Results 21 to 30 of about 57,391 (300)

Enhanced Artificial Vision for Visually Impaired Using Visual Implants

open access: yesIEEE Access, 2023
Argus II is the most advanced retina implants approved by the US FDA and almost 350 visually impaired people are using it. This implant uses 60 microelectrodes implanted in the retina.
Hossein Mahvash Mohammadi   +2 more
doaj   +1 more source

Temporal structure in spiking patterns of ganglion cells defines perceptual thresholds in rodents with subretinal prosthesis. [PDF]

open access: yes, 2018
Subretinal prostheses are designed to restore sight in patients blinded by retinal degeneration using electrical stimulation of the inner retinal neurons.
Goetz, Georges   +8 more
core   +3 more sources

A Model for Assessing the Electromagnetic Safety of an Inductively Coupled, Modular Brain-Machine Interface

open access: yesIEEE Transactions on Neural Systems and Rehabilitation Engineering, 2022
Brain-Machine Interfaces (BMI) offer the potential to modulate dysfunctional neurological networks by electrically stimulating the cerebral cortex via chronically-implanted microelectrodes. Wireless transmitters worn by BMI recipients must operate within
Julian Szlawski   +4 more
doaj   +1 more source

Osseointegrated finger prostheses using a tripod titanium mini-plate [PDF]

open access: yes, 2017
BACKGROUND: Digital amputation is a common upper extremity injury and can cause significant impairment in hand function, as well as psychosocial stigma.
Ciudad, Pedro   +5 more
core   +2 more sources

Use of accelerometers in the control of practical prosthetic arms [PDF]

open access: yes, 2017
Accelerometers can be used to augment the control of powered prosthetic arms. They can detect the orientation of the joint and limb and the controller can correct for the amount of torque required to move the limb.
Kyberd, Peter J, Poulton, Adrian
core   +3 more sources

Use of cortical electrodes in solving visual prosthesis problems

open access: yesАнналы клинической и экспериментальной неврологии, 2017
There are two main approaches to visual function prosthesis in blindpatients with the use of brain-computer interfaces on the basisof either retinal or cortical stimulation by implanted electrodes. Themost complex in visual prosthesis is creation of the
B. Kh. Baziyan   +3 more
doaj   +1 more source

Effect of the electrode array-retina gap distance on visual function in patients with the Argus II retinal prosthesis

open access: yesBMC Ophthalmology, 2020
Background Post-implantation visual outcomes in patients with the Argus II Retinal Prosthesis is dependent on a multitude of factors including the positioning of the electrode array on the retina.
Abhishek Naidu   +3 more
doaj   +1 more source

P3-7: On Prototyping a Visual Prosthesis System with Artificial Retina and Optic Nerve Based on Arrayed Microfibers

open access: yesi-Perception, 2012
The traditional visual prosthesis system combines both a camera and a microelectrode array implanted on the visual neural network including retina, optic nerve, and visual cortex.
Jian Hong Chen, Lon Alex Wang
doaj   +1 more source

Cobalt toxic optic neuropathy and retinopathy: Case report and review of the literature

open access: yesAmerican Journal of Ophthalmology Case Reports, 2020
Purpose: We detail a case of cobalt toxicity with visual and systemic complications, review the pathogenic process for the optic neuropathy and retinopathy, and discuss the controversy of metallic hip prosthesis. Observations: A 59-year-old female with a
Maria D. Garcia   +3 more
doaj   +1 more source

neuroBi: A Highly Configurable Neurostimulator for a Retinal Prosthesis and Other Applications

open access: yesIEEE Journal of Translational Engineering in Health and Medicine, 2015
To evaluate the efficacy of a suprachoroidal retinal prosthesis, a highly configurable external neurostimulator is required. In order to meet functional and safety specifications, it was necessary to develop a custom device.
Kyle D. Slater   +4 more
doaj   +1 more source

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