scholarly journals A Pilot Study of Robot-Assisted Cochlear Implant Surgery Using Steerable Electrode Arrays

2006 ◽  
pp. 33-40 ◽  
Author(s):  
Jian Zhang ◽  
Kai Xu ◽  
Nabil Simaan ◽  
Spiros Manolidis
Keyword(s):  
Pilot Study ◽  
Cochlear Implant ◽  
Electrode Arrays ◽  
Robot Assisted ◽  
Implant Surgery ◽  
Cochlear Implant Surgery

Inroads Toward Robot-Assisted Cochlear Implant Surgery Using Steerable Electrode Arrays

2010 ◽  
Vol 31 (8) ◽  
pp. 1199-1206 ◽  
Author(s):  
Jian Zhang ◽  
Wei Wei ◽  
Jienan Ding ◽  
J. Thomas Roland ◽  
Spiros Manolidis ◽  
...  
Keyword(s):  
Cochlear Implant ◽  
Electrode Arrays ◽  
Robot Assisted ◽  
Implant Surgery ◽  
Cochlear Implant Surgery

Preservation of Residual Hearing After Cochlear Implant Surgery With Deep Insertion Electrode Arrays

2019 ◽  
Vol 40 (4) ◽  
pp. e373-e380 ◽  
Author(s):  
Cristina Sierra ◽  
Manuela Calderón ◽  
Eduardo Bárcena ◽  
Alexandra Tisaire ◽  
Eduardo Raboso
Keyword(s):  
Cochlear Implant ◽  
Residual Hearing ◽  
Electrode Arrays ◽  
Implant Surgery ◽  
Deep Insertion ◽  
Cochlear Implant Surgery

scholarly journals Reliability of start and stop control of hydraulic actuation for the insertion of electrode arrays

2021 ◽  
Vol 7 (2) ◽  
pp. 109-112
Author(s):  
M. Geraldine Zuniga ◽  
Viktor Schell ◽  
Jakob Cramer ◽  
Thomas Lenarz ◽  
Thomas S. Rau
Keyword(s):  
Cochlear Implant ◽  
Infusion Pump ◽  
Electrode Arrays ◽  
Forward Movement ◽  
Average Delay ◽  
Implant Surgery ◽  
Onset Delay ◽  
Actual Movement ◽  
Cochlear Implant Surgery ◽  
And Control

Abstract 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 presented a tool (cochlea hydro drive, CHD) that makes use of an infusion pump to prompt and control the desired, continuous and very slow (< 1 mm/s) forward movement for such insertions. The present work further describes the onset, delay and cessation of the hydraulic actuation in response to different start and stop mechanisms, to better understand the safety of its application for cochlear implant surgery. Methods: Our previously designed tool was used to perform insertions of an EA into an artificial scala tympani model. The prototype is designed to hold an EA, which is then actuated by a standard infusion pump programmed to operate at 0.4 mm/ and 0.1 mm/s. A tubing system between the CHD and the pump includes a three-way valve. Ten insertions were operated using the functions of the pump and ten using the valve. Results: From the programmed start to the actual movement, we observed a larger average delay using the pump’s start function (5 s at 0.4 mm/s; 17 s at 0.1 mm/s) vs. opening the valve (< 0.7 s for both velocities). Moreover, the average cessation of movement with the valve closure was almost immediate (0.7 s for both velocities; this corresponds to < 0.1 mm with the slower tested velocity), as opposed to 60- 80 s delay when using the pump’s stop function. Conclusion: The use of a 3-way valve facilitates motion cessation to the high accuracy level required for cochlear implant surgery. These promising findings support future clinical translation of our tool.

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.

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.

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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