∥M. Geraldine Zuniga
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View article: Preclinical evaluation of a tool for insertion force measurements in cochlear implant surgery
Preclinical evaluation of a tool for insertion force measurements in cochlear implant surgery Open
Purpose Trauma that may be inflicted to the inner ear (cochlea) during the insertion of an electrode array (EA) in cochlear implant (CI) surgery can significantly decrease the hearing outcome of patients with residual hearing. Interaction …
View article: A Tool to Enable Intraoperative Insertion Force Measurements for Cochlear Implant Surgery
A Tool to Enable Intraoperative Insertion Force Measurements for Cochlear Implant Surgery Open
Objective: Residual hearing preservation during cochlear implant (CI) surgery is closely linked to the magnitude of intracochlear forces acting during the insertion process. So far, these forces have only been measured in vitro. Therefore,…
View article: Ex Vivo Evaluation of a Minimally Invasive Approach for Cochlear Implant Surgery
Ex Vivo Evaluation of a Minimally Invasive Approach for Cochlear Implant Surgery Open
First evaluation of the new system in a comprehensive ex vivo study demonstrating sufficient accuracy and the feasibility of the whole concept.
View article: Toward a cochlear implant electrode array with shape memory effect for post‐insertion perimodiolar positioning
Toward a cochlear implant electrode array with shape memory effect for post‐insertion perimodiolar positioning Open
For cochlear implants (CI) a final position of the electrode array (EA) along the inner wall of the spirally shaped cochlea is considered to be beneficial because it results in a closer proximity to the auditory nerve fibers. A shape memor…
View article: Development and translation of a novel electrical hearing prosthesis for direct stimulation within the auditory nerve: the Auditory Nerve Implant (ANI)
Development and translation of a novel electrical hearing prosthesis for direct stimulation within the auditory nerve: the Auditory Nerve Implant (ANI) Open
In collaboration with several institutions, an intracranial electrical hearing prosthesis is currently being developed, which stimulates directly in the auditory nerve between the cochlea and the brainstem: the Auditory Nerve Implant (ANI)…
View article: A method for image-guided positioning of cochlear specimens in insertion test benches using 3D printed stands
A method for image-guided positioning of cochlear specimens in insertion test benches using 3D printed stands Open
Cochlear implants include an electrode array (EA) which needs to be inserted into the cochlea. Insertion tests using artificial cochlear models (ACM) or ex vivo specimens are widely used methods during EA development to characterize EA des…
View article: A method to determine the accuracy of shape setting thin, spirally shaped Nitinol wires
A method to determine the accuracy of shape setting thin, spirally shaped Nitinol wires Open
Electric stimulation of the auditory nerve using a cochlear implant (CI) is presumed to be superior when the electrode array (EA) is placed close to the inner wall of the cochlea. Nitinol is investigated as an actuator that enables an intr…
View article: Reliability of start and stop control of hydraulic actuation for the insertion of electrode arrays
Reliability of start and stop control of hydraulic actuation for the insertion of electrode arrays Open
Atraumatic insertions of electrode arrays (EA) into the cochlea aim to preserve natural structures and residual hearing. However, there is a limit as to how smooth and slow a surgeon can insert an EA. As a potential solution, we recently p…
View article: Illustrating orientation changes of the insertion trajectory during cochlear implant electrode array insertion
Illustrating orientation changes of the insertion trajectory during cochlear implant electrode array insertion Open
Introduction: Recent investigations focused on the optimization of atraumatic cochlear implant surgery have highlighted the relevance of the electrode array (EA) insertion trajectory. This is particularly studied in the context of minimall…
View article: A software for online monitoring of orientation-compensated forces during CI insertion
A software for online monitoring of orientation-compensated forces during CI insertion Open
The electrode array insertion is a critical point during CI surgery and should be performed as gently as possible to preserve residual hearing. In order to measure occurring forces, an insertion tool with an integrated force sensor and an …
View article: Preliminary time estimations using a novel and simple insertion tool for cochlear implant electrode arrays: observations toward clinical application
Preliminary time estimations using a novel and simple insertion tool for cochlear implant electrode arrays: observations toward clinical application Open
Introduction Automated insertion of electrode arrays (EA) for cochlear implant (CI) surgery may enhance atraumatic results by facilitating velocities and insertion characteristics (e.g. without tremor) challenging for the human hand. We re…
View article: On the stiffness properties of custom-made silicone dummies for the development of cochlear implant electrode arrays with a shape memory wire
On the stiffness properties of custom-made silicone dummies for the development of cochlear implant electrode arrays with a shape memory wire Open
Introduction In cochlear implant surgery, an electrode array (EA) that could be atraumatically inserted and could later adopt a perimodiolar position is desired and under development. Evidence has shown this position shift could be achieve…
View article: The Cochlea Hydro Drive
The Cochlea Hydro Drive Open
Introduction Automated insertion of electrode arrays (EA) during cochlear implant (CI) surgery could provide the benefit to minimize intracochlear trauma and consequently optimize hearing outcomes in CI recipients. While automated insertio…
View article: Teacher Prescreening for Hearing Loss in the Developing World
Teacher Prescreening for Hearing Loss in the Developing World Open
The goal of this prospective cohort study was to characterize the ability of teachers to identify schoolchildren at risk of hearing loss in order to maximize hearing screening efficiency in low-resource settings. At 4 semirural schools in …
View article: Clinical and Physiologic Predictors and Postoperative Outcomes of Near Dehiscence Syndrome
Clinical and Physiologic Predictors and Postoperative Outcomes of Near Dehiscence Syndrome Open
Objective: To identify predictors of near dehiscence (ND) or thin rather than dehiscent bone overlying the superior semicircular canal in patients with signs and symptoms suggestive of superior semicircular canal dehiscence syndrome (SCDS)…
View article: Tip Fold-over in Cochlear Implantation: Case Series
Tip Fold-over in Cochlear Implantation: Case Series Open
Objective: To describe the incidence, clinical presentation, and performance of cochlear implant (CI) recipients with tip fold-over. Study Design: Retrospective case series. Setting: Tertiary referral center. Patients: CI recipients who un…
View article: Electrode Location and Angular Insertion Depth Are Predictors of Audiologic Outcomes in Cochlear Implantation
Electrode Location and Angular Insertion Depth Are Predictors of Audiologic Outcomes in Cochlear Implantation Open
Electrode design and surgical approach were predictors of scalar electrode location. Specifically, LW electrodes showed higher rates of ST insertion compared with PM or MS. RW and ERW approaches showed higher rates of ST insertion when com…