Results 21 to 30 of about 53,250 (267)

A multiple electrode cochlear implant [PDF]

The Journal of Laryngology & Otology, 1977
The University of Melbourne Departments of Otolaryngology and Electrical Engineering (UMDOLEE) receiving and stimulating component of a multiple-electrode cochlear implant hearing prosthesis produces constant stimulation. It has a stimulating pulse shape that minimizes the production of toxic substances and loss of metal from the electrodes, and this ...
Clark, Graeme M., Tong, Y. C., Black, R., Forster, I. C., Patrick, J. F., Dewhurst, D. J.   +5 more
openaire   +2 more sources

Electrochemical properties of titanium nitride nerve stimulation electrodes: An in vitro and in vivo study

Frontiers in Neuroscience, 2015
The in vivo electrochemical behavior of titanium nitride (TiN) nerve stimulation electrodes was compared to their in vitro behavior for a period of 90 days. Ten electrodes were implanted in two Göttingen minipigs.
Suzan eMeijs, Morten eFjorback, Carina eJensen, Søren eSørensen, Kristian eRechendorff, Nico J. M. Rijkhoff   +5 more
doaj   +1 more source

Structural changes in the retina after implantation of subretinal three-dimensional implants in mini pigs

Frontiers in Neuroscience, 2022
The retinal structural changes after subretinal implantation of three-dimensional (3D) microelectrodes were investigated in a mini pig. Three types of electrode were implanted into the subretinal spaces of nine mini pigs: 75-μm-high 3D electrodes on a ...
Que Anh Vu, Que Anh Vu, Hee Won Seo, Kwang-Eon Choi, Namju Kim, Yoo Na Kang, Jaemeun Lee, Sun-Hyun Park, Jee Taek Kim, Sohee Kim, Seong-Woo Kim   +10 more
doaj   +1 more source

A challenging case of transvenous lead extraction

Türk Kardiyoloji Derneği Arşivi, 2015
A 72-year-old male patient with a 7-year history of cardioverter-defibrillator (ICD) implantation was admitted to our clinic with pocket infection. One year prior to this admission, he had undergone an unsuccessful extraction procedure at another clinic,
Tolga Aksu, Tumer Erdem Guler, Kazim Serhan Ozcan, Ismail Erden   +3 more
doaj   +1 more source

Grip control and motor coordination with implanted and surface electrodes while grasping with an osseointegrated prosthetic hand

Journal of NeuroEngineering and Rehabilitation, 2019
Background Replacement of a lost limb by an artificial substitute is not yet ideal. Resolution and coordination of motor control approximating that of a biological limb could dramatically improve the functionality of prosthetic devices, and thus reduce ...
Enzo Mastinu, Francesco Clemente, Paolo Sassu, Oskar Aszmann, Rickard Brånemark, Bo Håkansson, Marco Controzzi, Christian Cipriani, Max Ortiz-Catalan   +8 more
doaj   +1 more source

Modeling intracranial electrodes. A simulation platform for the evaluation of localization algorithms

Frontiers in Neuroinformatics, 2022
IntroductionIntracranial electrodes are implanted in patients with drug-resistant epilepsy as part of their pre-surgical evaluation. This allows the investigation of normal and pathological brain functions with excellent spatial and temporal resolution ...
Alejandro O. Blenkmann, Alejandro O. Blenkmann, Anne-Kristin Solbakk, Anne-Kristin Solbakk, Anne-Kristin Solbakk, Anne-Kristin Solbakk, Jugoslav Ivanovic, Pål Gunnar Larsson, Robert T. Knight, Tor Endestad, Tor Endestad, Tor Endestad   +11 more
doaj   +1 more source

Chronic nerve health following implantation of femoral nerve cuff electrodes

Journal of NeuroEngineering and Rehabilitation, 2020
Background Peripheral nerve stimulation with implanted nerve cuff electrodes can restore standing, stepping and other functions to individuals with spinal cord injury (SCI).
Max J. Freeberg, Gilles C. J. Pinault, Dustin J. Tyler, Ronald J. Triolo, Rahila Ansari   +4 more
doaj   +1 more source

Accuracy and Workflow Improvements for Responsive Neurostimulation Hippocampal Depth Electrode Placement Using Robotic Stereotaxy

Frontiers in Neurology, 2020
Background: Robotic stereotaxy is increasingly common in epilepsy surgery for the implantation of stereo-electroencephalography (sEEG) electrodes for intracranial seizure monitoring. The use of robots is also gaining popularity for permanent stereotactic
Patrick J. Karas, Nisha Giridharan, Jeffrey M. Treiber, Marc A. Prablek, A. Basit Khan, Ben Shofty, Vaishnav Krishnan, Jennifer Chu, Paul C. Van Ness, Atul Maheshwari, Zulfi Haneef, Jay R. Gavvala, Sameer A. Sheth   +12 more
doaj   +1 more source

Evaluating the Longevity of Implantable Pulse Generator Used in Deep Brain Stimulation: A Systematic Review

Iranian Journal of Neurosurgery, 2022
Background and Aim: Deep Brain Stimulation (DBS) surgery is increasingly performed to treat movement disorders. In these patients, a rechargeable or non-rechargeable battery is placed under their subcutaneous chest after implantation of an electrode in ...
Sedigheh Hannani, Atefeh Beigi-Khoozani, Azimeh Afshar-Zarandi   +2 more
doaj  

Implantation and reimplantation of intracranial EEG electrodes in patients considering epilepsy surgery

Epilepsia Open, 2023
In patients with drug‐resistant epilepsy who are considering surgery, intracranial EEG (iEEG) helps delineate the putative epileptogenic zone. In a minority of patients, iEEG fails to identify seizure onsets.
Céline Eelbode, Laurent Spinelli, Marco Corniola, Shahan Momjian, Margitta Seeck, Karl Schaller, Pierre Mégevand   +6 more
doaj   +1 more source