The Design And Realization Of CCU Information System

Along with the revolution of information technology, computer information technology applied in medical field has become a new margin science of modern iatrology, after years of exploration and development. The digitalization of medical information and great increase of information capacity are promoted along with the abroad use of database technology and information management system in medical institutions, however, which causes the difficult situation that information is excessive to digest, to distinguish verity from fakeness, and various in forms to process. But behind these huge amounts of data, valuable information concerning disease diagnosis and treatment, and sanitation administration decision-making are contained. In order to meet the demand of transforming the data disaster into data treasury, more and more medical institutions are tending to process the huge amount of information by virtue of artificial intelligence technology and digital excavation technology. This paper is divided into five parts:The first part introduces the exploitation background and present situation of the software. At present time, hospitals mainly apply computer information system to management, but seldom employ specialized software aiming at a specific medical subject. Although some hospitals devote much money to purchase some specialized instruments for medical affair, it still cannot satisfy medical stuffs'needs for information collection. Moreover, software exploitationer's misunderstanding towards medical knowledge causes the non-conformance between software and the actual work flow. The software emphasizes particularly on simple information storage and organization, and it lacks specialized calculation and synthesis function, which cannot meet user's demand for data. Furthermore, in order to achieve broader demand, the designer in the early period of software designing has to make a large and complicated system, which keeps the software from broader use.For different fields, the pertinency of software exploitation is different, but office software that is practical and easy to handle, with concise function module and clear pertinency, is mostly needed. From this point of view, we designed this system based on the work flow of brain CDUS and users' suggestions, hoping to enable to establish a relatively simple and practical system for users'convenience.Taking practicability into account, the scale of this system is not big, and its operation is more humanized, rationalized and standardized, which can satisfy the usage and management of users or non-computer-professionals. On the part of data statistic, a guide for data export is added to provide data for users in a mutual way.The second part is a summary of the system, in which the designing thought, the structure of the system and the writer's role and task in the exploitation of this system are introduced. Based on daily work mode and work flow, the needed function module, the operation manner and the structure of this system are conformed. And Microsoft Visual.Net 2005 is used as the instrument for exploit ting the system, which can cooperate perfectly with Microsoft SQL Server 2000 and Windows, and can provides a mature exploiting environment for the exploitationers.The third part is the most important part of this paper, in which the process of the exploitation, the realization of format of database and function module are introduced. Usually, before the exploitation, we will design the functions according to daily work flow, refine the work flow of the system, and make sure basic modules of every operation. Then aiming at the operation flow of modules and table format of relative documents, data structure is established. According to the practical problems come across in the process of program establishment, the data structure is optimized further and function module is constructed. Finally each small modules are organized to form an intact system in accordance with functions of every windows.On defining the format of database, nine databases are established according to the requirement of the system designing, that is, patients information database, functional examination database, interventional treatment database, test examination database, TCD database, Carotid Ultrasonic database, craniocerebral vein database, cranial image database, simple medical history database. Among them, the patients'information database mainly records the patient's personal information, including patient's ultrasonic number, name, age, sex and phone number, etc. Data in other databases are mainly marked by patient's ultrasonic number.On function module, according to the different operations, modules are divided. According to different needs of every windows, the system organizes these modules to form subsystems and every subsystems will form a system. On the operation of database, SQL language is mainly used, including Insert, Select, Update and Delete and some other aggregation functions. In the process of connecting database, the data adapter provided by Microsoft Visual C# is mainly used. By using data adapter, the amount of programmer's code input can be reduced.The fourth part presents life cycle of the software. As the development of a software, the process of state changing, from the advancement of a problem, exploitation, usage, maintenance, mending, to termination and replacement of another software, is called life cycle. The evolvement of software life cycle can be divided into several phases according to certain principles, and phases next to each other are distinguished and related, with the results of the former phase as the foundation. The partition of software life cycle is helpful for software exploitation and management personnel to exploit and manage software according to the specialty of different phases. As for this system, its user's needs are clear, exploitation technology is relatively mature, and users are relatively fixed, therefore, the waterfall model is adopted. This model is suitable for situation that user's needs are clear, exploitation technology is relatively mature and project management is strict. While its flaw is that because of the immobility of task order and long cycle of software development, the error made by the work at the previous phase will be more and more serious, and the price for correcting it is high.The fifth part mainly talks about the deficiencies in the process of the exploitation. Due to the short term, some conceived functions are not realized. Although being tested rigidly, many unpredictable problems will still come forth during the process of using the system, which has to be discovered and solved in the process of using in the future. And also, the updating needs to continue, and the function and operation manner of this system still need improving.