Modelo arquitetural para geração de alertas aplicado ao monitoramento de pacientes em ambiente hospitalar / Architectural model for generating alerts applied to the monitoring of patients in a hospital environment

O aumento nas demandas por gerenciamento, controle e monitoramento das informações na área da automação hospitalar tem promovido um maior volume de pesquisas que são indutoras do processo de inovação tecnológica na área da saúde. Neste contexto, um aspecto considerado importante na automatização do monitoramento de pacientes consiste na eficiência em detectar e informar em tempo hábil as anomalias encontradas nos sinais vitais dos pacientes. O procedimento de notificar as ocorrências dessas anomalias à equipe médica pode ser implementado por meio da geração e envio de alertas (sonoros ou visuais). Verificando a relevância desse tipo de demanda no ambiente hospitalar, o presente artigo descreve uma arquitetura que tem como fundamento a geração e o envio de alertas, cujos dados são advindos de pacientes internados em Unidades de Terapia Intensiva (UTI). A premissa foi, portanto, otimizar o processo de comunicação das anomalias detectadas de modo que a equipe médica responsável seja notificada de tais eventos de maneira mais eficiente. A arquitetura de comunicação, definida para o ambiente hospitalar, baseou-se em estudos realizados na UTI do Hospital Universitário Onofre Lopes (HUOL). Tais estudos possibilitaram uma análise de requisitos que permitiu definir um gerador de alertas personalizados, e o envio desses para dispositivos móveis das equipes médicas. O processo de envio dos alertas foi baseado em um algoritmo de escalonamento de tempo real, fazendo uso de um middleware e de computação móvel e distribuída, sendo esses os aspectos inovadores dessa arquitetura.

The increase in demand for the management, control and monitoring of information in hospitals has promoted a greater volume of research that induces the process of technological innovation in healthcare. In this context, an important aspect to consider in the automation of patient monitoring is the efficiency to detect and report anomalies in patients’  vital signs in a timely manner. The procedure for notifying the medical staff of these anomalies can be implemented by generating and sending alerts (either audible or visual). Noting the relevance of this demand in the hospital environment, this paper describes an architecture based on the generation and transmission of alerts, whose data are coming from patients hospitalized in intensive care units (ICU). The premise was therefore to optimize the procedure for reporting deficiencies so that the medical staff in charge is notified of such events more efficiently. The communication architecture in hospitals, used in this paper, was based on studies conducted at the ICU of the University Hospital Onofre Lopes (HUOL). These studies allowed an analysis of requirements that lead to the definition of a generator of custom alerts, and the sending of these alerts to mobile devices kept by medical staff. The process of sending those alerts was based on a real time scheduling algorithm making use of a middleware and both mobile and distributed computing, which are the innovative aspects of this architecture.

Personal Privacy Protection of Electronic Medical Record in Health Information System / 대한의료정보학회지

OBJECTIVE: The consolidation of health information has led to the creation of a national network of medical institutions. In this wireless and hard-line communication web, patients' medical information, which is extremely private and must be kept in secret, may leak out, and the risk of dangers such as privacy infringement and misuse of information has increased. METHODS: For this dissertation, a patient information protection algorithm was designed for a hospital information system in order to improve the untraceability and anonymity of patients' individual information in a ubiquitous computing environment. RESULTS: Additionally, analyzing the computing load showed that the computing load of the entire system did not increase, and since 57 percent of the sensor node's computing load was transferred to the secure server, the sensor node's load was minimized. Thus, the system can also be applied to low performance sensor networks. CONCLUSION: In conclusion, improving the security level of identification information transmissions while minimizing the computing and communication load of sensor nodes in a ubiquitous computing environment did not lead to an increase in the system's overall computing or communication load. Thus, a system with improved security features for identification information and communication information was developed and established.

Design and Implementation of RFID Application System for Hospital Information System / 대한의료정보학회지

OBJECTIVE: Hospital information system is evolved toward integration of medical IT(Information Technology) and situation is changing with high speed in the ICT(Information Communication Technology) convergence. RFID/USN(Radio Frequency Identification/Ubiquitous Sensor Network) included IT839 strategy introduced by Ministry of Information and Communication has actively applied to the pilot project and developed elements technologies. RFID is one of the technologies for AIDC(Automatic Identification and Data Capture). It is the core technology to implement automatic processing system. This RFID applications are made of subsystem for patient consultation of delay, automatic reception system by itself. METHODS: This paper implemented RFID server, PDA(Personal Digital Assistant) Client program, tag manager program, user's program. In this paper's RFID server, tag system modified patient tag that allocated patient information database server(tag UID, no, name, password) in instant network. Using RFID 13.56MHz Kit, embodies RFID system that makes possible to search and update the tag of database that makes possible to link with PDA client program in medical information system. RESULTS: This paper provides a comprehensive basic review of RFID model in korea and suggests the evolution direction of further advanced RFID application services. In addition, designed and implemented database server's agent program and client program of PDA application that recognized RFID tag and patient data in the ubiquitous environments. This system implemented hospital information system that performed patient data based medical information database environments, and so reduced delay time of requisition, medical treatment, lab. CONCLUSION: The design of RFID application offers reduction delay time of patient medical treatment, medical institution research management system, so there is a improvement of hospital information system in ubiquitous environment. This papers draw a conclusion, there should have working place with RFID tag related to computational system in patient information system. RFID client program displays patient data and PACS(Picture Archiving and Communication System). Doctor and officers can modify patient's medical data, search data and receipt medical consultation automatically.

Mobile Computing: Technologies and Services / 대한의료정보학회지

Mobile computing environment is leading dynamic changes in our life. While the computer has been developed for complex calculation, it came to our life very closely with the help of wireless communication technologies and with the portability of the terminals. In the mobile computing environment, we can easily get the information from the wireless communication system while in the moving. Based on the wireless network technologies, we make use of applicable services for each mobile user. In this paper, we introduce several technologies supporting the mobile computing environment, and present the services, which are based on those technologies.