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In recent times, technological advancements have resulted in dramatic change in the health sector. The Internet of Things, Cloud Computing, Block chain, lab-on-a-chip, non-invasive and percutaneous operations, and other innovations have made treating a variety of ailments much easier. Both research and the healthcare business have benefited greatly from these emerging innovations. Miniaturized healthcare sensors driven by IoT can be used for clinical tests and self-health tracking. They assist professionals in remote regions who weren't in direct communication with clients with immediate diagnostic and treatment recommendations. Controlling access mechanisms and uneven security policies were a hurdle in meeting the security standards of these data. A blockchain-based intelligent contract and an enterprise-distributed record architecture can be used to track the patient's condition. This permits patients' medical information, and an irreversible and lengthy history log, to be retrieved worldwide at whatever time. The suggested system gives greater monitoring, increased connectivity, and higher data security if compared to standard patient monitoring devices. [ABSTRACT FROM AUTHOR]