The Design And Implementation Of Retrieval Server In Medical Resource Database

With the spread of Hospital Information System, a great deal of medical resource is created during clinical diagnosis. There is a lot of rich knowledge which is contained in untreated medical resource. However, it is difficult to use because the medical resource is stored scattered and disorganised. Therefore, it is the thesis's aim that how to fully utilize, manage effectively and organise the medical resource, realize various kinds of retrieval and assist medical diagnosis, medical teaching and research.Firstly, combined with the demand of actual application and scientific research, this thesis analyses the function and performance of retrieval server from the standpoint of medical resource organization and retrieval. Then, this thesis designs the system's architecture and functional modules with the thoughts of modularity and hierachy to ensure the good extensibility and maintainablity of the system. At last this thesis implements the system's framework and core functional modules, including session manamgent module, resource retireval module, resource downloading module and resource uploading module and so on. At the same time, this thesis puts forward MRAP, a xml-based medical resource access protocol, and implements a highly concurrent server with multi-threads under UNIX environment.The medical resource retrieval server designed and implemented by this thesis not only store and manage medical resources efficiently, makes them easily processed and exchangable, but also designs and implements a extensible and distribution supported framework of retrieval server, makes it possible to develop a distributed medical resource database system. Currently, this system has been run in a cooperative hospital, its validity and practicability is proved.