Characterization of friction and speed effects and methods for detection of cochlear implant electrode tip fold-over

Pile, Jason; Simaan, Nabil

doi:10.1109/icra.2013.6631202

Cited by 16 publications

(28 citation statements)

References 16 publications

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“…A summary of the most relevant studies is included as Table 2. [16][17][18][19][20] The average forces obtained in the current study are comparable with the range of those previously reported.…”

Section: Discussionsupporting

confidence: 89%

Forces and Trauma Associated with Minimally‐Invasive, Image‐Guided Cochlear Implantation

Rohani¹,

Pile²,

Kahrs³

et al. 2013

Otolaryngol.--head neck surg.

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Oral PresentationsP99 simulation sounded more pleasant, natural, and musical when the vocals were removed and when only rhythmic instruments were included (all P values < 0.005).Conclusions: Musical enjoyment with or without CI is influenced by the complexity of the original music. Our study offers preliminary evidence that reduction of music complexity has the potential to make listening more enjoyable for the CI listener. Thus, in addition to improvement in software and hardware, engineering of music specifically for a CI listener may be an alternative means to enhance their listening experience.Objectives: 1) Determine the prevalence of a non-bony or fibrous incudostapedial (IS) joint in the setting of congenital aural atresia. 2) Assess this anomaly's impact on surgical management and associated hearing outcomes.

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Section: Discussionsupporting

confidence: 89%

Forces and Trauma Associated with Minimally‐Invasive, Image‐Guided Cochlear Implantation

Rohani¹,

Pile²,

Kahrs³

et al. 2013

Otolaryngol.--head neck surg.

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“…Insertions were performed in either bone samples or cochlear models. A summary of the most relevant studies is included as Table 2 16–20 . The average forces obtained in the current study are comparable with the range of those previously reported.…”

Section: Discussionmentioning

confidence: 99%

Forces and Trauma Associated with Minimally Invasive Image‐Guided Cochlear Implantation

Rohani

Pile

Kahrs

et al. 2014

Otolaryngol.--head neck surg.

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Objective Minimally-invasive, image-guided cochlear implantation (CI) utilizes a patient-customized microstereotactic frame to access the cochlea via a single drill-pass. We investigate the average force and trauma associated with the insertion of lateral wall CI electrodes using this technique. Study Design Assessment using cadaveric temporal bones Setting Laboratory setup Subjects and Methods Microstereotactic frames for six fresh cadaveric temporal bones were built using CT scans to determine an optimal drill path following which drilling was performed. CI electrodes were inserted using surgical forceps to manually advance the CI electrode array, via the drilled tunnel, into the cochlea. Forces were recorded using a six-axis load sensor placed under the temporal bone during the insertion of lateral wall electrode arrays (two each of Nucleus CI422, MED-EL standard, and modified MED-EL electrodes with stiffeners). Tissue histology was performed by microdissection of the otic capsule and apical photo-documentation of electrode position and intracochlear tissue. Results After drilling, CT scanning demonstrated successful access to cochlea in all six bones. Average insertion forces ranged from 0.009 to 0.078N. Peak forces were in the range of 0.056–0.469N. Tissue histology showed complete scala tympani insertion in five specimens and scala vestibuli insertion in the remaining specimen with depth of insertion ranging from 360–600°. No intracochlear trauma was identified. Conclusion The use of lateral wall electrodes with the minimally-invasive, image-guided CI approach was associated with insertion forces comparable to traditional CI surgery. Deep insertions were obtained without identifiable trauma.

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“…Improper depth of AOS can contribute to improper EA seating and potential tip fold‐over . While markers on the PEA indicate a preferred AOS initiation depth, variability in anatomy and drilling changes the optimal AOS depth for a given patient.…”

Section: Methodsmentioning

confidence: 99%

Investigating variability in cochlear implant electrode array alignment and the potential of visualization guidance

Yasin

Dedmon

Dillon

et al. 2019

Robotics Computer Surgery

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Funding information Cochlear BackgroundInternal cochlear anatomy is difficult to discern from external inspection, hindering cochlear implant electrode insertion. MethodsA user study characterized the repeatability of standard surgical technique and examined the role of visual inspection and guidance cues in reducing electrode array insertion misalignment. ResultsWithout guidance, a large spread in angles of insertion, up to 30 • , was observed, highlighting the need for intraoperative guidance. Visual inspection did not significantly improve overall orientation, suggesting the need for alternate intracochlear visualization methods and/or increased training to effectively improve surgeon understanding of the visualized images. Visual cues and guidance software increased repeatability of surgeon performance, reducing one metric of repeatability to ±2 • . ConclusionsThis study establishes a baseline for surgeon variability in cochlear implant insertion and supports the need and lays the groundwork for future intraoperative guidance techniques.

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Characterization of friction and speed effects and methods for detection of cochlear implant electrode tip fold-over

Cited by 16 publications

References 16 publications

Forces and Trauma Associated with Minimally‐Invasive, Image‐Guided Cochlear Implantation

Forces and Trauma Associated with Minimally‐Invasive, Image‐Guided Cochlear Implantation

Forces and Trauma Associated with Minimally Invasive Image‐Guided Cochlear Implantation

Investigating variability in cochlear implant electrode array alignment and the potential of visualization guidance

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