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Medical record storage, sharing and security claim settlement model and method based on a block chain

A medical record and block chain technology, applied in patient medical care, computer security devices, healthcare informatics, etc., can solve the problems of security, reliability and traceability of the electronic medical record management system.

Active Publication Date: 2019-07-12
DALIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these systems still have not properly addressed the security, reliability and traceability of the electronic medical record management system

Method used

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  • Medical record storage, sharing and security claim settlement model and method based on a block chain
  • Medical record storage, sharing and security claim settlement model and method based on a block chain
  • Medical record storage, sharing and security claim settlement model and method based on a block chain

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Embodiment Construction

[0060] The embodiments and effects of the present invention will be described in detail below in conjunction with the drawings and technical solutions.

[0061] In the traditional electronic medical record management system centered on medical institutions, the medical institutions manage the patient's medical data, and patients cannot directly browse and control their own medical data. In addition, patients' medical records are stored in separate medical institutions, making it difficult to share medical data, making the interoperability between medical institutions lower, and also making patients' personal medical information stored in fragmented form, which cannot be constructed for patients. Complete lifetime medical information. Then, the traditional centralized storage of medical data brings huge risks, and incidents such as data loss and hacker attacks emerge in endlessly. Moreover, in extreme cases, when medical disputes occur, data managers in medical institutions ca...

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Abstract

The invention belongs to the technical field of medical data management, and relates to a medical record storage, sharing and security claim settlement model and method based on a block chain. Firstly, credible sharing of medical data of patients among medical institutions is achieved through the blockchain technology, and a lifelong medical record is established for the patients; based on a Hashchain type storage structure, the medical data cannot be tampered; secondly, an improved CP-ABE-based cryptographic primitive SHDPCPC-CP-ABE is proposed, security encryption and fine-grained access control on the medical data are realized, and a patient can conveniently and efficiently access and authorize a medical institution to read the medical data; and finally, a Paillier homomorphic encryption technology is utilized to realize safe medical insurance claim settlement, and the privacy of the patient is protected when the patient interacts with a third-party non-medical institution. According to the invention, security, confidentiality, reliability and integrity of medical data can be realized, and confidential sharing of private data is supported.

Description

technical field [0001] The invention belongs to the technical field of medical data management, and in particular relates to an improved cryptographic primitive based on CP-ABE—semi-policy hiding and attribute encryption (SHDPCPC-CP-ABE) for dynamically changing access policies, external storage IPFS, and improved additive Homomorphic encryption Paillier algorithm and other technologies, specifically a blockchain-based medical record storage, sharing and secure claim settlement model and method, can be used for secure data storage and sharing under blockchain technology and can achieve secure claim settlement. Background technique [0002] In recent years, blockchain technology has emerged and been widely used in financial, medical and other fields. A blockchain is an ever-growing linked list of records that are linked through cryptography. Due to the security of the cryptographic hash function, this structure is very difficult to be tampered with. Generally, the blockchai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/62G16H10/00
CPCG06F21/6254G06F21/6272G16H10/00
Inventor 李凤岐刘克猛张璐鹏
Owner DALIAN UNIV OF TECH
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