in information overload and an 85% increase in information relevancy over existing meta-search tools (with even larger gains over standard search engines).     

A Medical Application Integrating Remote 3D Visualization Tools to Access Picture Archiving and Communication System on Mobile Devices

With computing capability and display size growing, the mobile device has been used as a tool to help clinicians view patient information and medical images anywhere and anytime. However, for direct interactive 3D visualization, which plays an important role in radiological diagnosis, the mobile device cannot provide a satisfactory quality of experience for radiologists. This paper developed a medical system that can get medical images from the picture archiving and communication system on the mobile device over the wireless network. In the proposed application, the mobile device got patient information and medical images through a proxy server connecting to the PACS server. Meanwhile, the proxy server integrated a range of 3D visualization techniques, including maximum intensity projection, multi-planar reconstruction and direct volume rendering, to providing shape, brightness, depth and location information generated from the original sectional images for radiologists. Furthermore, an algorithm that changes remote render parameters automatically to adapt to the network status was employed to improve the quality of experience. Finally, performance issues regarding the remote 3D visualization of the medical images over the wireless network of the proposed application were also discussed. The results demonstrated that this proposed medical application could provide a smooth interactive experience in the WLAN and 3G networks.     

Robust Anonymous Authentication Scheme for Telecare Medical Information Systems

Patient can obtain sorts of health-care delivery services via Telecare Medical Information Systems (TMIS). Authentication, security, patient’s privacy protection and data confidentiality are important for patient or doctor accessing to Electronic Medical Records (EMR). In 2012, Chen et al. showed that Khan et al.’s dynamic ID-based authentication scheme has some weaknesses and proposed an improved scheme, and they claimed that their scheme is more suitable for TMIS. However, we show that Chen et al.’s scheme also has some weaknesses. In particular, Chen et al.’s scheme does not provide user’s privacy protection and perfect forward secrecy, is vulnerable to off-line password guessing attack and impersonation attack once user’s smart card is compromised. Further, we propose a secure anonymity authentication scheme to overcome their weaknesses even an adversary can know all information stored in smart card.     

医疗器械管理系统在医疗器械合法性控制中的应用

通过医院信息管理系统中的医疗器械管理系统对合法的医用耗材字典的管理和调用,有效避免了人工管理中常见的差错和问题,大幅度提高了工作效率和工作质量,保证了临床使用的医疗用品的安全和有效.     

A Mobile Agent Approach for Secure Integrated Medical Information Systems

Different patient-related information in medical organizations is the primary reference for medical personnel diagnosing, treating, and caring patients. With the rapid development of information technology, paper-based medical records have gradually been changed to electronic forms. However, different medical organizations present individual system specifications and data-saving formats so that the medical information of the same patient cannot be exchanged, shared, and securely accessed. In order not to largely change the present medical information systems as well as not to increase abundant costs, Virtual Integrated Medical-information Systems (VIMS) is proposed to assist various hospitals in information exchange. Furthermore, with Mobile Agent, the dispersed medical information can be securely integrated. It presents confidentiality, non-repudiation, source authentication, and integrity in network transmission. Virtual Integrated Medical-information Systems (VIMS) is a virtual electronic integration system combined with Mobile Agent technology. With the features of independence, adaptability, mobility, objectives, and autonomy, Mobile Agent is applied to overcome the problems from heterogeneous systems. With the features, the over-dispersed medical records can be integrated. Moreover, Mobile Agent can ensure the instantaneity and usability of medical records from which doctors can make the most appropriate evaluation and diagnoses. It will avoid the waste of medical resources, such as repetition medication, as well as become the reference of further consultation or health check. Not only can it improve the medical care quality, but it can be provided for medical research.     

二维码与移动互联网结合改善就诊信息服务的探索

在对二维码及其应用调研的基础上,把矩阵式二维码QR码与移动互联网相结合,探索建立了医院就诊服务信息移动互联网子系统,提供了一种便利、高效、准确、环保的信息化就诊信息访问手段,改善了就诊体验,为进一步研究开发二维码和移动互联网在医院服务和管理工作中的应用奠定了基础.     

Privacy-Preserving and Efficient Truly Three-Factor Authentication Scheme for Telecare Medical Information Systems

Significant development of information technologies has made Telecare Medical Information Systems (TMISs) increasingly popular. In a TMIS, patients upload their medical data through smart devices to obtain a doctor’s diagnosis. However, these smart devices have limited computing and storage capacities, so it is difficult to store substantial patient information and to support time-consuming operations. Moreover, although many three-factor authentication protocols have been proposed for TMISs, the problems of privacy leaks and other security flaws are serious. In addition, authentication factors are verified at the user side in most protocols, giving users a high level of trust and resulting in a potential lack of security. In this paper, we propose a novel efficient truly three-factor authentication protocol for TMISs. In our proposed protocol, three factors (i.e., password, smart card and biometrics) are verified at the server side, which reduces the storage and computational burden of the user side. Additionally, our proposed protocol uses only lightweight operators and is thus efficient. A formal proof analysis demonstrates that our proposed protocol is provably secure in the random oracle model. The performance evaluation shows that the proposed protocol is very efficient and suitable for TMISs.     

基于网络的医学信息资源分布及检索策略

因特网的医学信息资源包括电子期刊、图书信息、报纸、学位论文等。可以进入数据库、网站直接检索，或利用搜索引擎及专业信息资源导航系统获取信息资源。     

医疗设备信息数据集成与应用设计

目的 构建以医疗设备个案信息为内容的主题数据集中间库,实现医疗设备由经验型管理向基于网络数据信息的科学管理转变.方法 分析医疗设备全寿命周期活动;梳理归纳基于HIS的医疗设备业务信息;抽象主题数据集子集及设置数据项;核查数据质量;构建中间库数据结构表等.结果 构建了包括医疗设备基本信息等11个模块为内容的医疗设备主题数据集中间库.满足了各级医疗设备管理者日常管理和重大决策的需求.     

医疗信息集成在移动应用中的设计与实现

从总体架构、功能设计、具体实现等方面阐述基于快速健康互操作资源(FHIR)标准的移动医疗信息集成平台构建,验证其应用效果,指出该系统具有良好的互操作性、可扩展性和灵活性,能够为开展线上医疗服务提供强大数据支撑。     

健全医疗保险制度实现医疗风险合理分担

为了探讨医疗机构、医务人员及患者如何进行有效的医疗风险分担,通过对目前我国医疗风险分担现状的分析,探讨了存在的问题.并针对目前存在的问题,对我国医疗风险分担模式进行了探讨,提出了可行性的对策建议.     

An Efficient and Secure Dynamic ID-based Authentication Scheme for Telecare Medical Information Systems

The rapidly increased availability of always-on broadband telecommunication environments and lower-cost vital signs monitoring devices bring the advantages of telemedicine directly into the patient's home. Hence, the control of access to remote medical servers' resources has become a crucial challenge. A secure authentication scheme between the medical server and remote users is therefore needed to safeguard data integrity, confidentiality and to ensure availability. Recently, many authentication schemes that use low-cost mobile devices have been proposed to meet these requirements. In contrast to previous schemes, Khan et al. proposed a dynamic ID-based remote user authentication scheme that reduces computational complexity and includes features such as a provision for the revocation of lost or stolen smart cards and a time expiry check for the authentication process. However, Khan et al.'s scheme has some security drawbacks. To remedy theses, this study proposes an enhanced authentication scheme that overcomes the weaknesses inherent in Khan et al.'s scheme and demonstrated this scheme is more secure and robust for use in a telecare medical information system.     

巧用Access进行固定资产管理与共享

本文简单介绍利用Access建立起医院固定资产管理系统的方法与应用,实现了医院信息资源共享.     

基于移动P2P的医疗信息平台

基于智能手机终端的医疗信息采集、分发和管理平台具有成本低、操作简单、覆盖面广的优势,利于大型公共医疗信息系统在全国范围的推广。针对目前手机通信网络覆盖在偏远地区的不足、手机网络通信费用对于低收入群体过于昂贵等问题,本文提出不使用商业网络连接,建立一个基于分布式智能移动终端P2P通信框架的低成本医疗信息采集、分发和管理平台,支持多种移动终端系统,并能够在系统中形成一个自组织的医疗信息社交网络。目前该系统的通信平台已用于偏远地区怀孕妇女体检和新生儿疫苗注射等医疗信息的传输及管理,取得良好的社会效益。     

医疗设备应急维修处理方案的应用

本文通过C型臂机及B超诊断仪维修实例说明了医疗设备在维修中灵活处理的重要性,对维修者在工作中转换心路有一定的参考性.     

医院移动临床信息系统的研究及应用

针对我院移动临床信息系统的特点,全面阐述了该系统的逻辑结构、系统架构及系统功能,并对应用该系统前、后的临床医疗流程进行了详细对比.实际应用表明,采用医院移动临床信息系后,使医嘱执行流程、药物执行流程和护理评估流程等都得到了优化,有效地提高了医护人员的工作效率,使医院的管理水平上了一个新的台阶.