Design And Implementation Of Electronic Health Record System Based On Blockchain

Nowadays,blockchain has become a technological symbol of the milestone in the Internet era,and scholars living in the Internet era have begun to participate in the scientific research cause of this emerging technology.At present,it has become an important trend to break through the difficulties of blockchain-related technologies and the application.At the same time,explore the application of blockchain technology in the field of people’s livelihood.In the fields of medical services,pensions,food safety,and product anti-counterfeiting,blockchain technology has unlimited potential.It requires relevant technical personnel to find problems and explore needs,so Gradually achieve the goal of improving people’s livelihood and providing quality social services.In the past medical systems,the personal health data of patients were mainly stored centrally,and the medical data between most hospitals was relatively closed.The personal health records of patients were generally stored in the database of a single hospital or even in a paper medical account book.The paper ledger is more difficult to distinguish due to various factors;at present,there are only a few that can achieve medical data sharing in multiple hospitals in China,especially on the basis that medical information needs to be verified,saved and synchronized.achieve.In an environment where a complete and reliable medical data access is not established,it is even more difficult for hospitals to access related medical data and synchronize related data.In this process,a lot of medical public resources and related manpower are consumed Only resources can achieve corresponding permission verification and review,and finally achieve medical data synchronization.This makes it very difficult for doctors to obtain relevant medical records,which may lead to delays in treatment time or other more serious problems.In order to improve the efficiency of medical data transfer,a targeted solution is necessary.The research purpose of this system is to design and implement a system through blockchain technology,so as to solve the problem of trust in the process of medical information access,realize the sharing of medical health information,simplify the process of medical information transfer,and enable patients to transfer to hospital more quickly Transfer of medical records,thereby improving the operating efficiency of the entire medical system.In the system,the entire block chain is mainly simulated by Java collection,and the medical record information is encrypted by the SHA256 secure hash algorithm and stored in the block as a string;two digital signatures are added to each block.All blocksIn order to form a chain structure,and to achieve the purpose of simulating the storage of patient medical record information on the blockchain,a blockchain-based electronic health medical record system that can achieve stand-alone operation was finally developed.My main work during this period was to develop a blockchain-based electronic health record system.In the process of building a local system,I studied and used the encryption algorithm of the blockchain,and adopted the SHA256 algorithm.The encryption method of the block chain’s electronic health record system,at the same time,combined with the currently widely used Bootstrap web framework technology,to build an electronic health record system.This article consists of the following seven modules:introduction,introduction of blockchain-related technologies,demand analysis,overall design,detailed design and implementation of system function modules,system testing,and concluding remarks based on blockchain-based electronic health records system.