Medical data management system based on double block chains and patient authorized medical record sharing method

A medical data and management system technology, applied in the field of medical record sharing authorized by patients and medical data management system, can solve problems such as single point of failure, lack of monitoring of cloud servers, etc., and achieve the effect of resisting attacks and avoiding the risk of medical disputes

Pending Publication Date: 2021-12-07
ANHUI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

A single point of failure if the cloud ser

Method used

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  • Medical data management system based on double block chains and patient authorized medical record sharing method
  • Medical data management system based on double block chains and patient authorized medical record sharing method
  • Medical data management system based on double block chains and patient authorized medical record sharing method

Examples

Experimental program
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Effect test

Embodiment 1

[0083] figure 1 It is a module interaction block diagram of a dual-blockchain-based medical data management system provided in Embodiment 1 of the present invention, such as figure 1 , 2 As shown, the intelligent medical network system based on block chain includes:

[0084] Healthcare blockchain for:

[0085] Run a hierarchical proof-of-work consensus to generate new blocks;

[0086] Record transactions containing hashes of medical records;

[0087] Custody blockchain for:

[0088] Run a Practical Byzantine Fault Tolerant consensus to order new blocks;

[0089] Record the block hash value of the medical blockchain to prevent data from selfish mining attacks;

[0090] Medical record storage terminal, used for:

[0091] Generate and store medical record data for the medical record access control terminal;

[0092] Hash the original medical record data to get the data summary;

[0093] Write the data summary into the transaction and upload it to the blockchain for depos...

Embodiment 2

[0112] In Embodiment 1, a medical data management system based on dual blockchains is disclosed. For the establishment of the system and the use of the system to realize the patient authorization medical record sharing method based on authenticable key agreement and blockchain, it is necessary to This is achieved through the following methods, such as image 3 As shown, establishing and using the authentication-based key agreement and blockchain-based patient authorization medical record sharing method described in claim 1 or 2 includes:

[0113] S301, initialize the medical data management system;

[0114] S302, generating long-term keys for the medical record storage terminal, the medical record access control terminal and the medical record requesting terminal;

[0115] S303. Generate an authenticated identity symmetric key between the medical record storage terminal and the medical record access control terminal;

[0116] S304, generating a hash value of the medical reco...

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Abstract

The invention discloses a medical data management system based on double block chains and a patient authorized medical record sharing method, and relates to the technical field of authenticated key negotiation algorithms. The medical data management system comprises a medical block chain, a supervision block chain, a medical record storage end, a medical record access control endfor sending medical record access authorization to a medical record request end and calling an intelligent contract to store health records containing medical record keywords, and a medical record request end which is used for acquiring active authorization and requesting data from the medical record storage end when the patient is awake and calling the intelligent contract to search the health record matched with the fingerprint of the patient when the patient is coma so as to request data from the medical record storage end. According to the system and the method, a graded workload proof consensus mechanism is adopted, the speed of generating the new block is changed according to the emergency degree of the transaction, a double-chain structure is used for supervising the data on the chain, and privately mining attacks are effectively resisted.

Description

technical field [0001] The invention relates to the technical field of an authenticable key agreement algorithm and an identity-based digital signature algorithm, in particular to a dual-blockchain-based medical data management system and a patient-authorized medical record sharing method. Background technique [0002] In recent years, electronic health record (EHR, Electronic health record) systems have been widely used around the world, and timely medical data sharing between healthcare systems has shown great promise in reducing healthcare costs, improving medical service quality, and strengthening disease surveillance. benefit. An electronic health record is a collection of digitized patient medical data records, which are generally generated and used by medical institutions to help doctors effectively evaluate a patient's condition and make a correct disease diagnosis. Electronic medical records involve the patient's physical data and are highly private. Therefore, mo...

Claims

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Application Information

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IPC IPC(8): G16H10/60G06F16/22G06F16/27G06F21/60G06F21/62G06F21/64
CPCG16H10/60G06F21/64G06F21/602G06F21/6245G06F16/2255G06F16/27
Inventor 张爱清彭光宇王勇叶新荣吴树陈金豆
Owner ANHUI NORMAL UNIV
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