Low-Cost Joystick for Pediatric Respiratory Exercises
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PATIENT FACING SYSTEMS
Low-Cost Joystick for Pediatric Respiratory Exercises Andre´ Sanches Fonseca Sobrinho1
´ Scalassara1 · Paulo Rogerio
· Mar´ıa Eugenia Dajer1
Received: 1 July 2020 / Accepted: 28 August 2020 / Published online: 14 September 2020 © Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract The use of body signals for health care applications has become ubiquitous in the last decade. One utilization of such measurements is the monitoring of respiratory flow for physiotherapy assistance. This application is based on relative flow measures which can rely on inexpensive sensors. Based on that, we present a low-cost electronic device that detects blows and suctions with a pressure sensor and emulates a keyboard for interfacing with computers. This joystick allows children to control free internet games by associating blows and suctions with different intensities to keyboard actions. Also, the intensity can be calibrated according to the user’s pulmonary capacities. This feature is adequate for gradual respiratory physiotherapy and can be customized for each patient. In order to verify the operation of the proposed device, practical tests were performed with three online free games, where the joystick functionality was assessed with different therapeutic configurations. Keywords Respiratory exercises · Pediatric patients · Embedded systems · Pressure sensor
Introduction The acquisition of body signals for personalized health care assistance is a trend nowadays [50], especially using mobile technologies [21]. The use of wearables and the internet of things is widespread in researches and system design, the focus is on more efficient and accessible care even in remote locations [27]. This is specially true in the case of pandemics, such as COVID-19 [7]. Amongst all the applications of these signals, the acquisition of respiratory flow is less used in monitoring devices because the most common sensors are still too invasive [26]. Due to that, several researches aim at presenting new methods and alternative sensors for respiratory applications This article belongs to the Topical Collection: Patient Facing Systems Paulo Rog´erio Scalassara
[email protected] Andr´e Sanches Fonseca Sobrinho [email protected] Mar´ıa Eugenia Dajer [email protected] 1
Department of Electrical Engineering, Federal University of Technology - Paran´a, Corn´elio Proc´opio, Brazil
in order to assess the health conditions of patients. Examples include a device composed of a pressure sensor array for obtaining respiratory information of people in bed [41] and an alternative respiratory monitoring device that is based on video processing [26]. Such systems are not movable since they need large devices for acquisition and processing of the collected signals. Another example is a more portable system equipped with pressure and pyroelectric sensors designed to monitor respiratory conditions, such as flow and CO2 concentration [48]. However, some applications do not require the exact estimat
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