Internet of Things (IoT) devices are capable of allowing for far-reaching access to and evaluation of patient data to monitor health and diagnose from a distance. An electronic healthcare system that checks patient data, prepares medicines and provides financial assistance is necessary. Providing safe data transmission, monitoring, decentralization, preserving patient privacy, and maintaining confidentiality are essential to an electronic healthcare system. In this study, we introduce (SCALHEALTH) which is a blockchain-based scheme of the Hyperledger Fabric consortium. In this study, we use authentication to agree on a common key for data encryption to send data confidentially. Also, sending data through IPFS is decentralized. Non-fungible token (NFT) is used to send patient prescriptions to pharmacies and insurance companies to ensure the authenticity of patient prescriptions. As the system's main body, blockchain creates authorization and validation for all devices and institutions. Also, all metadata in the system is recorded on the blockchain to maintain integrity, transparency, and timely data monitoring. The proposed study uses two types of blockchain: a health blockchain and a financial blockchain. The financial blockchain is for financial transactions and is based on Ethereum. The health blockchain also introduces a mechanism that allows several blockchains to be active in parallel, instead of only one blockchain. The prototype of this mechanism is simulated in two scenarios. In comparison to the normal state, the proposed plan has superior results.

翻译：物联网设备能够实现对患者数据的远程访问与评估，从而进行健康监测和远程诊断。一个能够检查患者数据、准备药品并提供财务支持的电子医疗系统不可或缺。确保数据传输安全、可监控性、去中心化、患者隐私保护及机密性对于电子医疗系统至关重要。本研究提出了基于Hyperledger Fabric联盟区块链的SCALHEALTH方案。我们使用认证机制协商通用密钥进行数据加密，以实现数据的机密传输。同时，通过IPFS实现数据的去中心化传输。非同质化代币（NFT）用于将患者处方发送给药房和保险公司，以确好处方的真实性。作为系统主体，区块链为所有设备和机构创建授权与验证。此外，系统中的所有元数据均记录在区块链上，以维护数据的完整性、透明性和实时监控。本研究采用两种区块链：健康区块链和财务区块链。财务区块链基于以太坊处理金融交易。健康区块链则引入了一种机制，允许多条区块链并行运行，而非仅有单一区块链。该机制的原型在两种场景下进行了模拟。与常规状态相比，所提方案表现出更优的效果。