Medical electronic medical record distributed management system based on blockchain and preparation method thereof

Abstract

The invention discloses a blockchain-based medical electronic medical record distributed management system, and the system comprises a storage and access management module; the storage and access management module comprises an IPFS-based cloud storage system, an access front end communicating with the IPFS cloud storage system, a local encryption storage system which is used for mutual encryption backup of the IPFS cloud storage system and the access front end, and a blockchain network which is used for recording the interaction process of the access front end and the IPFS cloud storage system and managing key node information of the IPFS cloud storage system. According to the medical electronic medical record distributed management system based on the blockchain and the preparation method thereof, local encrypted backup of the medical record can be realized, the encrypted backup is subjected to double encryption through a medical institution and an IPFS management gateway, a private key is stored by a patient himself / herself, and tamper-proof local data backup is realized; the whole medical record access process is recorded, the access authority is set based on the attribute level relation during medical record access, and the data structure on the whole chain is simple.

Description

technical field [0001] The invention relates to a medical electronic medical record management system, in particular to a blockchain-based medical electronic medical record distributed management system and a preparation method thereof, belonging to the technical field of medical electronic medical record management. Background technique [0002] The electronic medical record is the most important medical record of the patient in the hospital diagnosis and treatment process, including the patient's condition, treatment, medication, medical technology, expenses and other records; the ownership of the electronic medical record should belong to the patient, but it is currently stored in the hospital; there are the following problems : Electronic medical records belong to personal privacy data, which are currently monopolized by medical institutions. In terms of data utilization, patients have no right to know, and even privacy leaks occur; data sharing issues, how to let differe...

AI Technical Summary

Problems solved by technology

[0002] The electronic medical record is the most important medical record of the patient in the hospital diagnosis and treatment process, including the patient's condition, treatment, medication, medical technology, expenses and other records; the ownership of the electronic medical record should belong to the patient, but it is currently stored in the hospital; there are the following problems : Electronic medical records belong to personal privacy data, which are currently monopolized by medical institutions. In terms of data utilization, patients have no right to know, and even privacy leaks occur; data sharing issues, how to let different medical institutions share patients’ information safely and legally during diagnosis and treatment Data is currently a difficult problem; how to realize the use of other departments authorized by the patient; the problem of anti-tampering of medical record data; data security issues, that is, the hidden danger of data loss and attack; data storage issues; blockchain uses a decentralized distributed ledger The technology has the advantages of distributed fault tolerance, non-tampering, and privacy protection. It is a technology that solves the current problem of using electronic medical records. It has been used in medical institutions, such as the phrOS system of Taipei Medical University Hospital, the Medicalchain system of Mayo Clinic in the United Kingdom, and the MedRec system in the United States. etc.; another example is the Chinese patent application number: 201810910157.6, which discloses a blockchain-based medical electronic medical record distributed management system and its construction method, which can not only avoid data loss caused by single point failures, reduce system maintenance costs, and It can prevent the patient's diagnosis records from being illegally tampered with when medical disputes occur, but it cannot achieve authority classification for medical record requesters, the data on the chain is complex, and it is impossible to realize the secondary supervision of local medical records

Images