23 Result(s)
within
Thomas S. Rau
English
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Article
Open AccessPreclinical evaluation of a tool for insertion force measurements in cochlear implant surgery
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...
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Article
Open AccessDrilling accuracy evaluation of a mouldable surgical targeting system for minimally invasive access to anatomic targets in the temporal bone
Minimally invasive cochlear implant surgery using a micro-stereotactic surgical targeting system with on-site moulding of the template aims for a reliable, less experience-dependent access to the inner ear und...
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Article
Open AccessA method for accurate and reproducible specimen alignment for insertion tests of cochlear implant electrode arrays
The trajectory along which the cochlear implant electrode array is inserted influences the insertion forces and the probability for intracochlear trauma. Controlling the trajectory is especially relevant for r...
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Open AccessCorrection to: Hydraulic insertions of cochlear implant electrode arrays into the human cadaver cochlea: preliminary findings
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Open AccessHydraulic insertions of cochlear implant electrode arrays into the human cadaver cochlea: preliminary findings
(1) To evaluate the feasibility of a non-invasive, novel, simple insertion tool to perform automated, slow insertions of cochlear implant electrode arrays (EA) into a human cadaver cochlea; (2) to estimate the...
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Open AccessA simple tool to automate the insertion process in cochlear implant surgery
Automated insertion of electrode arrays (EA) in cochlear implant surgery is presumed to be less traumatic than manual insertions, but no tool is widely available in the operating room. We sought (1) to design ...
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Article
Workflow assessment as a preclinical development tool
Minimally invasive cochlear implant surgery is a challenging procedure due to high demands on accuracy. For clinical success, an according assistance system has to compete against the traditional approach in t...
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Investigation of ultra-low insertion speeds in an inelastic artificial cochlear model using custom-made cochlear implant electrodes
Latest research on cochlear implantations focuses on hearing preservation during insertion of the implant’s electrode array by reducing insertion trauma. One parameter which may influence trauma is insertion s...
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Article
Numerical analysis of intracochlear mechanical auditory stimulation using piezoelectric bending actuators
Cochlear implantation can restore a certain degree of auditory impression of patients suffering from profound hearing loss or deafness. Furthermore, studies have shown that in case of residual hearing, patient...
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Article
On the accuracy of cochlear duct length measurement in computed tomographic images
Patient specific selection of cochlear implants would benefit from pre-operative knowledge of cochlear length. Several methods for its measurement or estimation have been described in literature. This study fo...
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Article
Insertion forces and intracochlear trauma in temporal bone specimens implanted with a straight atraumatic electrode array
The aim of the study was to evaluate insertion forces during manual insertion of a straight atraumatic electrode in human temporal bones, and post-implantation histologic evaluation of the samples to determine...
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Article
Insertion trauma of a cochlear implant electrode array with Nitinol inlay
The integration of a shape memory actuator is a potential mechanism to achieve a consistent perimodiolar position after electrode insertion during cochlear implant surgery. After warming up, and therefore acti...
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Article
Visualization, measurement and modelling of the cochlea using rotating midmodiolar slice planes
Cross-sectional visualization of anatomical structures in DICOM viewers is usually presented in parallel slices. For visualizing the inner ear, this concept is unfavourable due to the spiral shape of the cochl...
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Article
Determination of optimal excitation patterns for local mechanical inner ear stimulation using a physiologically-based model
Within the field of hearing prosthetics it is known that patients with sufficient residual hearing benefit from the simultaneous employment of hearing aid and cochlear implant. Several attempts have been propo...
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Article
Configuration optimization and experimental accuracy evaluation of a bone-attached, parallel robot for skull surgery
Minimally invasive cochlear implantation is a novel surgical technique which requires highly accurate guidance of a drilling tool along a trajectory from the mastoid surface toward the basal turn of the cochle...
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Temporal bone borehole accuracy for cochlear implantation influenced by drilling strategy: an in vitro study
Minimally invasive cochlear implantation is a surgical technique which requires drilling a canal from the mastoid surface toward the basal turn of the cochlea. The choice of an appropriate drilling strategy is...
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Article
An automated insertion tool for cochlear implants with integrated force sensing capability
Minimally invasive cochlear implantation and residual hearing preservation require both the surgical approach to the cochlea as well as the implant insertion to be performed in an atraumatic fashion. Consider...
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Open AccessThree-dimensional histological specimen preparation for accurate imaging and spatial reconstruction of the middle and inner ear
This paper presents a highly accurate cross-sectional preparation technique. The research aim was to develop an adequate imaging modality for both soft and bony tissue structures featuring high contrast and...
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Article
Determination of the curling behavior of a preformed cochlear implant electrode array
Accurate insertion of a cochlear implant electrode array into the cochlea’s helical shape is a crucial step for residual hearing preservation. In image-guided surgery, especially using an automated insertion t...
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Article
An automated insertion tool for cochlear implants: another step towards atraumatic cochlear implant surgery
Atraumatic electrode insertion has been identified to be a crucial step for the preservation of residual hearing abilities, which allows hybrid electro-acoustic stimulation (EAS). The authors propose a tool fo...
