Stephen Morgan is Professor of Biomedical Engineering at the University of Nottingham. His research involves the development of medical devices with sensing capability. For example, he is currently developing a novel endotracheal tube that can monitor the microcirculation at the cuff/trachea interface and a smart wound dressing for monitoring healing rate and infection. His work has involved close collaboration with industry partners such as Footfalls and Heartbeats (UK), P3 Medical, Surepulse Medical and Moor Instruments. He is a Royal Society Industry Fellow and Director of the Centre for Healthcare Technologies which aims to bring together key stakeholders, capabilities and expertise to support the rapid translation of scientific discoveries into healthcare adoption.
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The wearable/ambulatory FBG interrogator consists of a miniature interrogator (FiSpec FBG X100, FiSens, Rolleiwerke GmbH) and a microcontroller (ESP32 WROOM 32D, Espressif, Shanghai) communicated using UART, then signal information transmitted is parsed in the microcontroller and streamed in a web application via Wi-Fi. The power management of the device uses batteries with a typical cycle life of 300 – 500 (charge, discharge cycles). Using this device, the movement in blood vessels due to pulsatile blood flow synchronous to the cardiac cycle was measured in a human participant. Moreover Pulse Transit Time (PTT) measurements for continuous blood pressure were performed in a cardiovascular phantom.
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