Results 31 to 40 of about 74,147 (327)
Drive and measurement electrode patterns for electrode impedance tomography (EIT) imaging of neural activity in peripheral nerve [PDF]
Hope, J., Vanholsbeeck, F., & McDaid, A. (2018). Drive and
measurement electrode patterns for electrode impedance tomography (EIT)
imaging of neural activity in peripheral nerve. Biomedical Physics and
Engineering Express, 4 (6), 2018 Objective: To establish the performance of several drive and measurement patterns in EIT imaging of neural activity in peripheral nerve, which involves large impedance change in the nerve's anisotropic length axis. Approach: Eight drive and measurement electrode patterns are compared using a finite element (FE) four cylindrical shell model of a ...
arxiv +1 more source
Experimental validation of a three-dimensional heat transfer model within the scala tympani with application to magnetic cochlear implant surgery [PDF]
IEEE Transactions on Biomedical Engineering, 2021, 2020 Magnetic guidance of cochlear implants is a promising technique to reduce the risk of physical trauma during surgery. In this approach, a magnet attached to the tip of the implant electrode array is guided within the scala tympani using a magnetic field.
arxiv +1 more source
MagNI: A Magnetoelectrically Powered and Controlled Wireless Neurostimulating Implant [PDF]
IEEE Transactions on Biomedical Circuits and Systems (TBioCAS),
Volume: 14, Issue: 6, Pages: 1241-1252, Dec. 2020, 2021 This paper presents the first wireless and programmable neural stimulator leveraging magnetoelectric (ME) effects for power and data transfer. Thanks to low tissue absorption, low misalignment sensitivity and high power transfer efficiency, the ME effect enables safe delivery of high power levels (a few milliwatts) at low resonant frequencies (~250 kHz)
arxiv +1 more source
Healthcare Technology Letters, 2019 This work proposes and computationally investigate the use of magnetic neural stimulation as an alternative to electrical stimulation to achieve selective activation of rat sciatic nerve.
Pragya Kosta +3 more
doaj +1 more source
npj Flexible Electronics, 2022 Electrophysiological monitoring under strenuous exercise by using stretchable dry electrodes is vital for healthcare monitoring, prosthetic control, human−machine interfaces and other biomedical applications.
Ruijie Xie +13 more
doaj +1 more source
IEEE Access, 2023 A large number of health and wellness applications wish to monitor electrocardiogram signal (ECG) in the least intrusive way possible. The use of dry textile electrodes with high input impedance bio-amplifiers is a common technique. This paper presents a
Robert Camos-Vidal, Javier Rosell-Ferrer
doaj +1 more source
Sensors, 2019 The aim of this study was to investigate the use of inexpensive and easy-to-use hydrogel “marble” electrodes for the recording of electrical potentials of the human visual cortex using visual evoked potentials (VEPs) as example.
Torsten Straßer +5 more
doaj +1 more source
Spinal cord stimulation for the restoration of bladder function after spinal cord injury
Healthcare Technology Letters, 2020 Spinal cord injury (SCI) results in the inability to empty the bladder voluntarily, and neurogenic detrusor overactivity (NDO) and detrusor sphincter dyssynergia (DSD) negatively impact both the health and quality of life of persons with SCI.
Casey J. Steadman, Warren M. Grill
doaj +1 more source
Flexible hybrid graphene/a-Si:H multispectral photodetectors [PDF]
Nanoscale, 2017, 9, 8573-8579, 2017 We report on the integration of large area CVD grown single- and bilayer graphene transparent conductive electrodes (TCEs) on amorphous silicon multispectral photodetectors. The broadband transmission of graphene results in 440% enhancement of the detectors' spectral response in the ultraviolet (UV) region at {\lambda} = 320 nm compared to reference ...
arxiv +1 more source
A Novel Power-optimized CMOS sEMG Device with Ultra Low-noise integrated with ConvNet (VGG16) for Biomedical Applications [PDF]
, 2023 The needle bio-potential sensors for measuring muscle and brain activity need invasive surgical targeted muscle reinnervation (TMR) and a demanding process to maintain, but surface bio-potential sensors lack clear bio-signal reading (Signal-Interference).
arxiv +1 more source