Node-dynamic-oriented hierarchical electronic medical record storage method and device based on block chain

Abstract

The invention discloses a node-dynamic-oriented hierarchical electronic medical record storage method and device based on a block chain, and the method comprises the steps: reading related data through data consensus processing, data synchronization processing and data propagation processing according to a call request sent by a patient; sending the read related data to a doctor of a correspondingdepartment according to the authorization and a secret key sent by the patient; according to authorization of the patient, allowing the doctor to perform data writing management on the correspondingmedical record; and feeding back the management operation of the doctor on the medical record to a data pool. According to the method, through two verification mechanisms, the real-time correctness ofdata reading and the integrity of a node local database are guaranteed, it can be guaranteed that data in the blockchain is not tampered, and tampering evidences can be traced and left even if the data is modified; besides, the patient can divide the secret key into secret shares and distribute the secret key to relatives and friends or a third-party institution of the patient so as to be ready for record starting when an accident occurs.

Description

technical field [0001] The present invention relates to the field of computer technology, in particular to a node-oriented dynamic layered electronic medical record storage method and device based on blockchain. Background technique [0002] Electronic medical records have been developed for nearly 60 years, and it has been more than 20 years since hospitals in our country began to digitize medical records. Compared with traditional paper medical records, electronic medical records have the advantages of sufficient content, medical record standards and norms, medical record management quality, easy storage and easy access, and conducive to medical record sharing. Electronic medical records and HIS systems complement each other, which can improve medical work efficiency, improve drug safety, and provide data mining for electronic medical records. With the rapid development of big data and machine learning, the current electronic medical records are integrated with EMR, LIS, ...

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the defects of the prior art, the object of the present invention is to provide a layered electronic medical record storage method and device based on block chain-oriented dynamic nodes, which solves the problems in the prior art due to network reasons and possible offline nodes. There may be a situation where most nodes have the same value, and the PBFT algorithm cannot reach a consensus, and the relatively static PBFT algorithm is difficult to apply in this scenario; in addition, although the blockchain can guarantee that the data will not be tampered with, it cannot guarantee that the data will not be tampered. Whether the data is correct at the time, when the data of the local blockchain is changed, it is impossible to perceive the modification of the data in real time, and then read the tampered data when reading, and cannot rely on the tamper resistance of the blockchain to find out in real time Changes and other above-mentioned issues

Images