Developed wearable miniature sensor to diagnose initial perturbations of cardiorespiratory system

• Main Authors: Reza Abbasi-Kesbi, Alireza Nikfarjam, Ardalan Akhavan Hezaveh
• Format: Article
• Language: English
• Published: Wiley 2018-11-01
• Series: Healthcare Technology Letters
• Subjects: patient monitoring; cardiovascular system; electrocardiography; pneumodynamics; bioMEMS; microsensors; biomedical equipment; microfabrication; patient diagnosis; biomedical systems; miniature wireless sensor; respiration rate; cardiorespiratory system; electrocardiogram sensor; belt sensor; cardiovascular system problems; initial perturbations; microelectromechanical systems; miniature motion sensors; heartbeat; wearable miniature sensor; chest movements; gold standard; root-mean-square errors; standard deviation; in-home health monitoring
• Online Access: https://digital-library.theiet.org/content/journals/10.1049/htl.2018.5027

The progress of microelectromechanical systems tends to fabricate miniature motion sensors that can be used for various purposes of biomedical systems, particularly on-body applications. A miniature wireless sensor is developed that not only monitors heartbeat and respiration rate based on chest movements but also identifies initial problems in the cardiorespiratory system, presenting a healthy measure defined based on height and length of the normal distribution of respiration rate and heartbeat. The obtained results of various tests are compared with two commercial sensors consisting of electrocardiogram sensor as well as belt sensor of respiration rate as a reference (gold standard), showing that the root-mean-square errors obtain <2.27 beats/min for a heartbeat and 0.93 breaths/min for respiration rate. In addition, the standard deviation of the errors reaches <1.26 and 0.63 for heartbeat and respiration rates, separately. According to the outcome results, the sensor can be considered an appropriate candidate for in-home health monitoring, particularly early detection of cardiovascular system problems.