Healthchain: Secure EMRs Management and Trading in Distributed Healthcare Service System

Healthchain: Secure EMRs Management and Trading in Distributed Healthcare Service System
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Healthchain:分布式医疗服务系统中安全的电子病历管理和交易

DOI:
10.1109/jiot.2020.3038721
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发表时间:
2021-05
影响因子:
10.6
通讯作者:
Ota Kaoru
Ota Kaoru
中科院分区:
计算机科学1区
文献类型:
--
作者:
Li Chaoyang;Dong Mianxiong;Li Jian;Xu Gang;Chen Xiubo;Ota Kaoru

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电子病历是人类健康管理中最关键的数据。与传统的集中式医疗服务系统(HSS)一样,用户隐私安全、EMRS数据泄露、篡改和孤岛是一些重要的问题。然而,区块链是一种很有前途的技术,可以保护隐私,实现跨机构的数据共享,以解决这些问题。本文提出了一种基于联合体区块链技术的新型对等EMRs数据管理和交易系统HealthChain。通过这种分布式系统,患者可以自由地访问不同机构的急诊医生,并且可以方便地在不同的用户之间进行交易。然后,为了平衡电子病历数据的供给和需求,我们建立了一个Stackelberg定价模型来评估电子病历数据提供者和消费者之间的互动。应用逆向归纳法求出最优单价和数据量,并通过实现博弈中的纳什均衡,使参与者的收益最大化。此外,安全性分析表明,健康链可以提供安全的医疗资源管理和交易,仿真结果表明,所提出的定价模型可以帮助健康链实现社会福利最大化。
Electronic medical records (EMRs) are the most critical data in human health management. As in traditional centralized healthcare service systems (HSSs), user privacy security, EMRs data leakage, tampering, and island are some significant problems. However, blockchain is a promising technology to protect the privacy and realize cross-institutional data sharing for solving these problems. In this article, a novel peer-to-peer EMRs data management and trading system called healthchain has been proposed based on consortium blockchain technology. Through this distributed system, the patient can access their EMRs in different institutions freely, and the EMRs can be traded among different users conveniently. Then, to balance EMRs data supply and demand, we establish a Stackelberg pricing model to evaluate EMRs data providers and consumers’ interactions. The optimal unit price and data amounts can be found by applying the backward induction method, and the maximizing benefits of the participants can be obtained by achieving the Nash equilibrium in the proposed game. Moreover, security analysis shows the healthchain can provide secure EMRs management and trading, and the simulation results show that the proposed pricing model can help the healthchain achieve social welfare maximization.
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