Design and Analysis on Improving Reliability of Hospital Information System / 医疗卫生装备

Objective To discuss how to improve the stability,reliability and security of the core servers of hospital information system.Methods Flaws on security were analyzed objectively in hospital server system adopting 'PC server & local hardisk' scheme.New schemes were put forward including both hot standby scheme based on concentrated storage and full redundancy scheme based on'minicomputer & diskette array'.Results It is proved that the full redundancy scheme is reasonable in theory,and usable in practice.Conclusion The mode of'minicomputer & diskette array' can effectively enhance the stability,reliability and safety of core servers.

Implementation of An Electronic Prescription Transfer System Using by IC Card / 대한의료정보학회지

A prescription issuing system is computerized in so many hospital. While the shareable and usability of an electronic prescription is increased by computerized materials, it can be serious for an information about a patient to be exposed in public. In this paper, the proposed system to issue an electronic prescription is aimed to keep using the existing paper-based prescription issuing system and extend the system using by IC card. It is developed for the secure method of an electronic prescription to transfer between hospital and pharmacy. For this, in this paper, it is defined for the standard minimal data set of a prescription information and developed the method to store the electronic prescription to IC card. It is set the access authority to access the electronic prescription stored in IC card by classifying the access authority group. Since the security and certificate authority center is established using Windows 2000, the electronic prescription stored in IC card can be secured and certificated by an encryption, decryption and digital signature. Lastly, the terminal and server system transferred an electronic prescription of a hospital and a pharmacy is implemented. The proposed system in this paper is simulated in some hospital and pharmacy. On the result of simulation, it is hoped for increasing the prescription transferring service, because the proposed transfer system of an electronic prescription using IC card is stable, secure, available, and creditable.

Design on High-Reliability Key Hospital Database Server System of "No.1 Millitary Medical Project" / 医疗卫生装备

Objective To improve the reliability of the core database system by ameliorating the scheme of the server system architecture. Methods Combined with practice of the hospital informatization, the security and potential hole of the database server system were analyzed and evaluated. Results Aimed to deal with the security hidden-trouble, a mini-server was adopted instead of PC server, while SAN(Storage Area Network) was utilized instead of RAID-5, and mirror copy technique was used to implement the real-time hot copy of the data. Conclusion Consequently the reliability of the system has been greatly improved.