基于区块链的电子病历系统模型的研究

Research on Electronic Medical Record System Model Based on Blockchain

摘要: 本文针对区块链技术的特点研究安全高效的电子病历系统模型以及相关的智能合约。为了保护患者的隐私安全，首先对这些患者的诊疗数据进行脱敏处理，同时针对不同类型的医疗数据采取不同的处理方式，支持多种类型的数据安全存储。为适应P2P网络，引入PBFT共识算法，最后引入MetaMask钱包插件，使用IPFS星际文件系统应用于系统设计之中。本文在模型中将各个医疗机构视为联盟成员，不同医疗机构之间可以相互联系，都需遵循智能合约，通过授权后可共享患者的诊疗数据信息。本文创新性地将患者敏感数据进行脱敏后部署到区块链上，然后针对性设计智能合约，保证患者隐私数据在各机构之间安全存储与共享。

Abstract: According to the characteristics of blockchain technology, this paper studies a safe and efficient electronic medical record system model and related smart contracts. In order to protect the privacy and safety of patients, first desensitize the diagnosis and treatment data of these patients, and adopt different processing methods for different types of medical data to support the safe storage of various types of data. In order to adapt to P2P network, PBFT Consensus algorithm is introduced. Finally, MetaMask wallet plug-in is introduced, and IPFS interstellar file system is used in system design. In this model, each medical institution is regarded as a member of the alliance. Different medical institutions can contact each other, and they all need to follow the smart contract. After authorization, they can share the diagnosis and treatment data information of patients. This paper innovatively desensitizes patient sensitive data and deploys it on the blockchain, and then designs smart contracts to ensure the safe sharing of patient privacy data among institutions.