Interaction And Interface Design Of Pulse Oximeter

As the ageing population degree is deepened and the sub-health status is widely spread,medical treatments obtain widespread attention from consumers.Recently a virus has risen a global public health emergency,which put forward a new requirement for the fast transformation from traditional clinical medicine to family telemedicine.The advantages of a finger clip pulse oximetry are its miniaturization and convenience,it can monitor patients’ blood oxygen level and pulse rate constantly and will play an important role in intelligent medical treatment system for family.However,the current exploration of oximeters at home and abroad is mostly focused on the development of technology.The research on the interaction interface is obviously insufficient and the user experience is bad.The limitation of oximeter interface size,along with the rapid development of mobile medical technology have prompted researchers to pay attention to mobile medical Apps.There is still no mature design guidance for oximeter App.To solve the problems above,this thesis proposes practical solutions for the oximeter interface from emotional interaction and logical interaction aspects based on the research methods of human-machine interaction interface.It aims to focus on advancing the theory and applications for human-interaction requirements in medical field.In terms of the embedded display screen of the oximeter,data visualization is used as the starting point and interactive emotion is used as the research object for systematic research.First,deletion,organization and hiding.The three principles to simplify the complexity of interface information are summarized based on the information processing theory and graphic code method.Then the user journey map is utilised to analyse the defects of existing oximeter interface in order to find design opportunities.Finally,Kansei engineering is taken as the theoretical guide,combining with semantic differential and principal component analysis.The experiment successfully turns consumers’ subtle emotions into specific design characters and extracts key design factors.Three optimised oximeter interaction and interface designs are finished in the first part.The result shows that the user experience is improved a lot.In terms of the corresponding smartphone App,first the classic interaction theory,such as five elements of user experience and Nielsen’s principles are used to analyse the basic features of the App usage scenario and create key user models.A requirement document is written to transform the acquired user requirements into the specific functions of the mobile end of the oximeter.After combing behaviour logic,three main task interfaces are designed by prototype tools for UX.Then optimizing visual design based on the low-fidelity built in this thesis and providing interfaces of non-core functions.An integrity design from strategy layer to surface layer is put forward.A user interface specification consists of platform,color,and icon is defined,which provides the reference for future digital health products.Finally,the usability of this prototype is evaluated by tests and the result shows that the oximeter App interface has good work performance and user satisfaction.