An automated insertion tool for cochlear implants: another step towards atraumatic cochlear implant surgery

2009 ◽  
Vol 5 (2) ◽  
pp. 163-171 ◽  
Author(s):  
Andreas Hussong ◽  
Thomas S. Rau ◽  
Tobias Ortmaier ◽  
Bodo Heimann ◽  
Thomas Lenarz ◽  
...  
Keyword(s):  
Cochlear Implant ◽  
Cochlear Implants ◽  
Implant Surgery ◽  
Cochlear Implant Surgery ◽  
Insertion Tool

scholarly journals Qualitative assessment of YouTube videos as a source of patient information for cochlear implant surgery

2021 ◽  
pp. 1-4
Author(s):  
C Thomas ◽  
J Westwood ◽  
G F Butt
Keyword(s):  
Cochlear Implant ◽  
Cochlear Implants ◽  
Qualitative Assessment ◽  
Supplementary Information ◽  
Implant Surgery ◽  
Critical Elements ◽  
Positive Elements ◽  
Cochlear Implant Surgery ◽  
Youtube Videos

Abstract Background YouTube is increasingly used as a source of healthcare information. This study evaluated the quality of videos on YouTube about cochlear implants. Methods YouTube was searched using the phrase ‘cochlear implant’. The first 60 results were screened by two independent reviewers. A modified Discern tool was used to evaluate the quality of each video. Results Forty-seven videos were analysed. The mean overall Discern score was 2.0 out of 5.0. Videos scored higher for describing positive elements such as the benefits of a cochlear implant (mean score of 3.4) and scored lower for negative elements such as the risks of cochlear implant surgery (mean score of 1.3). Conclusion The quality of information regarding cochlear implant surgery on YouTube is highly variable. These results demonstrated a bias towards the positive attributes of cochlear implants, with little mention of the risks or uncertainty involved. Although videos may be useful as supplementary information, critical elements required to make an informed decision are lacking. This is of particular importance when patients are considering surgery.

scholarly journals A PRELIMINARY STUDY ON ANALYSIS OF PHONOLOGICAL PROCESSES IN TAMIL SPEAKING HEARING IMPAIRED CHILDREN WITH COCHLEAR IMPLANTS

2021 ◽  
Vol 9 (01) ◽  
pp. 769-773
Author(s):  
Dhinakaran N. ◽  
◽  
Karthikeyan B.M ◽  
Keyword(s):  
Cochlear Implant ◽  
Cochlear Implants ◽  
Speech Intelligibility ◽  
Hearing Impaired ◽  
Phonological Processes ◽  
Implant Surgery ◽  
Younger Age ◽  
Cochlear Implant Surgery ◽  
Impaired Children ◽  
Hearing Impaired Children

Phonological Processes are simplification of sounds which occur among the children during the younger age and will gradually diminish giving an adult like speech form. The aim of the present study is to analyze the occurrence of phonological processes among hearing impaired children who underwent cochlear implant surgery during their younger age as an early intervention. The subjects included in the study were 10 children (5 male and 5 female) who were diagnosed with congenital total hearing impairment and underwent cochlear implant surgery and attending Auditory verbal therapy. The task given to the subjects in the present study is to repeat the words in Tamil Articulation Test followed by the Clinician. The words were recorded and further analyzed for the occurrence of phonological processes. The results show that a total of 26 phonological processes (both typical and atypical) occurred with a maximum occurrence of Depalatalization and minimally of Final Consonant Deletion. The results of the present study help in providing a better knowledge about the occurrence of phonological processes which helps the speech language pathologist in intervening hearing impaired children with cochlear implants and to improve their speech intelligibility.

A Simple Manual Roller Wheel Insertion Tool for Electrode Array Insertion in Minimally Invasive Cochlear Implant Surgery

2019 ◽  
Author(s):  
Narendran Narasimhan ◽  
Katherine E. Riojas ◽  
Trevor L. Bruns ◽  
Jason E. Mitchell ◽  
Robert J. Webster ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Cochlear Implant ◽  
Electrode Array ◽  
Invasive Procedure ◽  
Narrow Channel ◽  
Wide Field ◽  
Implant Surgery ◽  
Stereotactic Frame ◽  
Cochlear Implant Surgery ◽  
Insertion Tool

Image-guided, minimally-invasive cochlear implant surgery is a novel “keyhole” surgical approach for placing a cochlear implant electrode array eliminating the need for a wide-field mastoidectomy approach. Image guidance is used for path planning which is followed by the construction of a customized micro-stereotactic frame to drill a narrow channel from the skull surface to the cochlea. Herein, we present an insertion tool that uses roller wheels to advance the electrode array through the narrow tunnel and into the cochlea. Testing in a phantom revealed that when compared to insertions with surgical forceps, the new insertion tool was on average 26s faster, produced complete insertions more often (i.e. in 6/6 trials, vs. 1/6), and reduced array buckling (0/6 trials vs. 5/6). The tool provides a viable solution to complete the last step of this novel, minimally-invasive procedure. It also provides the advantage over previously developed manual insertion tools of enabling the surgeon to blindly actuate the roller wheel tool to advance the electrode into the tunnel. This allows the surgeon to visualize and guide insertion into the cochlea from a more advantageous visual perspective.

scholarly journals A simple tool to automate the insertion process in cochlear implant surgery

2020 ◽  
Vol 15 (11) ◽  
pp. 1931-1939
Author(s):  
Thomas S. Rau ◽  
M. Geraldine Zuniga ◽  
Rolf Salcher ◽  
Thomas Lenarz
Keyword(s):  
Cochlear Implant ◽  
Infusion Pump ◽  
Electrode Arrays ◽  
Forward Motion ◽  
Implant Surgery ◽  
Simple Tool ◽  
Cochlear Implant Surgery ◽  
Slow Velocity ◽  
Insertion Tool ◽  
Insertion Process

Abstract Purpose 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 and create a simple tool able to automate the EA insertion process; and (2) to perform preliminary evaluations of the designed prototype. Methods A first prototype of a tool with maximum simplicity was designed and fabricated to take advantage of hydraulic actuation. The prototype facilitates automated forward motion using a syringe connected to an infusion pump. Initial prototype evaluation included: (1) testing of forward motion at different velocities (2) EA insertion trials into an artificial cochlear model with force recordings, and (3) evaluation of device handling, fixation and positioning using cadaver head specimens and a surgical retractor. Alignment of the tool was explored with CT imaging. Results In this initial phase, the prototype demonstrated easy assembly and ability to respond to hydraulic actuation driven by an infusion pump at different velocities. EA insertions at an ultra-slow velocity of 0.03 mm/s revealed smooth force profiles with mean maximum force of 0.060 N ± 0.007 N. Device positioning with an appropriate insertion axis into the cochlea was deemed feasible and easy to achieve. Conclusions Initial testing of our hydraulic insertion tool did not reveal any serious complications that contradict the initially defined design specifications. Further meticulous testing is needed to determine the safety of the device, its reliability and clinical applicability.

Clinical Translation of an Insertion Tool for Minimally Invasive Cochlear Implant Surgery

2021 ◽  
Vol 15 (3) ◽  
Author(s):  
Katherine E. Riojas ◽  
Emily T. Tran ◽  
Michael H. Freeman ◽  
Jack H. Noble ◽  
Robert J. Webster ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Cochlear Implant ◽  
Clinical Case ◽  
Tool Design ◽  
Clinical Translation ◽  
Parameter Analysis ◽  
Implant Surgery ◽  
Phantom Model ◽  
Cochlear Implant Surgery ◽  
Insertion Tool

Abstract The objective of this paper is to describe the development of a minimally invasive cochlear implant surgery (MICIS) electrode array insertion tool concept to enable clinical translation. First, analysis of the geometric parameters of potential MICIS patients (N = 97) was performed to inform tool design, inform MICIS phantom model design, and provide further insight into MICIS candidacy. Design changes were made to the insertion tool based on clinical requirements and parameter analysis results. A MICIS phantom testing model was built to evaluate insertion force profiles in a clinically realistic manner, and the new tool design was evaluated in the model and in cadavers to test clinical viability. Finally, after regulatory approval, the tool was used for the first time in a clinical case. Results of this work included first, in the parameter analysis, approximately 20% of the population was not considered viable MICIS candidates. Additionally, one 3D printed tool could accommodate all viable candidates with polyimide sheath length adjustments accounting for interpatient variation. The insertion tool design was miniaturized out of clinical necessity and a disassembly method, necessary for removal around the cochlear implant, was developed and tested. Phantom model testing revealed that the force profile of the insertion tool was similar to that of traditional forceps insertion. Cadaver testing demonstrated that all clinical requirements (including complete disassembly) were achieved with the tool, and the new tool enabled 15% deeper insertions compared to the forceps approach. Finally, and most importantly, the tool helped achieve a full insertion in its first MICIS clinical case. In conclusion, the new insertion tool provides a clinically viable solution to one of the most difficult aspects of MICIS.

Use of negative pressure wound therapy to treat a cochlear implant infection around the auricle: a case report

2020 ◽  
Vol 29 (10) ◽  
pp. 568-571
Author(s):  
Seita Fukushima ◽  
Noritaka Komune ◽  
Kenichi Kamizono ◽  
Nozomu Matsumoto ◽  
Kazutaka Takaiwa ◽  
...  
Keyword(s):  
Cochlear Implant ◽  
Negative Pressure ◽  
Negative Pressure Wound Therapy ◽  
Neck Region ◽  
Wound Therapy ◽  
Head And Neck Region ◽  
Implant Surgery ◽  
Uncontrolled Diabetes ◽  
Cochlear Implant Surgery ◽  
Bilateral Sensorineural Hearing Loss

Although negative pressure wound therapy (NPWT) is widely used, its application to the head and neck region remains challenging due to anatomical complexities. This report presents the case of a female patient presenting with mitochondrial encephalomyopathy with lactic acidosis and stroke-like episodes, uncontrolled diabetes and severe bilateral sensorineural hearing loss. The patient had undergone cochlear implant surgery and five months later the wound was infected with methicillin-resistant Staphylococcus aureus (MRSA). NPWT was started shortly after removing the internal receiver and was stopped 11 days later. NPWT helped in controlling infection and led to a successful wound closure. In this case, NPWT was effective in treating infectious wounds around the auricle after cochlear implant surgery. Declaration of interest: The authors have no financial support for this article and no conflict of interest directly relevant to the content of this article.

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