Manual Chapter 20, DSP for Medical Devices

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The course also presents specific Physical Therapy instruction in examination, evaluation, patient care program development, intervention, and progression of the cardiovascular and pulmonary patient across settings. Content is correlated to the Cardiovascular and Pulmonary Description of Specialty Practice DSP , thus, participants will also receive instruction on administration, leadership and research. Participants will have 1 week work done on your own time to complete the associated case questions.

Answers will be discussed during an online 1-hour meeting that will be scheduled on dates and times that are mutually agreeable to the participant and the instructor. It is preferred that answers to the questions are typed. The commercial name of device, country of manufacturing, tasks ability, and price are provided for each one.

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In Table 4 , the features and communication mode of these four popular wearable devices are summarized. The purpose of the table is easy comparison of the devices [ 40 , 41 , 42 , 43 ]. Many wearable devices have been implemented to measure critical elements in healthcare monitoring. The majority of these devices are in one lead such as electrocardiogram ECG and electroencephalogram EEG measurement, skin temperature, etc. There have been recent efforts in wearable devices to provide multi-task vital signs measurement. Here, we present the most creative and recent papers in this area.

Many devices, structures, designs, and solutions for remote wearable ECG monitoring, which plays a vital role in health monitoring have been proposed in the literature and industry. Generally, these solution are hard to implement and are not efficient enough in power consumption or performance. Some of them are remarkable but do not have the possibility of merging with other out signals from different systems. To make smart clothing systems intelligent, an infrastructure incorporating smartphones, mobile applications, cloud computing, and big data analytic is required to communicate in the structured design [ 45 ].

Although several research approaches in the field of health monitoring have been proposed and implemented, the existing solutions in different aspects have failed for long-term health monitoring [ 45 ]. Traditional health monitoring, which often collects one or a very limited number of physiological signals, is not very useful for chronic diseases in a full-range health monitoring system.

Sensor deployment on the body is the main difference between old wearable devices and smart clothing [ 45 ]. In smart clothing, all sensors which are used to measure the vital signs are integrated into textile clothing. Sensor placement is a critical point that has to be performed properly. To provide efficiency and a well-formed design, the quality of the used sensors, proper positioning, layout of flexible electricity cable, weak signal acquisition equipment, low-power wireless communications, and user comfort [ 45 ] are crucial factors.

The fabric of the smart clothing to be worn, has to be comfortable. In this design, it has been tried to measure only vital and necessary parameters. Now the used sensors and also the location they are placed on the body are described Figure 2. In Table 5 , the position and task of each deployed sensor in smart clothing is summarized.

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When all sensors are positioned appropriately, each sensor must be wrapped by a flexible covering layer to protect the sensor and to make the device comfortable to be worn by the user. Further textile electrodes touch the user's skin to sense and transmit the data. These electrodes must be sewn on the cloth from the inside. Once the sensors and devices are powered on, they will come into operation. It is possible to wash smart clothing Figure 3. However, it should be noted that some components are not washable and waterproof, but these can be removed easily by the wearer, and reinstallation is straightforward [ 44 ].

In fact, in many cases, it is necessary to customize the smart clothing for the applicant. In addition, technical feasibility, comfort level, and cost effectiveness are serious concerns for the manufacturer. Inter smart-clothing design focuses on the communication problem of interconnecting smart clothing with the outside world.

It is the intermediate level of structure device for the closed-loop system of smart clothing to be connected to cloud. The second use of this level could assist connection to a local medical center. In fact, according to some pre-defined algorithms, data are sent to a medical center, appropriate decisions are taken by medical doctors, physicians, or other healthcare professionals. Thus, cloud computing is integrated in BSC [ 46 ]. There are various technological possibilities for the basis of BSC, such as cloud computing, big data, machine learning, etc. In [ 47 ], a novel approach to medical monitoring was introduced by Sanfilippo and Pettersen.

The methodology is wire-based and many vital signs are measured. This wearable integrated health-monitoring system is based on the e-Health Sensor Platform [ 48 ] V2. However this device is not licensed for medical health monitoring. The system allows researchers to measure and investigate health through body monitoring by using 10 sensors to observe vital signs and perform motion tracking. EEG, ECG, and body temperature measurement are carried out by these sensors, which are connected to the platform.

A push button is considered for emergency cases. Collected data are used in two scenarios. In the first, the user is monitored in real time, and in the second, sensitive data are transmitted to be analyzed for medical diagnosis. In this paper, a wearable health sensor monitoring system based on a multi-sensor fusion approach is outlined.

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The implemented device consists of a chest-worn device that embeds a controller board, an ECG sensor, a temperature sensor, an accelerometer, a vibration motor, a color-changing light-emitting diode LED , and a push-button [ 47 ]. The embedded vibration motor makes it possible to actuate distinctive haptic feedback patterns according to the wearer's health state.

Haptic feedback, informs the wearer about his or her health status in three different states. When it does not vibrate, it indicates a normal state; through low-frequency and high-frequency vibration, abnormal data observation and potential risk are indicated, respectively [ 49 ]. To address privacy concerns, data is encrypted before transmission. Data collected for permanent storage are sent to cloud storage, while data to be visualized in real-time, are sent directly to a laptop or smart phone. The structural framework is based on a multi-sensor fusion approach. In particular, a client-server pattern is adopted in [ 47 ].

A chest-worn device, comprising an Arduino Uno board based on the ATmega micro-controller, an Arduino Wi-Fi Shield, e-Health Sensor Shield, a vibrating motor, and push button, operates as a client and remotely communicates with a server.


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The server is implemented in three levels of logic and communication. The device structure is implemented in three layers Figure 4.


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The bottom and basic layer is Arduino ATmega To enable communication capabilities to this proposed wearable device, an Arduino Wi-Fi Shield [ 50 ] is stacked on top of the adopted controller board, which forms the second layer. In detail, the Arduino Wi-Fi Shield allows the client to communicate with the server by using the The communication between the Arduino Wi-Fi Shield and the Arduino Uno board uses long wirewrap headers that extend through the shield.

The third and top layer is implemented when the wearer's biometric data are gathered, and an e-Health Sensor Shield [ 51 ] is stacked on top of the adopted communication module. Leading wearable devices based on IoT platforms must provide simple, powerful application access to IoT devices. However, there are serious challenges in this way. The following are four key capabilities that leading platforms must enable:.

These steps must be secured; therefore, data encryption is necessary. This is strictly correlated to the number of parameters that are observed, efficient code programming, as well as good data packing, encryption, and compression. This point is more significant when these devices are intended to be worn by elderly users. Therefore, such devices must be easy to wear, easy to carry, and comfortable. These requirements are fulfilled with a light, small, and well-structured device. A wearable device is expected to be small and light weight, and should be able to be used for a long time.

This must be reduced as much as possible to provide safe health monitoring. It may be possible through temporary data saving buffering in the microcontroller providing a large memory. Wearable devices are becoming popular in various fields from sport and fitness to health monitoring. In particular, due to the increasing elderly population throughout the world, wearable devices are becoming important for long-term health monitoring.

The main aim of this work was to give a comprehensive overview of this area of research and to report the full range of tools in area of wearable health monitoring devices. In this review paper, we have reported both research works and commercial devices to study and investigate the currently available technology. In preparing this paper, we studied the literature from various points of view. Based on consultation with expert scientists in environmental engineering and medicine, we believe that, motion trackers, gas detectors, and vital signs are the most important elements in health monitoring; therefore, to achieve the full range of health monitoring, all these parameters were studied.

In each field, a variety of methodologies are employed, but not all are efficient and effective. The most important criteria in this study was the possibility of using the device in the real world, performance, efficiency, and power consumption. In addition, we considered the price of each device.

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Finally, the most challenging bottleneck and some conclusions regarding the promising future in the IoT is presented. Among all implemented works so far, no efficient solution has been proposed for comprehensive monitoring in gas detection, motion tracking, and vital sign monitoring to integrate all these into a single device. It might be possible to realize this in future work by creating a system with following characteristics:.

Moreover, computational models and software development for data encryption and data compression have to be investigated for more efficiency. In the first scenario above, which seems to be the best approach, there are serious restrictions in available sensors. To realize this wearable possibility, appropriate components must be located properly and must function well. In the second scenario, tasks can be dedicated to each node.

For instance, motion tracking sensors can be implemented on one sensor node, and vital sign monitoring can be implemented on another. The third scenario is merging of the first and second methodology, which could widen the range of users and the range of practical application. We would also like to express our gratitude to Professor Norbert Stoll for valuable technical guidance and sharing his knowledge to complete this work. Conflict of Interest: No potential conflict of interest relevant to this article was reported. National Center for Biotechnology Information , U.

Journal List Healthc Inform Res v. Healthc Inform Res. Published online Jan Habil, 1 and Regina Stoll , Dr. Habil 2. Find articles by Mostafa Haghi. Find articles by Kerstin Thurow. Find articles by Regina Stoll. Author information Article notes Copyright and License information Disclaimer. Corresponding author. This article has been cited by other articles in PMC.

Abstract Objectives Wearable devices are currently at the heart of just about every discussion related to the Internet of Things. Methods MIoT is demonstrated through a defined architecture design, including hardware and software dealing with wearable devices, sensors, smart phones, medical application, and medical station analyzers for further diagnosis and data storage.

Results Wearables, with the help of improved technology have been developed greatly and are considered reliable tools for long-term health monitoring systems. Conclusions Wearable devices are now used for a wide range of healthcare observation. Introduction The Internet of Things IoT is a new concept, providing the possibility of healthcare monitoring using wearable devices.

Open in a separate window. Wearable Devices in Health Monitoring In today's world, where time is precious, people, the working class especially, spend most of the day shuttling between various tasks and tend to ignore their health and fitness [ 6 ]. Motion Trackers The measurement of human movement motion tracking has several useful applications in sports, medical, and other branches of studies. Table 2 Comparison of nine commercially available motion tracking devices applied in research.

Accel: accelerometer, GYR: gyroscope, Magnet: magnetometer. Figure 1. A-D Four popular motion tracker wearable devices. E Four popular motion tracker wearable devices wristworn. Table 3 Features of four wearable devices. Table 4 Features and communication modes of four commercial wearable devices.

Vital Signs Measurement Many wearable devices have been implemented to measure critical elements in healthcare monitoring. Figure 2. Table 5 Used sensor position and task in smart cloth. Figure 3.

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Figure 4. The following are four key capabilities that leading platforms must enable: - Simple and secure connectivity: A good IoT platform is expected to provide easy connection of devices and perform device management functions in three levels of data collection, data transmission to a hub, and permanent storage and observation in a medical station. Conclusion Wearable devices are becoming popular in various fields from sport and fitness to health monitoring. Acknowledgments We would also like to express our gratitude to Professor Norbert Stoll for valuable technical guidance and sharing his knowledge to complete this work.

Footnotes Conflict of Interest: No potential conflict of interest relevant to this article was reported. References 1. LeHong H, Velosa A. Fully integrated wearable sensor arrays for multiplexed in situ perspiration analysis. Business Wire. Evans D. Soft microfluidic assemblies of sensors, circuits, and radios for the skin. Swider M. Google Glass review [Internet] [place unknown]: TechRadar; Neubert S. Automation requires process information technologies [Internet] Rostock: Center for Life Science Automation celisca ; c AMON: a wearable multiparameter medical monitoring and alert system.

To G, Mahfouz MR. Neuroprosthetics: from basic research to clinical applications. Berlin: Springer;