Intelligent medical data storage method based on multi-level blockchain system architecture

Abstract

The invention discloses an intelligent medical data storage method based on a multi-level blockchain system architecture. According to the method, an existing single-chain or double-layer blockchain system design is abandoned, a multi-layer blockchain system architecture is provided based on a Hyperledger Fabric platform to solve the storage problem of medical data, efficient management of large-scale medical data is achieved, and the efficiency and expandability of the system are greatly improved. Meanwhile, a dual-key encryption system combining public key encryption and symmetric encryptionis adopted, storage and sharing of medical data are achieved under the condition that privacy of the patient is protected, and great convenience is provided for medical institutions, patients and scientific research institutions.

Description

technical field [0001] The present invention proposes a smart medical data storage method based on a multi-level block chain architecture, which belongs to the field of block chain technology, and particularly relates to technical fields such as data security, trusted storage, and data sharing. Background technique [0002] In the field of medical data, the efficient storage and safe sharing of medical data has always been a difficulty. Patients, doctors, and scientific researchers all have strict restrictions on accessing and sharing medical data. Although the widespread use of centralized electronic medical records (EMR) has brought great convenience to the medical field, with the development of society, centralized electronic medical records have been unable to meet the needs of large-scale medical data storage and sharing. Demand, because the patient's medical data is difficult to interact, poor in operability, difficult to coordinate management, and the shared medical d...

AI Technical Summary

Problems solved by technology

At present, many in-depth researches have been done on the application of blockchain in the medical industry at home and abroad. For example, the MIT Media Lab proposed a MedRec framework based on blockchain, which realizes medical data across medical organizations. The decentralized integration of MedRec and the protection of patient privacy data through smart contracts, but MedRec uses the PoW consensus mechanism, which requires too much computing power to maintain the consistency of the blockchain. Based on this, Xue Tengfei and others use the improved The DPoS consensus mechanism is used to reduce the computing power of the nodes, and a medical blockchain system MDSM is proposed that combines the medical institution alliance server group and the audit alliance server group, which effectively improves the efficiency of data sharing, but there is also a problem of limited data storage capacity. insufficient

[0004] The blockchain medical system involved above, due to the backwardness of the blockchain architecture and the improper selection of the consensus mechanism, the operating efficiency and scalability of the system are not very high, and it cannot meet the needs of the blockchain system in transaction processing. Capabilities, security supervision, and privacy protection needs

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