Study Of Interoperability Framework Of Cardiac Contractility Monitor Oriented To Personal Health Domain

Through the early prevention and monitoring of the disease,the growth of chronic diseases can be effectively controlled.Cardiac reserve is an important aspect of cardiac function.Among the methods of assessing cardiac reserve,cardiac reserve detection methods based on the relationship between cardiac contractility and heart sound are of noninvasive and convenient advantages.With the deepening of the theory and the practice of the method,the medical device of the cardiac contractility monitor has also been applied and developed,whose effectiveness has been verified in the use of many kinds of people.In order to enrich the testing technologies of remote cardiac function,it is necessary to solve the interconnection problem between the existing equipment systems by means of health information technologies,so that the information of heart reserve can be easily shared and managed.In this paper,informatization of cardiac contractility monitor is studied by the combination of the application field and equipment feature.The key indicators of clinical medicine and status information in cardiac monitoring methods are extracted.To study the interoperable characteristics of the cardiac contractility monitor,the ability to exchange data is evaluated by the levels and definition of interoperability in medical information domain.It is found that the applications of the existing cardiac contractility monitor only stay in the technical interoperability level,so the goal of this paper is to construct the framework and models of semantic level interoperabilityIt is showed in this paper that how to build a framework in an abstract,standardized modeling.Object-oriented modeling techniques and graphical representations of unified modeling languages are used as abstract modeling methods.Standardized modeling is primarily based on ITU-T H.810 and ISO / IEEE 11073 series standards.From the domain information model,service model and communication model,static and dynamic information of cardiac contractility monitor is represented.The core construction of interoperability framework is the object creation and attribute expression of the domain information model.Based on the key medical indicators of cardiac reserve detection and the function of cardiac contractility monitor,the design from general device model to specified device model is realized,and the key attributes of instantiated object are demonstrated as well.The interoperability framework of semantic consistency is achieved by nomenclature identification and abstract syntax.In this paper,the state machine of communication model and sequence diagram of service model characterize the dynamic interaction sequence of the static model information.Consequently,the optimal dynamic information model for the equipment operation in the personal health environment is provided.Eventually,based on the information modeling of key heart sound data,such as diastolic and systolic phase duration,S1 and S2 normalized amplitude,cardiac contractility change trend and heart rate,the interoperable function of the above model is realized by programming.From the perspective of software development and testing,the functional module and the client/server application program of cardiac contractility monitor are developed,and the validity of the designed model is verified by various test cases.The implementation results are consistent with the design indicators of the interoperability system of cardiac contractility monitor.