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https://www.readbyqxmd.com/read/28227961/balancing-accuracy-delay-and-battery-autonomy-for-pervasive-seizure-detection
#1
Athanasios Karapatis, Robert M Seepers, Marijn van Dongen, Wouter A Serdijn, Christos Strydis, Athanasios Karapatis, Robert M Seepers, Marijn van Dongen, Wouter A Serdijn, Christos Strydis, Athanasios Karapatis, Wouter A Serdijn, Robert M Seepers, Christos Strydis, Marijn van Dongen
A promising alternative for treating absence seizures has emerged through closed-loop neurostimulation, which utilizes a wearable or implantable device to detect and subsequently suppress epileptic seizures. Such devices should detect seizures fast and with high accuracy, while respecting the strict energy budget on which they operate. Previous work has overlooked one or more of these requirements, resulting in solutions which are not suitable for continuous closed-loop stimulation. In this paper, we perform an in-depth design space exploration of a novel seizure-detection algorithm, which uses a complex Morlet wavelet filter and a static thresholding mechanism to detect absence seizures...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227879/wearable-diagnostic-system-for-age-related-macular-degeneration
#2
N Mohaghegh, E Ghafar Zadeh, S Magierowski, N Mohaghegh, E Ghafar Zadeh, S Magierowski, N Mohaghegh, E Ghafar Zadeh, S Magierowski
This paper presents a novel head-mounted point-of-care diagnostic system for detection and continuous monitoring of Age-related Macular Degeneration (AMD). This wearable embedded open-source platform enables accurate monitoring of AMD by taking advantage of multiple standard graphical interface techniques such as Amsler Grid, Threshold Amsler Grid, Macular Computerized Psychophysical Test and Preferential Hyperacuity Perimeter (PHP). Here, we describe the proposed multi-Grid or so-called NGRID software and elaborate on the hardware prototype...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227877/a-wearable-computing-platform-for-developing-cloud-based-machine-learning-models-for-health-monitoring-applications
#3
Shyamal Patel, Ryan S McGinnis, Ikaro Silva, Steve DiCristofaro, Nikhil Mahadevan, Elise Jortberg, Jaime Franco, Albert Martin, Joseph Lust, Milan Raj, Bryan McGrane, Paolo DePetrillo, A J Aranyosi, Melissa Ceruolo, Jesus Pindado, Roozbeh Ghaffari, Shyamal Patel, Ryan S McGinnis, Ikaro Silva, Steve DiCristofaro, Nikhil Mahadevan, Elise Jortberg, Jaime Franco, Albert Martin, Joseph Lust, Milan Raj, Bryan McGrane, Paolo DePetrillo, A J Aranyosi, Melissa Ceruolo, Jesus Pindado, Roozbeh Ghaffari
Wearable sensors have the potential to enable clinical-grade ambulatory health monitoring outside the clinic. Technological advances have enabled development of devices that can measure vital signs with great precision and significant progress has been made towards extracting clinically meaningful information from these devices in research studies. However, translating measurement accuracies achieved in the controlled settings such as the lab and clinic to unconstrained environments such as the home remains a challenge...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227838/alleviating-freezing-of-gait-using-phase-dependent-tactile-biofeedback
#4
Will Harrington, Andrew Greenberg, Edward King, James McNames, Lars Holmstrom, Fay B Horak, Martina Mancini, Will Harrington, Andrew Greenberg, Edward King, James McNames, Lars Holmstrom, Fay B Horak, Martina Mancini, Edward King, Lars Holmstrom, Martina Mancini, James McNames, Fay B Horak, Will Harrington, Andrew Greenberg
In this feasibility study, we present a novel, wearable prototype of tactile biofeedback to alleviate gait disturbances, such as freezing of gait in Parkinson's disease. We designed and tested a phase-dependent tactile biofeedback system that can be easily worn on the feet, with a simple switch to turn it on or off. Preliminary validation was performed in 8 subjects with Parkinson's disease who show freezing during a turning in place test. A metronome, control condition was used to compare effectiveness in alleviating freezing...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227834/development-of-semi-chronic-microdrive-system-for-large-scale-circuit-mapping-in-macaque-mesolimbic-and-basal-ganglia-systems
#5
Shaoyu Qiao, Kevin A Brown, Amy L Orsborn, Breonna Ferrentino, Bijan Pesaran, Shaoyu Qiao, Kevin A Brown, Amy L Orsborn, Breonna Ferrentino, Bijan Pesaran, Shaoyu Qiao, Amy L Orsborn, Breonna Ferrentino, Kevin A Brown, Bijan Pesaran
The development of novel neurotechnologies for treating refractory neuropsychiatry disorders depends on understanding and manipulating the dynamics of neural circuits across large-scale brain networks. The mesolimbic pathway plays an essential role in reward processing and mood regulation and disorders of this pathway underlie many neuropsychiatric disorders. Here, we present the design of a customized semi-chronic microdrive array that precisely targets the anatomical structures of non-human primate (NHP) mesolimbic and basal ganglia systems...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227827/a-novel-tool-and-procedure-for-in-situ-volumetric-calibration-of-motion-capture-systems-for-breathing-analysis
#6
C Massaroni, E Schena, P Saccomandi, S Silvestri, C Massaroni, E Schena, P Saccomandi, S Silvestri, C Massaroni, P Saccomandi, E Schena, S Silvestri
Optical motion capture systems are widely used in biomechanics although have not been significantly explored for measuring volumes and volume variations yet. The aim of this study was to propose and test a completely novel procedure for the calibration of motion capture systems for the breathing analysis in terms of volume measurements, by the use of a tool consisting in an ad-hoc designed in-situ calibration device (CD) and two algorithms for calibration. Both the calibration tool and the calibration procedure performed in the range 0-2780mL on an Optoelectronic Plethysmography (OEP) system are presented...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227817/polyimide-based-magnetic-microactuators-for-biofouling-removal
#7
Qi Yang, Tran Nguyen, Chunan Liu, Jacob Miller, Jeffrey F Rhoads, Jacqueline Linnes, Hyowon Lee, Qi Yang, Tran Nguyen, Chunan Liu, Jacob Miller, Jeffrey F Rhoads, Jacqueline Linnes, Hyowon Lee, Jacqueline Linnes, Chunan Liu, Tran Nguyen, Jacob Miller, Jeffrey F Rhoads, Hyowon Lee, Qi Yang
Here we report on the development of novel polyimide-based flexible magnetic actuators for improving hydrocephalus shunts. The static and dynamic mechanical responses of the thin-film magnetic microdevices were quantitatively measured. The bacteria-removing capabilities of the microfabricated devices were also evaluated. Although additional evaluations are necessary, the preliminary results show promising potential for combatting bacteria-induced biofouling. Lastly, the thin-film microdevices are integrated into a single-pore silicone catheter to demonstrate a proof-of-concept, MEMS-enabled self-clearing, smart catheter...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227815/lab-on-chips-for-manipulation-of-small-scale-organisms-to-facilitate-imaging-of-neurons-and-organs
#8
Ramtin Ardeshiri, Pouya Rezai, Ramtin Ardeshiri, Pouya Rezai, Ramtin Ardeshiri, Pouya Rezai
Caenorhabditis elegans (C. elegans) and Drosophila melanogaster (D. melanogaster) are widely-used model organisms for neurological and cardiac studies due to their simple neuronal (302 neurons in C. elegans) and cardiac (simple tubular organ in D. melanogaster) systems. However, their small sizes and continuous mobility impede their precise and timely manipulation, hence, limiting the assays that can be done using conventional manual methods. This has resulted in a need for technologies that allow multidirectional manipulation of model organisms to enable studies on target neurons and organs throughout the body...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227686/novel-modular-2-dof-microsurgical-forceps-for-transoral-laser-microsurgeries-ergonomic-design-and-preliminary-evaluation
#9
Manish Chauhan, Giacinto Barresi, Nikhil Deshpande, Darwin G Caldwell, Leonardo S Mattos, Manish Chauhan, Giacinto Barresi, Nikhil Deshpande, Darwin G Caldwell, Leonardo S Mattos, Darwin G Caldwell, Giacinto Barresi, Leonardo S Mattos, Nikhil Deshpande, Manish Chauhan
Transoral Laser Microsurgeries (TLM) demand a great level of control and precision in intraoperative tissue manipulation. The optimal eradication of the diseased tissue is possible only with coordinated control of the laser aiming for incision and the microsurgical tools for orienting and stretching the tissue. However, the traditional microsurgical tools are long, single purpose, one degree-of-freedom (DOF), rigid tools with small range of motion and a normal grasping handle inducing non-ergonomic usage. This paper presents a novel, modular microsurgical tool to overcome the challenges of the traditional tools and improve the surgeon-tool usage experience...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227672/robot-assisted-microsurgical-forceps-with-haptic-feedback-for-transoral-laser-microsurgery
#10
Nikhil Deshpande, Manish Chauhan, Claudio Pacchierotti, Domenico Prattichizzo, Darwin G Caldwell, Leonardo S Mattos, Nikhil Deshpande, Manish Chauhan, Claudio Pacchierotti, Domenico Prattichizzo, Darwin G Caldwell, Leonardo S Mattos, Darwin G Caldwell, Leonardo S Mattos, Nikhil Deshpande, Domenico Prattichizzo, Manish Chauhan, Claudio Pacchierotti
In this paper, a novel, motorized, multi-degrees-of-freedom (DoF), microsurgical forceps tool is presented, which is based on a master-slave teleoperation architecture. The slave device is a 7-DoF manipulator with: (i) 6-DoF positioning and orientation, (ii) 1 open/close gripper DoF; and (iii) an integrated force/torque sensor for tissue grip-force measurement. The master device is a 7-DoF haptic interface which teleoperates the slave device, and provides haptic feedback in its gripper interface. The combination of the device and the surgeon interface replaces the manual, hand-held device providing easy-to-use and ergonomic tissue control, simplifying the surgical tasks...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227654/preliminary-results-for-an-adaptive-pattern-recognition-system-for-novel-users-using-a-powered-lower-limb-prosthesis
#11
John A Spanias, Ann M Simon, Eric J Perreault, Levi J Hargrove, John A Spanias, Ann M Simon, Eric J Perreault, Levi J Hargrove, Eric J Perreault, John A Spanias, Ann M Simon, Levi J Hargrove
Powered prosthetic legs are capable of improving the gait of lower limb amputees. Pattern recognition systems for these devices allow amputees to transition between different locomotion modes in a way that is seamless and transparent to the user. However, the potential of these systems is diminished because they require large amounts of training data that is burdensome to collect. To reduce the effort required to acquire these data, we developed an adaptive pattern recognition system that automatically learns from subject-specific data as the user is ambulating...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227644/evaluation-of-a-wrist-orthosis-on-lofstrand-crutch-assisted-gait
#12
Deen Farooq, Omid Jahanian, Brooke A Slavens, Elizabeth T Hsiao-Wecksler, Deen Farooq, Omid Jahanian, Brooke A Slavens, Elizabeth T Hsiao-Wecksler
Lofstrand, or forearm, crutches are a common assistive mobility device for those with functional impairments. However, repeated loading of the wrist and palmar region and continual hyperextension of the wrist during Lofstrand crutch usage may cause wrist strain, pain, and secondary injuries such as carpal tunnel syndrome. In order to reduce risk of injury, a novel wrist orthosis was developed with the intent of improving wrist posture and reducing/redirecting palmar loads from the carpal tunnel region to the adductor pollicis area...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227642/building-blocks-system-for-a-prosthesis-training-of-a-child-with-congenital-amputee
#13
Tomoya Shimokakimoto, Tomoyuki Ueno, Nanao Akimichi, Kenji Suzuki, Tomoya Shimokakimoto, Tomoyuki Ueno, Nanao Akimichi, Kenji Suzuki, Kenji Suzuki, Tomoya Shimokakimoto, Tomoyuki Ueno, Nanao Akimichi
Our objective is to provide a novel habilitation experience using play to children with special needs, in particular to those with congenital defects of the upper limbs. Our concept is a device-assisted motivational training session using tangible building block devices. In order to verify the feasibility of our concept with used bioToys in a clinical training session with occupational therapists. Our participant was a one-year-old girl with congenital amputation of the right upper limb. We verified that bioToys could be used in clinical training for a prosthesis, and could assist with both playful training and quantitative therapeutic evaluation...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227627/computation-offloading-for-real-time-health-monitoring-devices
#14
Haik Kalantarian, Costas Sideris, Tuan Le, Anahita Hosseini, Majid Sarrafzadeh, Haik Kalantarian, Costas Sideris, Tuan Le, Anahita Hosseini, Majid Sarrafzadeh, Costas Sideris, Majid Sarrafzadeh, Anahita Hosseini, Tuan Le, Haik Kalantarian
Among the major challenges in the development of real-time wearable health monitoring systems is to optimize battery life. One of the major techniques with which this objective can be achieved is computation offloading, in which portions of computation can be partitioned between the device and other resources such as a server or cloud. In this paper, we describe a novel dynamic computation offloading scheme for real-time wearable health monitoring devices that adjusts the partitioning of data between the wearable device and mobile application as a function of desired classification accuracy...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227626/design-and-prototyping-of-a-wristband-type-wireless-photoplethysmographic-device-for-heart-rate-variability-signal-analysis
#15
M Ghamari, C Soltanpur, S Cabrera, R Romero, R Martinek, H Nazeran, M Ghamari, C Soltanpur, S Cabrera, R Romero, R Martinek, H Nazeran, R Martinek, R Romero, C Soltanpur, S Cabrera, M Ghamari
Heart Rate Variability (HRV) signal analysis provides a quantitative marker of the Autonomic Nervous System (ANS) function. A wristband-type wireless photoplethysmographic (PPG) device was custom-designed to collect and analyze the arterial pulse in the wrist. The proposed device is comprised of an optical sensor to monitor arterial pulse, a signal conditioning unit to filter and amplify the analog PPG signal, a microcontroller to digitize the analog PPG signal, and a Bluetooth module to transfer the data to a smart device...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227616/contactless-on-bed-activity-sensing-using-first-reflection-echolocation
#16
Henry Griffith, Yan Shi, Subir Biswas, Henry Griffith, Yan Shi, Subir Biswas, Henry Griffith, Subir Biswas, Yan Shi
A novel system capable of detecting on-bed activity during sleep using first-reflection ultrasonic echolocation is described herein. As is employed in many existing solutions, such activity detection may be utilized in the assessment of sleep quality. Compared to current approaches using either wearable devices or sensors collocated on the surface of the bed, the proposed architecture greatly enhances convenience for the end-user by providing minimal disruptions to his or her standard sleep routine. A series of experiments were conducted in order to investigate the capacity of the system to detect activity during sleep...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227581/a-novel-system-to-tackle-hospital-acquired-pressure-ulcers
#17
B S Renganathan, S P Preejith, Sridhar Nagaiyan, Jayaraj Joseph, Mohanasankar Sivaprakasam, B S Renganathan, S P Preejith, Sridhar Nagaiyan, Jayaraj Joseph, Mohanasankar Sivaprakasam, S P Preejith, B S Renganathan, Sridhar Nagaiyan, Jayaraj Joseph, Mohanasankar Sivaprakasam
Hospital acquired pressure ulcers (HAPUs) is a major problem that affects around one in twenty patients who are admitted in hospital with sudden illness. These ulcers often occur when patients have limited mobility and cannot change positions in bed on their own. Traditionally, the occurrence of HAPUs has been minimized by turning the patient every 2 hours to alternating lateral and supine positions, and by using pressure redistributing mattresses. In many healthcare facilities, such a patient repositioning schedule is not always maintained owing to low caregiver compliance to turning protocols...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227572/real-time-monitoring-of-swimming-performance
#18
R Delgado-Gonzalo, A Lemkaddem, Ph Renevey, E Muntane Calvo, M Lemay, K Cox, D Ashby, J Willardson, M Bertschi, R Delgado-Gonzalo, A Lemkaddem, Ph Renevey, E Muntane Calvo, M Lemay, K Cox, D Ashby, J Willardson, M Bertschi, M Lemay, A Lemkaddem, Ph Renevey, D Ashby, M Bertschi, E Muntane Calvo, J Willardson, R Delgado-Gonzalo, K Cox
This article presents the performance results of a novel algorithm for swimming analysis in real-time within a low-power wrist-worn device. The estimated parameters are: lap count, stroke count, time in lap, total swimming time, pace/speed per lap, total swam distance, and swimming efficiency (SWOLF). In addition, several swimming styles are automatically detected. Results were obtained using a database composed of 13 different swimmers spanning 646 laps and 858.78 min of total swam time. The final precision achieved in lap detection ranges between 99...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227557/sudden-changes-in-walking-surface-compliance-evoke-contralateral-emg-in-a-hemiparetic-walker-a-case-study-of-inter-leg-coordination-after-neurological-injury
#19
Jeffrey Skidmore, Panagiotis Artemiadis, Jeffrey Skidmore, Panagiotis Artemiadis, Jeffrey Skidmore, Panagiotis Artemiadis
Gait impairment due to neurological disorders is a significant problem around the world. Despite the growing interest in using robotic devices for gait rehabilitation, their widespread use remains limited as there is no clear evidence that robot-assisted gait therapy is superior to traditional treadmill-based therapy. This work is a case study that focuses on investigating the existence of mechanisms of inter-leg coordination after neurological injury, and based on that, proposing novel methods for gait rehabilitation...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227543/fmg-based-body-motion-registration-using-piezoelectret-sensors
#20
Xiangxin Li, Qifang Zhuo, Xu Zhang, Oluwarotimi Williams Samuel, Zeyang Xia, Xiaoqing Zhang, Peng Fang, Guanglin Li, Xiangxin Li, Qifang Zhuo, Xu Zhang, Oluwarotimi Williams Samuel, Zeyang Xia, Xiaoqing Zhang, Peng Fang, Guanglin Li, Xu Zhang, Guanglin Li, Zeyang Xia, Peng Fang, Qifang Zhuo, Oluwarotimi Williams Samuel, Xiaoqing Zhang, Xiangxin Li
Body motion registration can provide plenty of muscle activity information of human beings, which is applicable in the control of human-computer interfaces or real devices. Forcemyography (FMG) is a method to register real-time body motions by measuring the radially directed force distributions that are generated by muscle contractions. In this work, we recorded FMG maps by using a novel type of sensor, the polymer-based piezoelectrets. With five piezoelectret sensor units attached on the surface of thigh muscles, four basic lower-limb motions, leg-raising, leg-dropping, knee-extension, and knee-flexion, were properly captured on four able-bodied subjects...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
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