Publications by authors named "P Aebischer"
Quantitative in-vitro assessment of a novel robot-assisted system for cochlear implant electrode insertion.
Int J Comput Assist Radiol Surg
October 2024
Article Synopsis
- This study focuses on improving cochlear implant procedures by testing a new robotic tool designed to minimize trauma during the insertion of electrodes, which is crucial for preserving hearing in patients with some remaining inner ear function.
- Using a validated model, the researchers conducted 60 insertions (30 manual and 30 robot-assisted) and found that the robotic method significantly reduced force variation and intracochlear pressure peaks compared to manual techniques.
- The findings suggest that robotic assistance allows for more controlled and consistent insertion speeds, potentially enhancing hearing preservation while indicating that further research is needed to address later stages of the surgery.
Objective: Limitations in human kinematics during cochlear implantation induce pressure transients and increased forces on intracochlear structures. Herein, we present a novel head-mounted surgical tool designed for the motorized insertion of cochlear implant electrode arrays. The tool integrates a force measurement feature to overcome the lack of haptic feedback in current robotic solutions.
View Article and Find Full Text PDFObjectives: The aim of this study is to improve our understanding of the mechanics involved in the insertion of lateral wall cochlear implant electrode arrays.
Design: A series of 30 insertion experiments were conducted by three experienced surgeons. The experiments were carried out in a previously validated artificial temporal bone model according to established soft surgery guidelines.
Introduction And Objectives: Maintaining the structural integrity of the cochlea and preserving residual hearing is crucial for patients, especially for those for whom electric acoustic stimulation is intended. Impedances could reflect trauma due to electrode array insertion and therefore could serve as a biomarker for residual hearing. The aim of this study is to evaluate the association between residual hearing and estimated impedance subcomponents in a known collective from an exploratory study.
View Article and Find Full Text PDFObjectives: Reliable determination of cochlear implant electrode positions shows promise for clinical applications, including anatomy-based fitting of audio processors or monitoring of electrode migration during follow-up. Currently, electrode positioning is measured using radiography. The primary objective of this study is to extend and validate an impedance-based method for estimating electrode insertion depths, which could serve as a radiation-free and cost-effective alternative to radiography.
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